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1
Au, Kin-hei Timothy, and 區建熙. "Quantitative assessment of hand function by hand motion analysis usingcyberglove." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B47849988.
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Hand motion analysis methods have been providing researchers with motion
investigation initiatives, revealing motion features and mechanisms in both
healthy subjects and patients suffering from hand dysfunctions. Technical
advancements have led to the maturation of motion capturing methods such as
goniometric gloves. In this project, the CyberGlove as a manufactured product
was chosen as a potential tool for the development of a hand function assessment
system that would ultimately distinguish between healthy subjects and patients
suffering from hand dysfunctions.
In this study, the evaluation of the CyberGlove as a feasible clinical tool and its
technical adaptations were done in parallel. The sensor output characteristics were
investigated using X-ray photography as a spatial golden standard and the sensors
were shown to exhibit linear qualities with optimal nonlinearities at 0.6%. The
measurement sensitivity and accuracy by the CyberGlove was improved by
establishing a calibration protocol suiting the sensor characteristics. Through a
calibration protocol using calibration tools made by thermoplastics, the angular
measurement error was found to decrease from 7.2% to 1.2%.
The technical development of the software part of the project involved the
inclusion of data preprocessing, display and analysis modules. To investigate the
motion exhibited by healthy subjects, 32 healthy subjects were recruited and they
were asked to complete a series of motion according to a designed motion
protocol involving a static trial, a timed-grip trial and a rapid-grip trial. Motion
features were extracted from recorded motion data by identification and
quantification of temporal or spatial characteristics in motion such as joint
sequence of events, angular kinematics, finger tip path features and phase diagram
features. Some features were evaluated by pattern correlation analysis by linear
regression, and healthy subjects all shared similar patterns resulting in high levels
of regression coefficients R2 and low levels of slope deviations m.
The establishment of motion features along with a prototype motion measurement
system allows the continuous development on the CyberGlove as a hand function
assessment tool when supported by later clinical adaptations or studies.published_or_final_version
Orthopaedics and Traumatology
Master
Master of Philosophy
2
Nasser, Bilal. "A virtual hand assessment system for efficient outcome measures of hand rehabilitation." Thesis, University of Strathclyde, 2016. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27529.
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KUSIAK, ROBERT, and PETER L. PELMEAR. "CLINICAL ASSESSMENT OF HAND-ARM VIBRATION SYNDROME." Nagoya University School of Medicine, 1994. http://hdl.handle.net/2237/16052.
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Wong, Wing-Cheung. "A non-invasive assessment of hand function in cervical myelopathy using the CyberGlove." Click to view the E-thesis via HKUTO, 2003. http://sunzi.lib.hku.hk/hkuto/record/B31972317.
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Wong, Wing-Cheung, and 王榮祥. "A non-invasive assessment of hand function in cervical myelopathy using the CyberGlove." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31972317.
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Gracia, Ibañez Verónica. "Contribution to hand functional assessment based on its kinematics." Doctoral thesis, Universitat Jaume I, 2016. http://hdl.handle.net/10803/398838.
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Aquesta tesi per articles aporta diferents contribucions pràctiques a l'avaluació de la funcionalitat de la mà en el desenvolupament d'activitats de la vida diària (AVD), començant amb una revisió de l'estat de l'art que revela la necessitat d'objectivar l'avaluació funcional de la mà.
En primer lloc es presenta un enfoc qualitatiu, consistent en una gradació dels diferents tipus de prensió en relació a la seva rellevància per a l'autonomia personal.
Es proporcionen valors més reals de rangs actius de moviment (RAM) mitjançant la quantificació de la interrelació entre els rangs de flexo-extensió de l'articulació metacarpofalàngica (MCF) dels dits, útil per comprovar anormalitats.
Amb el fi de caracteritzar la cinemàtica de la mà en AVD, es proposa un nou mètode de calibratge per a un guant instrumentat que requereix el registre de sols una única postura de referència, vàlid per tant per a ser utilitzat amb pacients.
Es posen a disposició rangs de moviments funcionals i es comparen amb els RAM, proporcionant dades que permeten inferir el nivell de funcionalitat en relació amb el RAM assolit.
Finalment, es posa a prova l'ús de l'anàlisi de components principals (ACP) per identificar els paràmetres a utilitzar en l'avaluació funcional, reflectint uns resultats prometedors de l'ús de l'ACP com un mètode objectiu i d'aplicació general per avaluar la funcionalitat de la cinemàtica de la mà.Esta tesis por artículos proporciona diferentes contribuciones prácticas a la evaluación funcional de la mano en el desarrollo de actividades de la vida diaria (AVD), comenzando por una revisión del estado del arte que revela la necesidad de objetivar la evaluación funcional de la mano. En primer lugar se presenta un enfoque cualitativo, consistente en una clasificación de los diferentes tipos de agarre según su relevancia para la autonomía personal. Se proporcionan valores más reales de rangos activos de movilidad (RAM) mediante la cuantificación de la interrelación entre los rangos de flexo-extensión de la articulación metacarpofalángica (MCF) de los dedos, útil para comprobar anormalidades. Con el fin de permitir la caracterización de la cinemática funcional de la mano en AVD, se propone un nuevo método de calibración para un guante instrumentado que requiere del registro de una simple postura de referencia, siendo por tanto válido para su uso con pacientes. Se ponen a disposición rangos funcionales de movimiento y se comparan con los RAM, proporcionándose datos que permiten inferir el nivel de funcionalidad en relación con el RAM alcanzado. Por último, se evalúa el uso de análisis de componentes principales (ACP) para identificar los parámetros a utilizar en la evaluación funcional, obteniéndose resultados prometedores del uso de ACP como un método objetivo y de aplicación general para evaluar la funcionalidad cinemática de la mano.
This thesis by articles provides different practical contributions to the assessment of hand function for developing activities of daily living (ADL), starting with a review of the state of the art revealing the need of objectifying the hand functional assessment. A qualitative approach is presented first, consisting in a rating of the grasp types according to their relevancy for personal autonomy. More realistic values of active range of motion (AROM) are provided through the quantification of the interrelationship between the ranges of flexion and extension of adjacent metacarpophalangeal (MCP) joints of the fingers, useful to check abnormalities. To enable the characterization of the hand kinematics in ADL, a new calibration method for an instrumented glove is proposed, requiring the registration of just one simple reference posture, therefore being valid to be used with patients. Functional ranges of motions are made available and compared with the AROM, providing data that allow inferring the level of functionality in relation to the current AROM. Finally, the use of principal component analysis (PCA) to identify parameters to be used in functional assessment is tested, disclosing promising results of the usage of PCA as an objective and generally applicable method to assess hand kinematics functionality.
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Blenkiron, Elizabeth Lucy. "Hand assessment and rheumatoid arthritis : professional and patient perspectives." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251032.
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O'Mara, Myles. "Predicting Hand Surface Area from a Two-Dimensional Hand Tracing." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7070.
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Recent occupational health studies have focused on dermal exposure at the hands, but have been unable to accurately express dose without knowing the HSA. There is no standard method to calculate HSA, though some researchers have derived HSA formulas based on dimensions from a Taiwanese population. This research paper describes a shortcut method to estimate the hand surface area (HSA) of a human hand from a two-dimensional hand tracing, and repeated a Taiwanese HSA study in order to explore the viability of its HSA formula in an American university population. A sample of nine adult men and nine adult women, each representing one third of the population percentile in hand length and hand breadth, were selected from a population within the University of South Florida in Tampa, FL. Hand length, breadth, a 2D hand tracing and a 3D light hand scan were collected from each participant. A linear regression was used to analyze the data sets and found a correlation (R=0.94) between 2D HSA and 3D HSA and slope of 2.6 (SD=0.2), with a regression equation of Y=2.6(X). A paired t-test was used to compare the Taiwanese HSA formula data against the 3D HSA. Results found that the Taiwanese data sets were significantly different from the 3D HSA (p<0.001), averaging 57 cm2 less than the 3D HSA. A jackknife analysis was implemented on the 2D HSA hand tracing data, and a paired t-test was performed between the jackknife estimate predictions and 3D HSA. Mean differences were not significantly different (p=0.97), with 0.87 cm2 difference between means. Results indicate that the USF Hand Tracing Method will provide a better estimate of HSA than the Taiwanese method, and can be used as a tool in HSA estimation.
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Duz, Serkan. "Accuracy In Body Composition Assessment With Three Different Methods Compared To Dexa." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/12604942/index.pdf.
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The purpose of this study was to investigate differences among the percent
body fat (%BF) values of Turkish sedentary male and female university students
measured by dual-energy x-ray absorptiometry (DEXA), skinfold (SKF), ultrasound
(US) and hand to hand bioelectrical impedance analysis (BIA). Two hundred eight
Turkish university students (one hundred four males and one hundred four females)
aged between 18 to 26 years old participants participated in this study voluntarily.
%BF assessment was performed by the SKF, US, BIA and DEXA methods.
Differences among DEXA, SKF, US and BIA were examined by applying a series of
paired-t test. Multiple regression analyses were conducted to developed regression
equations to predict %BF from SKF and US measurements. Results demonstrated
that there were significant differences between DEXA and SKF, US, and BIA
measurements for males and females. The mean %BF derived from DEXA was
significantly (p<.001) greater than those of SKF, US and BIA for males and females. Multiple regression analyses showed that SKF and US measurement of subcutaneous fat at three-sites gave the best prediction to %BF for male and female separately. The multiple correlations using three sites simultaneously for men and women were r=0.92, SEE=2.4 and r=0.91, SEE=2.8 for SKF and r=0.93, SEE=2.3 and r=0.90, SEE=3.0 for US, respectively. In summary, with the new regression equation US appears to be a reliable, portable, and non-invasive tool which can be used by any field investigator on obese or thin individuals. Finally, new regression equations developed do not seem to be superior to those reported using calipers.
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Lind, Marie-Louise. "Hairdressers - hand eczema, hair dyes and hand protection /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-900-9/.
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Demir, Osman Koray. "Assessment Of Hand-type Hammer Drill Bits Under Percussive Loading." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608282/index.pdf.
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The task of a drill bit in percussive drilling is to transport the initial kinetic energy
of the hammer to the workpiece in terms of stress waves. The efficiency of this
transportation and the stresses that the drill bit is exposed to during the process is
dependent on the nature of the stress waves. In hand-type hammer drilling,
changing dimensions of the bit means changing conditions for the propagation and
interaction of the stress waves.
In this study, using finite element method, wave propagation and interaction in
hand-type hammer drill bits is investigated with respect to drill bit dimensions. The
main aim is to assess the effect of length and thickness on the efficiency and stress
history of a hand-type drill bit. The results are evaluated in regard to workpiece
hardness, which is a factor changing the effect of dimensions. In addition, chiseling
test, which is used to prove bits under percussive loading, is carried out to detect
differences between thin and thick drill bits, and the results are explained with the
help of finite element simulations.
Conclusions are drawn revealing the efficiency and stress history of drill bits under
percussive loading with respect to thickness, length and workpiece hardness.
Finally, it is seen that the real-life results of chiseling test are in agreement with the
simulation results.
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Jerosch-Herold, Christina. "The clinical assessment of hand sensibility after peripheral nerve injury and repair." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246673.
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Engstrand, Christina. "Hand function in patients with Dupuytren’s disease : Assessment, results & patients’ perspectives." Doctoral thesis, Linköpings universitet, Avdelningen för fysioterapi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-125973.
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Background: Dupuytren’s Disease (DD) is a soft tissue disorder that leads to finger joint contractures affecting hand function. DD can be treated with surgery or injection and hand therapy to improve finger joint extension and thereby improve hand function. However, this does not cure the disease and recurrence is common. Previous research on DD has shown improvement in finger joint extension and in self-reported disability of the upper extremity after surgery and hand therapy for DD. However, this provides only a limited perspective on hand function, and multiple dimensions of changes in hand function (i.e. physical, psychosocial aspects and including the patients’ views of results) have not been reported as a whole. Aim: The overall aim of the thesis was to explore hand function before and after surgery and hand therapy in patients with DD, including assessment, results and patients’ perspectives. Methods: The thesis comprises three studies: Study A was a methodological study of interrater reliability in goniometry of the finger joints. Study B was a prospective cohort study with a repeated measures design. Study C was a qualitative interview study, using the model of Patient Evaluation Process and content analysis. Results: Interrater reliability was high or very high for goniometer measurement of finger joint range of motion (ROM) in patients with DD when experienced raters follow our standardized guidelines developed for the study. Changes in hand function consisted of improvement of finger joint extension while active finger flexion was significantly impaired during the first year after surgery and hand therapy. No patient reached a normal ROM, but the majority reached a functional ROM. Sensibility remained unaffected. Patients with surgery on multiple fingers had worse scar pliability than patients with surgery on a single finger. Most patients had their expectations met and were pleased or delighted with their hand function at 12 months after surgery and hand therapy. Safety issues of hand function were of greater concern than social issues. Patients reported less disability and improved health-related quality of life after surgery and hand therapy. The three variables “need to take special precautions”, “avoid using the hand in social context”, and health-related quality of life had significant importance for patients’ rating of functional recovery. Together, these variables explained 62% of the variance in functional recovery. Patients’ perspectives of undergoing a surgical intervention process were described through five categories. Previous experiences of care influenced participants’ expectations of results and the care they were about to receive. Previous experiences and expectations were used as references for appraisal of results, which concerned perceived changes in hand function, the care process, competency, and organization. Appraisal of results could also vary in relation to patient character. Appraisal of results of the intervention process influenced participants’ expectations of future hand function, health and care. Conclusions: Surgery and hand therapy for DD improve hand function and patients regain a functional ROM needed for performance of common daily activities. Despite the negative effect on finger flexion present during the first year after surgery, patients’ regards their hand function as recovered six to eight months after surgery and hand therapy. Measuring digital ROM in the finger joints with a goniometer is a reliable assessment method. However, from the patient’s perspective, it is not enough to evaluate results only in terms of digital extension or ROM. From their view, results of treatment concern consequences on daily use of the hand, what happens during the care process in terms of interaction between patient and health care provider, as well as their view of the competence and logistics of the organization providing the care.
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Bücher, Catherine Anne. "Hand trauma and rehabilitation : the developemnt of an evidence based assessment framework." Thesis, Manchester Metropolitan University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424751.
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Background In the UK there is a concerted drive to deliver evidenced based, patient centred care. Current hand therapy assessment might not reflect practice and policy recommendations particularly in respect of explicit patient centred approaches. The study aim was to develop an assessment framework, modelled on the ICF' to direct efficient and effective patient centred assessment. Objectives 1. Identify a baseline picture of UK hand therapy assessment practice 2. Explore patient perceptions of current assessment practice 3. Explore practitioner perceptions of assessment 4. Construct a framework to facilitate evidence based rehabilitation programmes Methods Purposive sampling and data and methodological triangulation were features of the studies, which included., 1. A postal questionnaire used to survey current hand therapy assessment practice (n=242). 2. Exploration of patient perceptions using a combination of assessment, self report and interview (n=3), semi-structured interviews (n=10) and laddered interviews (n = 5). 3. Exploration of practitioner perceptions using laddered interviews (n=5) and structured interviews (n=3). Data were analysed descriptively and using content analysis. Results Clinical assessment was primarily at the impairment level. Various other 'bespoke' methods, of questionable validity, were also in use. Inconsistent use of terminology was a potential barrier to effective practice. Impairment-based measures did not reflect patient needs and goals and discrepancies were noted between practitioner beliefs around assessment and its application. Conclusion The exclusive use of impairment measures for routine assessment is inadequate. An assessment framework to facilitate reasoned and explicit practitioner choices was developed, within which, patient partnership can be verified explicitly. The framework will enable practitioners to demonstrate clinically reasoned, evidence based and patient centred rehabilitation programmes.
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Kautz, Linda Louise. "Evaluation of the hand grip dynamometer as a tool for nutritional assessment." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184542.
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The purpose of this study was to explore utility of handgrip strength measured by the hand-grip dynamometer for assessment of nutritional status in protein-calorie malnutrition. The first study included six subjects (all right-handed), who had grip strength measured daily for five days, then weekly for three weeks. Intra-individual variability was approximately 10%. No learning or training effect was observed. Change in leg position from feet on the floor to elevation of feet made no significant difference in grip-strength measurement. In Phase Two, 43 healthy adult subjects (three left-handed) prior to elective surgery, height was significantly related to handgrip strength (r = 0.82, p < 0.001). Males were stronger than females. After surgery, the non-dominant hand lost significant strength (2.68 kilograms) and recovered more quickly than the dominant hand. Multiple regression analyses provided predictive equations for pre-surgery left hand-grip strength using age, sex, and height (R² = 0.77); from age, sex, hand measured, and grip strength two days after surgery or three days after surgery (R² = 0.89 for each). Ten sequential grip-strength measurements analyzed by repeated measures analysis of variance with orthogonal comparisons showed a difference in measurements between hands as well as before and after surgery. The slope of the measurement line was more linear before and three days after surgery, but more quadratic in shape two days after surgery. The effects seen by type of surgery were inversion of the slope of right hand sequential measurements two days after knee surgery and before-surgery drop and increase from trial five to trial seven in left hand sequential measurements of knee and vaginal hysterectomy subjects. In a six-month-long case study, grip-strength measurements were followed in a seriously-ill 68-year-old patient hospitalized for surgical repair of hiatal hernia and mucous fistula who underwent several periods of nutritional depletion. Grip strength varied throughout the period (although not differently from healthy subjects), but did not directly parallel changes in serum albumin or prealbumin. The conclusion was that hand strength measured by the handgrip dynamometer did not change enough with fasting and surgery from normal day-to-day variability to be useful for nutritional assessment.
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SVOBODA, LADISLAV, LIBUŠE SMOLÍKOVÁ, VLADIMIL MUFF, DARINA HARTLOVÁ, and LADISLAV LOUDA. "IMPULSIVE VIBRATION AND EXPOSURE LIMIT." Nagoya University School of Medicine, 1994. http://hdl.handle.net/2237/16064.
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Taft, Sara. "Hand Function Evaluation for Dental Hygiene Students." Digital Commons @ East Tennessee State University, 2014. https://dc.etsu.edu/etd/2326.
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Dental hygiene students may struggle in dental hygiene curriculum in regards to hand function. Currently, this is not an aspect dental hygiene programs screen for or have protocol in place to help students. The research in the study examined if hand function could improve with hand function exercises and if exercises improved instrumentation scores. During a 6-week pilot study, an occupational therapist tested the hand function of a cohort of dental hygiene students. The results were recorded and the students began a 6-week hand function exercise regimen. After 6 weeks the same evaluations were preformed and the pre- and posttest data were compared. Statistical tests showed a significant improvement in hand function. After the hand function testing was complete, the scores of the cohort on the periodontal probe and 11/12 explorer were compared to students in the previous 5 cohorts. No significant improvement was made on the instrumentation scores.
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Cortopassi, Andrea Christina [UNESP]. "Tradução para o português brasileiro, adaptação transcultural e validação do 3D Assessment of Hand Function." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/132116.
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000847992.pdf: 590057 bytes, checksum: e4211c42ce2d2169de05854080805e78 (MD5)Introdução: Nas últimas décadas a avaliação do estado de saúde pelo próprio doente tem sido priorizada em detrimento à avaliação somente do ponto de vista do médico. Qualidade de vida relacionada à saúde, capacidade funcional, escalas de dor e satisfação têm sido enfatizadas por possibilitarem a análise da situação de saúde e das manifestações da doença na vida do indivíduo em sua própria perspectiva, complementando os dados clínicos e objetivos. O 3D Assessment of Hand Function é um questionário que avalia dor, função e aparência em pacientes com doenças das mãos, de fácil e rápida aplicação. Objetivos: Traduzir para o português brasileiro, realizar a adaptação transcultural e validar o instrumento de avaliação de patologias da mão 3D Assessment of Hand Function. Métodos: O questionário foi traduzido e adaptado para a população brasileira de acordo com metodologia internacionalmente aceita, tendo sido subsequentemente aplicado na fase de pré-teste a 30 pacientes com lesão nas mãos. Após análise das dificuldades observadas no pré-teste, gerou-se a versão final em português. Em seguida, essa versão foi aplicada a 220 pacientes. A validação foi realizada através de teste e reteste em 23 pacientes. Os dados de tradução foram analisados descritivamente, a confiabilidade teste e reteste pelo Coeficiente de Correlação Intraclasse (ICC) e pelo coeficiente Kappa e a consistência interna pelo Alpha de Cronbach. Resultados: Algumas expressões foram adaptadas à população brasileira, a forma de apresentação do instrumento apresentou algumas alterações para melhor entendimento. Com relação aos resultados de consistência interna na avaliação geral de todos os itens, o Alpha de Cronbach foi de 0,608 considerado razoável, os valores de Coeficiente de Correlação Intraclasse (ICC) para o item 1(função) de 0,796 com intervalo de confiança (IC) de...
Introduction: In recent decades the assessment of health status by the patient has been prioritized over the assessment only the doctor's point of view. Quality of life related to health, functional capacity, pain scales and satisfaction have been emphasized by allow for an analysis of the health situation and the symptoms of the disease in the individual's life in their own perspective, complementing the clinical and objective data. The 3D Assessment of Hand Function is a questionnaire which assesses pain, function and appearance in patients with diseases of the hands, quick and easy application. Objectives: Translate into Brazilian Portuguese, perform the cross-cultural adaptation and validation of the assessment tool of hand pathologies 3D Assessment of Hand Function. Methods: The questionnaire was translated and adapted to the Brazilian populations according to internationally recommended methods, was subsequently applied in the pre-test phase the 30 patients with injuries on the hands. After analyzing the difficulties observed in the pre-test, was generated the final version in Portuguese. This version was administered to 220 patients. The validation was performed through test and retest in 23 patients. The translation data were analyzed descriptively, the test and retest reliability by intraclass correlation coefficient (ICC) and the Kappa coeficiente and the internal consistency Cronbach's Alpha. Results: Some expressions have been adapted to the Brazilian population, as instrument of presentation showed some changes to better understanding of it. Regarding the internal consistency of results in the overall assessment of all items, Cronbach's alpha was 0.608 considered reasonable, the intraclass correlation coefficient values (ICC) for item 1(function) of 0.796 with a confidence interval (CI) of 95% (0.519 to 0.913); item 2 (pain) of 0.880 95% CI (0.670 to 0.941) and item 3 (appearance) of 95 0.907% (0.781 to 0.961). The Kappa ...
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Cortopassi, Andrea Christina. "Tradução para o português brasileiro, adaptação transcultural e validação do 3D Assessment of Hand Function /." Botucatu, 2015. http://hdl.handle.net/11449/132116.
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Orientador: Erika Veruska Paiva OrtolanCoorientador: Trajano Sardenberg
Banca: Hamiltom da Rosa Pereira
Banca: Evandro Pereira Palácio
Resumo: Introdução: Nas últimas décadas a avaliação do estado de saúde pelo próprio doente tem sido priorizada em detrimento à avaliação somente do ponto de vista do médico. Qualidade de vida relacionada à saúde, capacidade funcional, escalas de dor e satisfação têm sido enfatizadas por possibilitarem a análise da situação de saúde e das manifestações da doença na vida do indivíduo em sua própria perspectiva, complementando os dados clínicos e objetivos. O "3D Assessment of Hand Function" é um questionário que avalia dor, função e aparência em pacientes com doenças das mãos, de fácil e rápida aplicação. Objetivos: Traduzir para o português brasileiro, realizar a adaptação transcultural e validar o instrumento de avaliação de patologias da mão "3D Assessment of Hand Function". Métodos: O questionário foi traduzido e adaptado para a população brasileira de acordo com metodologia internacionalmente aceita, tendo sido subsequentemente aplicado na fase de pré-teste a 30 pacientes com lesão nas mãos. Após análise das dificuldades observadas no pré-teste, gerou-se a versão final em português. Em seguida, essa versão foi aplicada a 220 pacientes. A validação foi realizada através de teste e reteste em 23 pacientes. Os dados de tradução foram analisados descritivamente, a confiabilidade teste e reteste pelo Coeficiente de Correlação Intraclasse (ICC) e pelo coeficiente Kappa e a consistência interna pelo Alpha de Cronbach. Resultados: Algumas expressões foram adaptadas à população brasileira, a forma de apresentação do instrumento apresentou algumas alterações para melhor entendimento. Com relação aos resultados de consistência interna na avaliação geral de todos os itens, o Alpha de Cronbach foi de 0,608 considerado razoável, os valores de Coeficiente de Correlação Intraclasse (ICC) para o item 1(função) de 0,796 com intervalo de confiança (IC) de...
Abstract: Introduction: In recent decades the assessment of health status by the patient has been prioritized over the assessment only the doctor's point of view. Quality of life related to health, functional capacity, pain scales and satisfaction have been emphasized by allow for an analysis of the health situation and the symptoms of the disease in the individual's life in their own perspective, complementing the clinical and objective data. The 3D Assessment of Hand Function is a questionnaire which assesses pain, function and appearance in patients with diseases of the hands, quick and easy application. Objectives: Translate into Brazilian Portuguese, perform the cross-cultural adaptation and validation of the assessment tool of hand pathologies "3D Assessment of Hand Function". Methods: The questionnaire was translated and adapted to the Brazilian populations according to internationally recommended methods, was subsequently applied in the pre-test phase the 30 patients with injuries on the hands. After analyzing the difficulties observed in the pre-test, was generated the final version in Portuguese. This version was administered to 220 patients. The validation was performed through test and retest in 23 patients. The translation data were analyzed descriptively, the test and retest reliability by intraclass correlation coefficient (ICC) and the Kappa coeficiente and the internal consistency Cronbach's Alpha. Results: Some expressions have been adapted to the Brazilian population, as instrument of presentation showed some changes to better understanding of it. Regarding the internal consistency of results in the overall assessment of all items, Cronbach's alpha was 0.608 considered reasonable, the intraclass correlation coefficient values (ICC) for item 1(function) of 0.796 with a confidence interval (CI) of 95% (0.519 to 0.913); item 2 (pain) of 0.880 95% CI (0.670 to 0.941) and item 3 (appearance) of 95 0.907% (0.781 to 0.961). The Kappa ...
Mestre
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Weichelt, Bryan P. "Health in your hand| Assessment of clinicians' readiness to adopt mHealth into rural patient care." Thesis, The University of Wisconsin - Milwaukee, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10119483.
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Introduction: Technology is as much rural as it is urban, but mobile health (mHealth) could have a unique impact on health and quality of life for rural populations. The adoption of mobile technologies has soared in recent decades leading to new possibilities for mHealth use. This project considers the impact of these technologies on rural populations. Specifically, it is focused on assessing the barriers of physicians and healthcare organizations to adopt mHealth into their care plans. Gaps in knowledge exist in assessing organizational readiness for mHealth adoption, the use of patient-reported data, and the impact on rural healthcare. This project seeks to address those gaps.
Methods: Utilizing semi-structured, open-ended interviews as the primary instrument of inquiry, clinicians’ current practices, motivators, and barriers to the use of mHealth technologies were identified. Thematic analysis revealed code-category linkages that identify the complex nature of a rural healthcare organization’s current climate from a physician perspective. A thematic map was developed to visualize the flow from category to code. Those linkages were then utilized to construct a refined mHealth readiness model.
Results: Thirteen Wisconsin-based clinicians from the Marshfield Clinic Health System participated in interviews and consults. The interviews uncovered current practices, with 53.8% of participants reporting that they do encourage the use of mHealth apps or wearable devices with patients. Perceived barriers to adoption were categorized into three primary pillars – personal (clinician), patient, and organizational. Organizational was the most prominent category, with codes such as time, uniformity, and policy/direction.
Conclusion: Clinicians, particularly physicians have tight schedules with very limited time for continuing education, research, or exploration into new technologies. Limited clinician time can lead to a lack of familiarity with new and emerging technologies. Clinicians are interested and motivated to learn more, but also need assistance with screening and quality reviews. Organizationally-led directives and suggestions, such as a menu of technologies, would be used.
There are some risks that would need to be mitigated, but if organizations were prepared to manage mHealth it is very likely that physicians could improve the quality of care for their patients. However, many organizations including Marshfield Clinic are not yet prepared to prescribe or prohibit the use of mHealth technologies. Healthcare institutions should consider investing in mHealth analysis, tool development, and the promotion/recommendation of sanctioned tools for clinicians to use with patients.
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Ni, Zhihong. "Computer-based Skeletal Age Assessment Using Hand/Wrist Radiographs in Children 8-18 Years Old." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1284988394.
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Brandon, Mhairi. "The impact of ultrasound imaging on the assessment of the carpometacarpal joint in hand osteoarthritis." Thesis, Glasgow Caledonian University, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.571601.
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Emerging evidence suggests that ultrasound imaging is being increasingly used to assess peripheral joints in clinical practice. However, much of the research focus has been on patients with inflammatory arthritis. Recent studies have explored the use of ultrasound in the evaluation of symptomatic hand osteoarthritis. Assessment of this condition can be challenging particularly with the possibility of coexisting soft tissues pathologies that may arise. The clinical management of hand osteoarthritis with corticosteroid injections as a targeted intervention for symptom modification is routine practice. However, evidence of clinical efficacy is limited. This study evaluated ultrasound imaging as a diagnostic tool in addition to clinical examination in patients with symptomatic hand osteoarthritis. A consecutive sample of forty patients attending Glasgow Royal Infirmary Rheumatology Department were recruited to this study. The primary aim of this study was to establish if the symptoms of carpometacarpal joint osteoarthritis could be improved by identifying and treating coexisting pathologies such as median nerve entrapment and/or De Quervain's tenosynovitis. The study was divided into three stages: Stage 1 investigated the carpometacarpal joint and associated pathologies; Stage 2 identified whether knowledge of the ultrasound scan influenced clinical decision- making and planning of corticosteroid injections following the random allocation of patients to two groups; and Stage 3 measured the level of disease burden to the individual using the Australian/Canadian Osteoarthritis Hand Index over 12 weeks following intervention. The study findings demonstrated that ultrasound scanning when used in addition to routine clinical examination is beneficial to image the associated pathologies of median nerve entrapment and De Quervain's tenosynovitis in osteoarthritis of the carpometacarpal joint. Ultrasound was found to influence the clinical decision making in targeting corticosteroid injections for the management of symptomatic hand osteoarthritis. However, prior knowledge of ultrasound findings did not result in improved clinical outcomes as measured by the AUSCAN. The detection of additional pathologies in carpometacarpal joint disease may allow for earlier targeted treatment with corticosteroid injections aimed at improving hand symptoms and function.
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Luxmoore, Joseph Spencer. "Development of a Finite Element Model of the Hand for the Assessment of Human-Product Interaction." Thesis, University of Sheffield, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.515487.
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Johansson, Arja, and Håkan Svensson. "Hand- och armvibrationer : Praktisk användning av befintliga metoder för bestämning av vibrationsexponering." Thesis, KTH, Ergonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-215085.
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Bakgrund: Författarna till detta examensarbete upplevde, inom ramen för sitt arbete i företagshälsovården, att arbetsledare med arbetsmiljöansvar var osäkra på hur de skulle utföra bedömningar av daglig vibrationsexponering och riskbedömningar gällande vibrerande handverktyg. Enligt Arbetsmiljöverkets föreskrift, Systematiskt arbetsmiljöarbete, (AFS 2001:1) är arbetsgivare skyldiga att som en del i den dagliga verksamheten undersöka vilka risker som finns. Syfte: Syftet var att identifiera befintliga metoder för att bedöma exponering för hand- och armvibrationer och få en fördjupad kunskap om hur arbetsledare använde dessa metoder vid riskbedömning för att bemöta lagkrav. Metod: En explorativ studie med kvalitativ design. Identifierade befintliga metoder för bedömning av vibrationsexponering togs fram via en litteraturstudie. Två fokusgrupps-intervjuer och 12 telefonintervjuer med bilverkstäder, samt fyra telefonintervjuer med inspektörer från Arbetsmiljöverket (AV) utfördes. Resultat och analys: Nio metoder identifierades för bedömning av daglig vibrationsexponering. Utifrån intervjuerna skapades fyra teman, riskbedömning, metodanvändning, kunskap och stöd. Brist på dokumenterade riskbedömningar uppgavs från både inspektörer och arbetsledarna. Bilverkstäderna använde ingen specifik metod. AV-inspektörerna ansåg att chefer och arbetsledare med befintliga metoder på egen hand borde klarat av att göra en bedömning av daglig vibrationsexponering. Företagen efterlyste stöd från leverantörerna av handhållna verktyg. Diskussion och slutsats: Kunskap saknades hos företagen om hur de skulle bedöma den dagliga vibrationsexponeringen. Det var en utmaning för företagen att inte invaggas i en falsk trygghet och tro att ny utrustning fråntog kravet på att utföra dokumenterade riskbedömningar. Externa aktörer som branschorganisationer kunde arbeta mer med dessa frågor och aktivt stötta sina medlemmar. Företagshälsovården som expertresurs kunde mer proaktivt stödja arbetsgivaren i deras arbete med riskbedömningar, utbildningar och medicinska kontroller. Triggertiden och vibrationsnivåerna ansågs svårbedömda av företagen. AV:s webbaserade kalkylator eller Poängmetoden bedömdes som lättillgängliga och enkla metoder och rekommenderades för bedömning av daglig vibrationsexponering. Fler inspektioner från AV ansågs behövas för att få fler riskbedömningar utförda. Små företag var enligt AV generellt sämre på att utföra riskbedömningar. Ett väl fungerande systematiskt arbetsmiljöarbete var en förutsättning för att riskbedömning gällande vibrationer kunde utföras. Om företaget inte hade för vana eller hade kunskap att arbeta systematiskt med övriga risker så skulle heller inte vibrationerna kunna bli riskbedömda.Background: The authors experienced in the context of their occupational health care work, that occupational safety supervisors were unsure of how they would assess the daily vibration exposure and risk assessments of vibrating hand tools. According to the Work Environment Authority (AFS 2001: 1), employers are obliged to investigate risks involved in their daily activities. Aim: The purpose was to identify existing methods for assessing exposure to hand and arm vibrations and obtain knowledge of how supervisors used these methods in risk assessment to respond to legal requirements. Method: An explorative study with qualitative design. Identified existing methods of vibration exposure were obtained through a literature study. Two focus group interviews, 12 telephone interviews with car workshops and four with inspectors from the Work Environment Authority (AV) were conducted. Results and Analysis: Nine methods were identified for the assessment of daily vibration exposure. Based on the interviews, the four themes, risk assessment, methodology, knowledge and support were created. Lack of documented risk assessments were stated by both inspectors and companies. The garages did not use any specific method. The AV inspectors considered that managers and supervisors with existing methods should been able to assess the daily vibration exposure on their own. The companies called for support from suppliers. Discussion and conclusion: Knowledge was lacked in companies how to assess the daily vibration exposure. It was a challenge for companies not to be caught in fake security and believe that new equipment abolished the requirement to carry out documented risk assessments. External actors such as industry organizations could work harder on these issues and actively support their members. Corporate health care as an expert resource could more proactively support the employer in their work with risk assessments, education and medical checks. Trigger time and vibration levels were considered difficult to assess by the companies. AV's web-based exposure calculator or score method were assessed as easily accessible and simple methods and were recommended for assessing daily vibration exposure. More inspections from AV were considered necessary to get more risk assessments performed. According to AV, small companies were generally poorer in conducting risk assessments. A well functioning systematic work was a prerequisite for the risk assessment of vibration to be performed. If the company had no habit or knowledge to work systematically with other risks, they will not neither assess the vibration risk.
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Sabino, Letícia Akemi de Araújo Sakamoto. "Elaboração de um protocolo de avaliação da função manual de crianças com paralisia cerebral - etapa inicial." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/17/17140/tde-04012017-104433/.
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As habilidades manuais podem estar prejudicadas na paralisia cerebral (PC), interferindo nas atividades funcionais do cotidiano da criança, como alimentar-se, ir ao banheiro, brincar, o que ocasiona impacto negativo na vida dela e da família. Objetivo: elaborar, aplicar e analisar um protocolo de avaliação da função manual de crianças com PC, de 0 a 7 anos e 11 meses de idade. Método: estudo dividido em 2 etapas - 1) planejamento: definição de objetivo e população alvo, realização de revisão da literatura sobre instrumentos já existentes, tipos de itens e formato de instrumento, 2) construção: construção I -desenvolvimento dos itens, seleção dos instrumentos utilizados como base do protocolo, seleção dos itens relevantes por faixa etária, análise dos itens e adequação do protocolo; projeto piloto - aplicação do protocolo junto a 36 crianças de 0 a 7 anos e 11 meses, sendo 18 com PC e 18 com desenvolvimento típico (DT), análise dos itens e adequação do protocolo; construção II - validação de conteúdo por profissionais/pesquisadores experientes (experts) na área, elaboração e envio do questionário aos juízes especialistas, revisão dos itens (inclusão e exclusão), análise das avaliações dos especialistas e adequação do protocolo. Resultados: foram selecionados 238 itens, sendo 38 itens da Escala Lúdica Pré Escolar de Knox (ELPKR), 126 do Inventário Portage Operacionalizado (IPO), 32 do Teste de Triagem de Desenvolvimento de Denver II (TTDD-R), 38 do Inventário de Avaliação Pediátrica de Incapacidade (PEDI) e 4 do Manual de Avaliação Motora - Escala de Desenvolvimento Motor (MAM-EDM). Todos os itens foram revisados. Realizou-se o agrupamento de 161 itens recorrentes, totalizando 120 itens, os quais foram aplicados em crianças com PC e DT. Após a aplicação, em nova análise do protocolo, foram agrupados 6 itens semelhantes, divididos 2 e excluídos 7, totalizando 109 itens, os quais foram enviados em forma de questionário para os juízes especialistas. Na sequência, as avaliações dos experts foram analisadas e, então, 3 itens foram agrupados, 1 item subdividido e 7 itens excluídos, chegando-se a um protocolo final com 101 itens, divididos em 8 faixas etárias: de 0 a 5 meses, de 6 meses a 11 meses, de 1 ano a 1 ano e 11 meses e, sucessivamente, na sequência anual até de 4 anos a 4 anos e 11 meses; em seguida há uma faixa etária de 5 anos a 6 anos e 11 meses e, após, a faixa etária de 7 anos a 7 anos e 11 meses. O resultado foi então denominado de Avaliação Manual Infantil Geral e Objetiva - AMIGO. Foram observadas 2 crianças de cada grupo em cada faixa etária, sendo que as crianças com DT apresentaram, no geral, melhores pontuações quando comparadas às crianças com PC da mesma faixa etária. Considerações finais: a avaliação AMIGO foi considerada válida e alcançou seu objetivo principal. Ainda está, porém, em processo de construção e, em estudos futuros, passará por mais duas fases de construção, sendo elas a fase III - avaliação quantitativa e a fase IV - validação, para que possa ser considerada totalmente válida e segura a sua utilização na prática clínica e na pesquisa científica.Manual skills may be affected in cerebral palsy (CP), interfering with functional activities of child\'s daily life, such as eating, toileting, playing, which causes negative impact on child´s life and family. Objective: To develop, implement and analyze an evaluation protocol to assess manual children function with CP, aged between 0-7 years and 11 months old. Method: This study was divided into two stages - 1) planning: setting goals and target population, literature review on existing instruments, types of items and instrument format, 2) Construction: Construction I -development of items, selection of instruments used as basis of the protocol, selection of relevant items by age group, item analysis and protocol adjustment; Pilot Project - protocol application with 36 children 0-7 years, 11 months, 18 CP childerb and 18 children with typical development (TD), item analysis and protocol adjustment; Construction II - Content validation by professional / experienced researchers (experts) in the area, preparation and submission of the questionnaire to expert judges, items review (item inclusion or exclusion), analysis of experts evaluations and suitability of the protocol. Results: We selected 238 items, 38 items Revised Knox Preschool Scale (RKPPS) 126 items from Operationalized Portage Inventory (IPO), 32 from Denver II Developmental Screening Test (DDST-R) 38 from Pediatric Evaluation of Disability Inventory (PEDI) and 4 from Manual of Motor Evaluation - Motor Development Scale (MAM-EDM). All items were reviewed. We grouped 161 recurring items, totalizing 120 items, which we applied both in CP children and with CP and TD children. After the implementation, we performed a new protocol analysis and 6 similar items were grouped, 2 items divided and 7 items excluded, totalizing 109 items, which were sent as questionnaire to the expert judges. Further, experts assessments were analyzed and then 3 items were grouped, 1 item subdivided, and 7 items deleted, coming to a final protocol with 101 items, divided into eight age groups: 0-5 months of 6 months to 11 months, 1 year to 1 year and 11 months and, subsequentially, the annual sequence till 4 years to 4 years and 11 months; then there is an age group between 5 years and 6 years and 11 months, and after the age of 7 years to 7 years and 11 months. The resulting product was then called Children´s Manual Assessment General and Objective - AMIGO. Two children in each group were observed at each age, and children with TD had, overall, better scores compared to children with CP in each age group. The final considerations were that AMIGO has been valid and reached its main goal. But it is still under construction, and in future studies it will go through two more stages of construction, which were phase III - quantitative assessment and phase IV - validation, in order to be considered valid and secure to be uesd in clinical practice and in scientific research.
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Andrén, Martin, and David Johansson. "Skillnader i handfunktion? -En beskrivning av handfunktionen hos en frisk svensk population genom Southampton Hand Assessment Procedure (SHAP)." Thesis, Örebro universitet, Institutionen för hälsovetenskap och medicin, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-36135.
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Westerberg, Erik. "AI-based Age Estimation using X-ray Hand Images : A comparison of Object Detection and Deep Learning models." Thesis, Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-19598.
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Bone age assessment can be useful in a variety of ways. It can help pediatricians predict growth, puberty entrance, identify diseases, and assess if a person lacking proper identification is a minor or not. It is a time-consuming process that is also prone to intra-observer variation, which can cause problems in many ways. This thesis attempts to improve and speed up bone age assessments by using different object detection methods to detect and segment bones anatomically important for the assessment and using these segmented bones to train deep learning models to predict bone age. A dataset consisting of 12811 X-ray hand images of persons ranging from infant age to 19 years of age was used. In the first research question, we compared the performance of three state-of-the-art object detection models: Mask R-CNN, Yolo, and RetinaNet. We chose the best performing model, Yolo, to segment all the growth plates in the phalanges of the dataset. We proceeded to train four different pre-trained models: Xception, InceptionV3, VGG19, and ResNet152, using both the segmented and unsegmented dataset and compared the performance. We achieved good results using both the unsegmented and segmented dataset, although the performance was slightly better using the unsegmented dataset. The analysis suggests that we might be able to achieve a higher accuracy using the segmented dataset by adding the detection of growth plates from the carpal bones, epiphysis, and the diaphysis. The best performing model was Xception, which achieved a mean average error of 1.007 years using the unsegmented dataset and 1.193 years using the segmented dataset.Presentationen gjordes online via Zoom.
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Johansson, Gudrun M. "Clinical and kinematic assessments of upper limb function in persons with post-stroke symptoms." Doctoral thesis, Umeå universitet, Fysioterapi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-103244.
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Stroke is a common and multifaceted disease that often involves motor deficits in the upper limb. This thesis investigated reliability and validity of existing clinical assessments of upper limb function in persons with post-stroke symptoms and in non-disabled controls. Study I was conducted in a clinical setting where the Motor Evaluation Scale of Upper Extremity in Stroke patients (MESUPES) was assessed in persons post-stroke by two physiotherapists selected from a group of four. Study II-IV took place in a motion analysis laboratory with an optoelectronic system. Kinematic measures and clinical measures were used to investigate the validity of the Arm Posture Score (APS), the Finger-to-Nose test (FNT), and the Standardised Nine Hole Peg test (S-NHPT) in persons post-stroke and non-disabled controls. The results showed that the MESUPES had a high inter-rater reliability while the concurrent validity was not fully confirmed. MESUPES has a maximum score of 58 and the minimal detectable change ranged from 5 to 8 for a confidence level of 80% and 95%. The Arm Posture Scores, which include either four or six arm movement variables, were able to distinguish between the affected and non-affected arms, as well as between the affected arm and the non-dominant arm of the controls. The total movement time of the FNT, which is a coordination test, was able to distinguish persons post-stroke from controls, at least at a group level. Movement smoothness, accuracy and compensation, obtained from kinematic analysis, were the most discriminative variables for the FNT. Smoothness was most strongly correlated with the timed FNT and had the greatest association with the variance of the timed FNT. For the S-NHPT, which is a dexterity test involving grasping and reaching, the movement times, smoothness and compensation discriminated between the stroke group and the control group. Persons post-stroke spent considerably more time in the grasp-related parts of the task compared to controls. Smoothness and upper limb impairments had the strongest correlation with the S-NHPT. In conclusion, the clinical measures used within stroke rehabilitation seem valid and reliable, although some limitations are highlighted by the kinematic assessment. MESUPES was shown to be a reliable assessment of upper limb movement quality after stroke. The kinematic analysis revealed that the timed FNT does not have sufficient discriminative validity at an individual level. The timed FNT reflected speed-related aspects of pointing movements such as smoothness and length of the deceleration phase, but should not be used as an overall measure of upper limb coordination after stroke. The timed S-NHPT demonstrated sufficient discriminative validity and reflected smoothness and upper limb impairments. For both the FNT and S-NHPT, kinematic analysis showed that the clinical outcomes of those tests (time of performance) did not adequately detect qualitative aspects of the upper limb movements after stroke such as possible compensatory movements. Therefore, clinical assessments that capture qualitative aspects of upper limb movements would improve the assessment of upper limb coordination and dexterity after stroke. In addition, 3D movement analysis provided unique information about upper limb function after stroke, not least in persons with mild post-stroke impairments. The APS, for instance, which quantifies how much the arm swing during gait deviates from normal, discriminated between persons with stroke and non-disabled persons. Such subtle deviations are not possible to quantify with the human eye.
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Deodhar, Atulya A. "Development of dual energy X-ray absorptiometry to measure hand bone mineral content for the assessment of rheumatoid arthritis." Thesis, University of Bath, 1996. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362240.
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Yen, Wei-Ting. "Product Physical Interface Design Characteristics for Older Adults with Hand Use Limitations." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1313518203.
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Broman, Adam, and Gustav Blom. "Assessment of function of a 3D-printed body-powered upper limb prosthetic device." Thesis, Hälsohögskolan, Högskolan i Jönköping, HHJ, Avd. för rehabilitering, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-44578.
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Purpose Conventional arm-prosthesis are expensive to make and therefore limit the availability for users on the geographical locations there the user pays for it. This study compares the hand function of a 3D-printed prosthesis with lower production cost with a traditional prosthesis. Method A test person performed two different tests of hand function (Box and Block test and Nine-hole peg test) with a myoelectric trans radial prosthetic arm and a body powered 3D printed trans radial prosthetic arm. The test person also answered two parts of the orthotics and prosthetics users’ survey (OPUS) considering both prosthetic arms. Result The 3D-printed prosthesis performed worse than the traditional prosthesis in the two tests of hand function and generally worse in the questionnaire about the function of the prosthesis. Though it got higher values in comfort and affordability. Conclusion There was a significant difference in function between the 3D-printed prosthesis and the myoelectric prosthesis but the printed prosthesis could perform many activities in daily living. Whether the 3D-printed prosthetic device is priceworthy or not is hard to measure because of different criteria, therefore a conclusion is hard to reach.
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Reynolds, Mikaela. "Constructing improved standards for bone age assessment of Australian children." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/203719/1/Mikaela_Reynolds_Thesis.pdf.
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This study constructed contemporary radiographic bone age estimation standards for the Queensland paediatric population through a morphological and morphometric analysis of the ossification of the hand and wrist. A digital application is introduced and recommended as an alternative to traditional techniques to improve the accuracy of maturational assessment in a multi-ancestral population. These standards will improve the reliability of bone age estimation in clinical and forensic applications.
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Wareham, Kenneth L. "Hand-Held Calculators And Mathematics Achievement: What the 1996 National Assessment Of Educational Progress Eighth-Grade Mathematics Exam Scores Tell Us." DigitalCommons@USU, 2005. https://digitalcommons.usu.edu/etd/6225.
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The purpose of this study was to analyze the 1996 National Assessment of Educational Progress data to identify the relationship between calculator use and student performance on the National Assessment of Educational Progress Mathematics Assessment. This general purpose includes several sub issues. In addition to being interested in the overall relationship between use and National Assessment of Educational Progress achievement (including the effort to control for spurious factors), this study examined the contextual factors that moderate the impact of calculator use. Similarly, it analyzed the relationship between calculator use and student performance on calculator-allowed and calculator-restricted items, as well as the ability of students to recognize whether the use of a calculator was appropriate when responding to a math problem.
Findings indicate that significant differences in achievement exist between students who regularly use calculators and those who do not use calculators. Even when controlling for various contextual factors that moderated this relationship (e.g., gender, socioeconomic status, parents' level of education, students' National Assessment of Educational Progress achievement level), it was found that the more frequently students use a calculator the higher their scores tend to be. The results also show that when not allowed to use calculators, the more frequent calculator users continue to score higher than those who do not use calculators. Finally, using calculators does not automatically equate to calculator dependence, and, in fact, the more often students use a calculator the more adept they are at applying it properly and withholding it when inappropriate.
Based on the findings of this study, the use of a calculator in mathematics classes should improve students' ability to learn mathematical concepts and apply calculator technology in an appropriate manner when solving mathematical problems.
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Bocké, Åsa. "”Hand reach star excursion balance test” : Assessment of dynamic functional mobility in female elite team gymnasts in relation to overuse injuries." Thesis, Luleå tekniska universitet, Institutionen för hälsovetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-77483.
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Background Clinical usable assessment methods to quantify mobility, balance, stability and postural control functions together in a full kinetic chain movement are sparse. Normative data of such dynamic functions in different group of athletes are still lacking and therefore the relationship between dynamic functional mobility and overuse injuries are also unknown. The prevalence of overuse injuries among adolescent athletes are continuously high and team gymnastic is one example of a sport with multiple and underestimated overuse injuries. Aim The first aim of study was to establish normative data of dynamic functional mobility in a group of elite team gymnasts. The second aim was to investigate ongoing overuse injuries and evaluate associations between ongoing overuse injuries and dynamic functional mobility in the group. Method A descriptive cross sectional study including 31 female elite team gymnasts 16-19 years old were conducted. “The hand reach star excursion balance test” (HSEBT) was used to measure dynamic functional mobility in 20 different movement patterns. The "Oslo Sports Trauma Research Center Overuse Injury Questionnaire"(OSTRC) was used to record and analyse severity of ongoing overuse injuries in the group. Pearson correlation analysis was used to determine the relationship between the scoring in the HSEBT- tests and scoring on the OSTRC. Results A majority of the participants presented with scores near the maximum values on the HSEBT. Further, 97% of the subjects had an ongoing overuse injury. Severe injuries, affecting participation in sport were present in 67%. Correlations was found between prevalence of severe injury in the lower back and lower scoring on the right leg in a rotational movement pattern (r= -0,42) whereas prevalence of severe injury in the hip was associated with extreme high mobility in a sidebending pattern in both legs (r= 0,50, 0,49). There was also a relationship between individuals with multiple severe overuse injuries and dynamic functional mobility in an extended movement pattern of the left leg (r= -0,36, -0,38). Conclusion Normative data of dynamic functional mobility according to the HSEBT can provide clinicians with reference points to compare elite female team gymnasts. There was an indication of association between limited mobility in some of the included tests and prevalence of overuse injuries in the lower back and hip. This study included a small sample and therefore conclusions have to be interpreted carefully.
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Abolfathi, Peter Puya. "Development of an Instrumented and Powered Exoskeleton for the Rehabilitation of the Hand." Thesis, The University of Sydney, 2008. http://hdl.handle.net/2123/3690.
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With improvements in actuation technology and sensory systems, it is becoming increasingly feasible to create powered exoskeletal garments that can assist with the movement of human limbs. This class of robotics referred to as human-machine interfaces will one day be used for the rehabilitation of paralysed, damaged or weak upper and lower extremities. The focus of this project was the development of an exoskeletal interface for the rehabilitation of the hands. A novel sensor was designed for use in such a device. The sensor uses simple optical mechanisms centred on a spring to measure force and position simultaneously. In addition, the sensor introduces an elastic element between the actuator and its corresponding hand joint. This will allow series elastic actuation (SEA) to improve control and safely of the system. The Hand Rehabilitation Device requires multiple actuators. To stay within volume and weight constraints, it is therefore imperative to reduce the size, mass and efficiency of each actuator without losing power. A method was devised that allows small efficient actuating subunits to work together and produce a combined collective output. This work summation method was successfully implemented with Shape Memory Alloy (SMA) based actuators. The actuation, sensory, control system and human-machine interface concepts proposed were evaluated together using a single-joint electromechanical harness. This experimental setup was used with volunteer subjects to assess the potentials of a full-hand device to be used for therapy, assessment and function of the hand. The Rehabilitation Glove aims to bring significant new benefits for improving hand function, an important aspect of human independence. Furthermore, the developments in this project may one day be used for other parts of the body helping bring human-machine interface technology into the fields of rehabilitation and therapy.
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Abolfathi, Peter Puya. "Development of an Instrumented and Powered Exoskeleton for the Rehabilitation of the Hand." University of Sydney, 2008. http://hdl.handle.net/2123/3690.
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Doctor of Philosophy (PhD)With improvements in actuation technology and sensory systems, it is becoming increasingly feasible to create powered exoskeletal garments that can assist with the movement of human limbs. This class of robotics referred to as human-machine interfaces will one day be used for the rehabilitation of paralysed, damaged or weak upper and lower extremities. The focus of this project was the development of an exoskeletal interface for the rehabilitation of the hands. A novel sensor was designed for use in such a device. The sensor uses simple optical mechanisms centred on a spring to measure force and position simultaneously. In addition, the sensor introduces an elastic element between the actuator and its corresponding hand joint. This will allow series elastic actuation (SEA) to improve control and safely of the system. The Hand Rehabilitation Device requires multiple actuators. To stay within volume and weight constraints, it is therefore imperative to reduce the size, mass and efficiency of each actuator without losing power. A method was devised that allows small efficient actuating subunits to work together and produce a combined collective output. This work summation method was successfully implemented with Shape Memory Alloy (SMA) based actuators. The actuation, sensory, control system and human-machine interface concepts proposed were evaluated together using a single-joint electromechanical harness. This experimental setup was used with volunteer subjects to assess the potentials of a full-hand device to be used for therapy, assessment and function of the hand. The Rehabilitation Glove aims to bring significant new benefits for improving hand function, an important aspect of human independence. Furthermore, the developments in this project may one day be used for other parts of the body helping bring human-machine interface technology into the fields of rehabilitation and therapy.
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Ramasodi, Robert Mooketsa. "Pest risk analysis on hand luggage at OR Tambo International Airport a case study of flights from Cameroon, India and Kenya /." Diss., Pretoria : [s.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-02112009-104221.
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Gunnarsson, Ann-Britt, and Minke Wersäll. "Hand Arm RiskbedömningsMetod (HARM) : Utvärdering av en metod för riskbedömning av biomekanisk belastning av övre extremiteten vid manuellt arbete samt dess lämplighet vid arbetsmiljötillsyn." Thesis, KTH, Ergonomi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-98418.
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AbstractIntroduction: Hand Arm Risk Assessment Method (HARM) is a tool to assess the risks of developing complaints of the arm, neck or shoulders during manual work. The method was developed in the Netherlands primarily for employers, but is also used as an aid to work environment inspectors. The purpose of this study was to evaluate the HARM-method for assessment of biomechanical exposure of the upper limbs when performing manual tasks as well as its suitability to be used within work environment inspection. Methods: Ten labour inspectors conducted assessments of five video-recorded work tasks. Assessments made with HARM were compared with those made with the Assessment of Repetitive Tasks (ART) tool and with ACGIH Hand Actvity Level (HAL) - both methods for assessment of biomechanical exposure of the upper limbs - and with the model for the assessment of repetitive work in the provisions of the Swedish Work Environment Authority on ergonomics for the prevention of musculoskeletal disorders, AFS 1998:1. HAL is based on a threshold limit value for hand activity. The method combines the assessment of hand activity with perceived effort in the hand and forearm. The assessments were made twice, two weeks apart. Following each assessment the inspectors answered questions about the suitability of each method. Three experts (X) made the same assessments, first individually just like the inspectors’, and then they agreed upon a consensus estimation. Head and upper arm position were registered by inclinometer, wrist movements with electro goniometer. The observers' assessments were compared with a “gold standard” that was created by the results of the technical measurements which replaced the consensus estimates for the head and arm positions as well as wrist motions in the HARM, ART and HAL assessments. Results: The inspectors' assessment of HARM and ART showed in comparison with the respective “gold standard” some underestimation of risks. Conformity in the test-retest was 68 % at appraisal with HARM and 66 % with ART. Based on the inspectors' observations it was revealed that force and frequency were experienced as the most difficult to assess. On the other hand the individual assessments indicated that the work position of the hand and forearm showed the largest deviation. Hand activity was both over and undervalued in comparison with technical measurements, suggesting that it is difficult to simply assess hand activity by observation. Furthermore, the model for identifying repetitive work in AFS 1998:1 was perceived to be the most difficult to use for performing assessments, as it has few criteria and no support for the assessment of hand/arm and hand intensive movements. This underlines that there is a need for other models as a supplement to the provisions. Conclusions: The results showed that the HARM and ART are relatively similar in content and structure and provided relatively similar results. HARM is more detailed than ART as it takes into account the vibration exposure as a single factor and shows more consideration to the duration of exposure. The HARM-method provides support for the assessment; it is easy to use, it needs pen and paper only and is in that sense readily available, it is fast and takes into account the whole of the assessment of biomechanical exposure of the upper limbs. ART is very similar to HARM; HAL is more limited and can be used as a rapid screening of hand load.Sammanfattning Inledning: Hand Arm RiskbedömningsMetod (HARM) är ett verktyg för bedömning av belastning på hand och arm vid manuellt arbete. Metoden är framtagen i Nederländerna, i första hand till arbetsgivare, metoden används också som ett stöd för arbetsmiljöinspektörer. Syftet med den här studien var att utvärdera HARM-metodens tillförlitlighet och dess lämplighet som hjälpmedel för arbetsmiljöinspektörer vid riskbedömning av belastning på hand, arm och axel vid manuellt arbete. Metod: Tio observatörer tillika arbetsmiljöinspektörer genomförde bedömningar av fem videoinspelade arbetsmoment. Bedömningar gjorda med HARM jämfördes med bedömningar med Assessment of Repetitive Tasks (ART) och Hand Activity Level (HAL) samt modellen för bedömning av ensidigt upprepat arbete i Arbetsmiljöverkets föreskrifter om belastningsergonomi, AFS 1998:1. HAL bygger på ett gränsvärde för handaktivitet. Metoden kombinerar bedömning av handens aktivitet med upplevd ansträngning i hand och underarm. Bedömningarna gjordes två gånger med två veckors mellanrum. I anslutning till varje bedömning besvarades frågor om respektive metods användbarhet. Tre experter (X) gjorde först enskilt motsvarande bedömningar som observatörerna och enades därefter i en konsensusbedömning. Huvudets- och överarmarnas position registrerades med inklinometer, handledsrörelser med elektrogoniometer. En ”gyllene standard” som observatörernas mätningar kunde jämföras med, skapades genom att resultaten av de tekniska mätningarna ersatte konsensusbedömningen för huvud- och armposition samt handledsrörelserna för HARM, ART och HAL. Resultat: Observatörernas bedömningar med HARM och ART visade i jämförelse med respektive gyllene standard på en viss undervärdering av risker. Överensstämmelsen vid test-retest av arbetsmomenten var 68 % vid bedömning med HARM och 66 % med ART. Av observatörernas synpunkter framkom att kraft och frekvens upplevdes svårast att bedöma. Av de enskilda bedömningarna framkom dock att det var arbetsställning i hand och underarm som visade den största avvikelsen. Handaktivitet både över- och undervärderades i jämförelse med tekniska mätningar, vilket pekar på att det är svårt att enbart genom observation bedöma handaktivitet. Vidare framgick att AFS upplevdes vara svårast att använda som underlag till en belastningsergonomisk riskbedömning, då den har få kriterier och saknar bedömningsstöd för hand/arm och handintensiva rörelser. Detta understryker att det kan behövas ett komplement till AFS. Slutsatser: Resultaten visade att HARM och ART är relativt lika till innehåll och struktur och gav förhållandevis likvärdiga resultat. HARM är mer nyanserad än ART då den dels tar hänsyn till vibrationsexponering som en enskild faktor och dels justerar för exponeringstid. HARM-metoden ger stöd vid bedömning, är snabb och lätt att använda, endast papper och penna krävs och den tar hänsyn till helheten vid bedömning av nack- och arm belastning. ART är mycket lik HARM. HAL är mer begränsad och kan användas som en snabb screeningmetod för handbelastning.
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Kincaid, Clay Jordan. "The Feasibility of Using a Markerless Motion Capture Sensor (Leap MotionTM Controller) forQuantitative Motor Assessment Intended for a Clinical Setting." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/6262.
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Although upper limb motor impairments are common, the primary tools for assessing and tracking these impairments in a clinical setting are subjective, qualitative rating scales that lack resolution and repeatability. Markerless motion capture technology has the potential to greatly improve clinical assessment by providing quick, low-cost, and accurate tools to objectively quantify motor deficits. Here we lay some of the groundwork necessary to enable markerless motion capture systems to be used in clinical settings. First, we adapted five motor tests common in clinical assessments so they can be administered via markerless motion capture. We implemented these modified tests using a particular motion capture sensor (Leap MotionTM Controller, hereafter referred to as the Leap Motion sensor) and administered the tests to 100 healthy subjects to evaluate the feasibility of administrating these tests via markerless motion capture. Second, to determine the ability of the Leap Motion sensor to accurately measure tremor, we characterized the frequency response of the Leap Motion sensor. During the administration of the five modified motor tests on 100 healthy subjects, the subjects had little trouble interfacing with the Leap Motion sensor and graphical user interface, performing the tasks with ease. The Leap Motion sensor maintained an average sampling rate above 106 Hz across all subjects during each of the five tests. The rate of adverse events caused by the Leap Motion sensor (mainly jumps in time or space) was generally below 1%. In characterizing the frequency response of the Leap Motion sensor, we found its bandwidth to vary between 1.7 and 5.5 Hz for actual tremor amplitudes above 1.5 mm, with larger bandwidth for larger amplitudes. To improve the accuracy of tremor measurements, we provide the magnitude ratios that can be used to estimate the actual amplitude of the oscillations from the measurements by the Leap Motion sensor. These results suggest that markerless motion capture systems are on the verge of becoming suitable for routine clinical use, but more work is necessary to further improve the motor tests before they can be administered via markerless motion capture with sufficient robustness for clinical settings.
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Jabour, Anwar Shawqi Alhazmi. "ASSESSMENT OF SPHENO-OCCIPITAL SYNCHONDROSIS FUSION TIMING AND AN EVALUATION OF ITS RELATIONSHIP WITH SKELETAL MATURITY, DENTAL MATURITY AND MANDIBULAR GROWTH." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1492129080263492.
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Paulo, Danilo Pazian [UNESP]. "Desenvolvimento de um dinamômetro biomédico ergonômico com comunicação com dispositivos móveis." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151081.
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Dinamômetros biomédicos são equipamentos utilizados para medir forças exercidas pelas mãos. Com o uso deste tipo de equipamento, é possível realizar avaliações biomecânicas das mãos de pacientes que após cirurgias, acidentes ou patologias osteomioarticulares, tiveram redução na sua capacidade de exercer forças com as mãos. O objetivo deste trabalho foi a implementação de um dinamômetro biomédico ergonômico, de fácil utilização, com capacidade de comunicação com diferentes tipos de dispositivos móveis, como smartphones e tablets. O projeto realizado se constitui no aprimoramento de duas versões anteriores de dinamômetros implementadas no Laboratório de Instrumentação Eletrônica e Engenharia Biomédica da UNESP –Campus de Ilha Solteira. Testes em voluntários utilizando o dinamômetro desenvolvido e um dinamômetro comercial da marca SAEHAN, e posterior análise estatística dos dados revelam uma excelente confiabilidade intra-examinador para o dinamômetro desenvolvido, com coeficiente de correlação intraclasse médio de 0,95 entre os diferentes grupos analisados, e de 0,98 para o dinamômetro SAEHAN. A análise estatística revela também uma excelente confiabilidade concorrente para as medidas realizadas pelo dinamômetro desenvolvido em relação às do dinamômetro SAEHAN, sendo de 0,93 para mãos dominantes e 0,92 para mãos não dominantes. Assim, o dinamômetro desenvolvido é confiável, válido e comparável com o dinamômetro SAEHAN quando adotados os mesmos procedimentos de exame de preensão palmar.
Biomedical dynamometers are equipment used to measure forces exerted by the hands. Using this type of equipment, it is possible to perform biomechanical evaluations of the hands of patients that after surgery, accidents or diseases have had a reduction in the ability to exert force with their hands. The objective of this work was the implementation of an ergonomic biomedical dynamometer, easy to use, with ability to communicate with different types of mobile devices such as smartphones and tablets. The project carried out constitutes the improvement of two previous dynamometers versions implemented in the Electronic Instrumentation and Biomedical Engineering Laboratory at UNESP - Ilha Solteira. Volunteer tests using the developed dynamometer and a commercial SAEHAN dynamometer, and subsequent statistical analysis of the data revealed an excellent intra-examiner reliability for the developed dynamometer, a mean of 0,95 among different groups analyzed, and a mean of 0,98 for the SAEHAN dynamometer. The statistical analysis also revealed an excellent concurrent reliability for the measurements performed by the dynamometer developed in relation to those of the SAEHAN dynamometer, being 0,93 for dominant hands and 0,92 for non-dominant hands. Thus, the developed dynamometer is reliable, valid and comparable with the SAEHAN dynamometer when the same grip strength examination procedures were adopted.
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Jeelani, Mohammad Imraan. "The development of a human centered methodology for the identification of communication needs and the assessment of hand-held communication devices used to support communication flow in high consequence emergency management." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4942.
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A paper based survey was conducted, in which 31 Bahamian emergency management officials answered demographic, skill level, and functionality questions related to the use of hand-held communication devices to support emergency related activities including those directed toward preparation, mitigation, and response. These emergency management officials provided invaluable input based upon their practical experience in high consequence emergency situations. 155 Bahamian civilians participated in a similar survey which was a reduced version of the survey used for emergency management officials. Both surveys included questions in regard to the background information of the participants, previous handheld communication experience, device performance, and what other communication devices were being utilized. The surveys were analyzed using statistical methods of categorical data analysis and correlations were identified. Several communication needs which were categorized as infrastructure, organizational, and equipment needs as well as a hierarchy of device selection factors in regard to the use of hand-held communication devices during emergency management situations were identified. The analytic hierarchy process (AHP) was used in order to determine the priorities of each of the identified device selection factors and a model for the selection of hand-held communication devices used to support communication flow in high consequence emergency management was proposed.; Communication has been identified as a critical component in the outcome of emergency response. Post-mortems of "what went wrong" in disaster responses often point toward breakdown in communication between first responders, those directing rescue efforts, and the general population as one of the primary impediments to rendering timely aid and communicating adequate safety and weather information. Due to the high resilience, relatively low costs, and advanced features of modern hand-held communication devices, these devices are in a position to drastically improve communication flow during emergency management situations. Due to the lack of official implementation of these devices and the lack of the establishment of standard guidelines for device selection, the use of hand-held communication devices in emergency management is yet to be optimized. Island nations such as the Bahamas, which face unique challenges in regard to emergency management due to geographical, infrastructural, political, and cultural hurdles which are found in the region, can especially benefit from the optimized implementation of hand-held communication devices in emergency management. This study examined current emergency response procedures in The Bahamas, created a baseline for the current use of hand-held communication devices by Bahamian emergency management officials and civilians, identified the communication needs of Bahamian emergency management officials and civilians, and proposed a model for the selection of hand-held communication devices based upon human factors principals and focusing on user priorities. This study began with a focus group interview which included 14 Bahamian emergency management officials in order to gain an understanding of current Bahamian emergency response procedures and the communication challenges faced by emergency management officials during high consequence emergencies.ID: 029808904; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Thesis (M.S.)--University of Central Florida, 2011.; Includes bibliographical references (p. 118-119).
M.S.
Masters
Industrial Engineering and Management Systems
Engineering and Computer Science
Industrial Engineering
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Paulo, Danilo Pazian. "Desenvolvimento de um dinamômetro biomédico ergonômico com comunicação com dispositivos móveis /." Ilha Solteira, 2017. http://hdl.handle.net/11449/151081.
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Orientador: Aparecido Augusto de CarvalhoResumo: Dinamômetros biomédicos são equipamentos utilizados para medir forças exercidas pelas mãos. Com o uso deste tipo de equipamento, é possível realizar avaliações biomecânicas das mãos de pacientes que após cirurgias, acidentes ou patologias osteomioarticulares, tiveram redução na sua capacidade de exercer forças com as mãos. O objetivo deste trabalho foi a implementação de um dinamômetro biomédico ergonômico, de fácil utilização, com capacidade de comunicação com diferentes tipos de dispositivos móveis, como smartphones e tablets. O projeto realizado se constitui no aprimoramento de duas versões anteriores de dinamômetros implementadas no Laboratório de Instrumentação Eletrônica e Engenharia Biomédica da UNESP –Campus de Ilha Solteira. Testes em voluntários utilizando o dinamômetro desenvolvido e um dinamômetro comercial da marca SAEHAN, e posterior análise estatística dos dados revelam uma excelente confiabilidade intra-examinador para o dinamômetro desenvolvido, com coeficiente de correlação intraclasse médio de 0,95 entre os diferentes grupos analisados, e de 0,98 para o dinamômetro SAEHAN. A análise estatística revela também uma excelente confiabilidade concorrente para as medidas realizadas pelo dinamômetro desenvolvido em relação às do dinamômetro SAEHAN, sendo de 0,93 para mãos dominantes e 0,92 para mãos não dominantes. Assim, o dinamômetro desenvolvido é confiável, válido e comparável com o dinamômetro SAEHAN quando adotados os mesmos procedimentos de exame de preensão... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Biomedical dynamometers are equipment used to measure forces exerted by the hands. Using this type of equipment, it is possible to perform biomechanical evaluations of the hands of patients that after surgery, accidents or diseases have had a reduction in the ability to exert force with their hands. The objective of this work was the implementation of an ergonomic biomedical dynamometer, easy to use, with ability to communicate with different types of mobile devices such as smartphones and tablets. The project carried out constitutes the improvement of two previous dynamometers versions implemented in the Electronic Instrumentation and Biomedical Engineering Laboratory at UNESP - Ilha Solteira. Volunteer tests using the developed dynamometer and a commercial SAEHAN dynamometer, and subsequent statistical analysis of the data revealed an excellent intra-examiner reliability for the developed dynamometer, a mean of 0,95 among different groups analyzed, and a mean of 0,98 for the SAEHAN dynamometer. The statistical analysis also revealed an excellent concurrent reliability for the measurements performed by the dynamometer developed in relation to those of the SAEHAN dynamometer, being 0,93 for dominant hands and 0,92 for non-dominant hands. Thus, the developed dynamometer is reliable, valid and comparable with the SAEHAN dynamometer when the same grip strength examination procedures were adopted.
Mestre
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Gan, Hock Chye. "Using multi-modal bio-digital technologies to support the assessment of cognitive abilities of children with physical and neurological impairments." Thesis, University of Hertfordshire, 2015. http://hdl.handle.net/2299/15749.
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Current studies done using a learning test for children have problems as they only make evaluations of Physically and Neurologically Impaired (PNI) children who can succeed in the test and can be considered as a PASS/FAIL test. This pilot study takes a holistic view of cognitive testing of PNI children using a user-test-device triad model and provides a framework using non-PNI children and adults as controls. Comparisons using adapted off-the-shelf novel interfaces to the computer, in particular, an Electroencephalograph (EEG) head-set, an eye-tracker and a head-tracker and a common mouse were carried out. In addition, two novel multi-modal technologies were developed based on the use of brain-waves and eye-tracking as well as head-tracking technologies to support the study. The devices were used on three tests with increasing cognitive complexity. A self-developed measure based on success streaks (consecutive outcomes) was introduced to improve evaluations of PNI children. A theoretical model regarding a fit of ability to devices was initially setup and finally modified to fit the view of the empirical model that emerged from the outcomes of the study. Results suggest that while multi-modal technologies can address weaknesses of the individual component modes, a compromise is made between the user’s ability for multi-tasking between the modes and the benefits of a multi-modal device but the sample size is very small. Results also show children failing a test with a mouse but passing it subsequently when direct communication is used suggesting that a device can affect a test for children who are of a developing age. This study provides a framework for a more meaningful conversation between educational psychologists as well as other professionals and PNI parents because it provides more discrimination of outcomes in cognitive tests for PNI children. The framework provides a vehicle that addresses scientifically the concerns of parents and schools.
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Olson, Karen. "Comparison of two treatments for fingertip amputation : a retrospective cohort study." [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002164.
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Standefer, Katherine. "Assessment in the Hands-On Science Classroom: A Qualitative Study." [Johnson City, Tenn. : East Tennessee State University], 2003. https://dc.etsu.edu/etd/736.
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Moravej, Hans. "Vibration-based probabilistic model updating of civil structures using structural health monitoring techniques." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/203653/1/Hans%20Moravej%20Thesis.pdf.
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Information extracted from monitored data is susceptible to uncertainties and not reliable to be used for structural investigations. Finite element model updating (FEMU) is an accredited framework which aims to improve the accuracy of FEMs of real structures. However, FEMU faces barriers to achieving efficiency and addressing uncertainties. This study aims to develop a probabilistic approach based on Modular Bayesian approach (MBA) to address challenges in the application of FEMU. Moreover, this research proposes an integration between MBA and structural reliability analysis to assess the performance of structures during their lifespan. The feasibility of approach is demonstrated on two structures.
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Gómez, Puigpinos René Esteban. "Experimental Assessment of hang up and secondary fragmentation for block caving." Tesis, Universidad de Chile, 2015. http://repositorio.uchile.cl/handle/2250/137096.
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Magíster en MineríaEn minería es cada vez más recurrente el desarrollo de operaciones a mayores profundidades. En particular, en la minería subterránea masiva explotada por el método de Block/Panel caving esto genera como consecuencia grandes alturas de columna de material quebrado, desarrollando altos esfuerzos producto de la sobrecarga. Es así que surge la presente investigación, con el propósito de estudiar el impacto de mayores esfuerzos en la extracción y fragmentación del mineral El estudio se centra en dos áreas de interés: la fragmentación secundaria y los eventos de colgadura. Estos tópicos son analizados a través del modelamiento físico, para el cual es utilizado un modelo de flujo confinado ubicado en el Laboratorio de Block Caving de la Universidad de Chile. Este modelo emula la extracción desde una batea a través de un sistema LHD. Los experimentos desarrollados consideran mineral el cual fue previamente preparado para representar dos curvas de fragmentación primaria. Dentro de las variables estudiadas se encuentran: el tamaño de los fragmentos, la carga vertical y la humedad; para las cuales se considera la extracción desde un punto de extracción y desde ambos puntos de la batea. Al evaluar los eventos de colgaduras, los resultados experimentales muestran que una mayor relación entre la abertura de extracción y el tamaño medio de partícula mejora la capacidad de flujo del material, así como la extracción desde ambos puntos de extracción también favorece la aparición de una menor cantidad de eventos, disminuyendo los eventos de colgadura en entre un 20 y 30 porciento al compararlos con la extracción desde un solo punto de la batea. Mientras que al aumentar la carga vertical y la humedad, incrementa el número de colgaduras generadas. También se observa que la altura de las colgaduras incrementa con la carga vertical en mineral seco. A través de los resultados obtenidos, fue posible desarrollar un gráfico para estimar la frecuencia de colgaduras el cual es validado con datos de terreno de diversas operaciones mineras. Por otra parte, es presentado un modelo de conminución con base experimental, el cual permite estimar la fragmentación secundaria a diferentes alturas de columna extraída. A diferencia de otros modelos de predicción de fragmentación secundaria, este modelo considera el esfuerzo vertical asociado a la sobrecarga de material quebrado. Finalmente, el modelo propuesto es comparado con la fragmentación generada en operaciones de block caving mostrando la capacidad del modelo planteado para modelar las curvas de fragmentación. Los resultados obtenidos en cuanto a colgaduras y predicción de la fragmentación secundaria, tienen aplicación en el diseño y planificación en minería de caving, a través del gráfico de estimación de colgaduras y el modelo de conminución presentados.
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Alnehem, Isabell. "Assessment on Groundwater Contamination from a Former Hard Chromium Plating Site in Iggesund." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-52022.
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Before the persistent and toxicological properties of perfluoroalkyl and polyfluoroalkyl substances (PFASs) were known they were used worldwide. The thermal and chemical stability from the carbon-fluorine bond makes these substances desirable for industrial applications. One particular PFAS that have received much attention is perfluorooctanesulfonic acid (PFOS) which is included in the Stockholm convention. Analyses have detected PFASs, especially the ones with longer carbon chain, in the environment, wildlife and humans so replacements are being searched for. This study investigates groundwater around a former hard chromium plating site, which is one of the registered exceptions where PFOS still is used. Five different located sampling points were collected and analyzed from this site in Iggesund, which is in the northern parts of Sweden. The substances analyzed for were thirteen perfluorinated carboxylic acids (PFCAs: C4-C14, C16 and C18), five perfluorinated sulfonic acids (PFSAs: C4, C6, C8 and C10) and 6:2 fluorotelomer sulfonate (6:2 FTS). The 6:2 telomer substances is being used as a replacement for similar compounds with longer carbon chains, but are believed to undergo biotransformation to persistent alkyl acids like perfluorohexanoic acid (PFHxA) in the environment. Solid phase extraction was performed on 500 mL filtered groundwater with and the concentrated samples were analyzed on an Ultra Performance Liquid Chromatography (UPLC), tandem mass spectrometer. The glass microfiber filters used for filtrating the groundwater were analyzed for particle bound PFASs. Results from the water extraction analysis showed eight detected PFAS, with PFOS as the major contributor (72 - 9600 ng/L). The PFOS concentrations differs substantially between the five groundwater samples where the two sampling points located south of the facility, and closest to the actual hard chromium plating, were clearly higher than the other three. Two other substances detected in high concentration were perfluorobutanesulfonic acid (PFBuS), 8-1550 ng/L, and perfluorohexanesulfonic acid (PFHxS), 18-140 ng/L which can be produced as an impurity during the production of PFOS. PFCAs in all samples were detected in lower concentrations (1-25 ng/L). Additional to the PFAS analysis, the groundwater was also measured for chromium since the carcinogenic hexavalent form is used in the chromic acid bath during hard chromium plating. In the same two samples that had the highest PFAS concentration, chromium was found in high concentration, 34900-44800 μg/L. These result indicates that the chromic acid baths is the source for the elevated concentrations found in the groundwater. If the facilities are left to deteriorate it will lead to continuously spreading of chromium and the highly water soluble PFASs downstream to Iggesundså which is of concern for the environment and water living organisms.
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Larson, Stephen. "Evaluating multiple factors that can be used as skill predictors in software proficiency." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/245.
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In this ubiquitous computing society, most students are required to be proficient in computer skills to compete in today’s global job market. These computer skills usually include skills in business productivity applications. Assessing those skills is normally accomplished by hands-on skills exams, which can become onerous and costly. This study explored whether a combination of a computer self-efficacy (CSE) survey, cognitive questions, and skill-based questions could indeed be a valid alternative to a hands-on skills exam. The findings of this study indicate some types of questions may be better predictors of performance on the hands-on skills exam, and some combinations of survey items and questions may be viable alternatives to hands-on skills exams. As a result of this research, schools and companies could adapt these indirect and direct assessments to their situation to perform their own study or assess the skills of their students/employees.