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Dissertations / Theses on the topic 'Leg'

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Published: 4 June 2021
Last updated: 29 July 2024

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1

Martin, James Charles. "Maximum neuromuscular power across the lifespan /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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2

Rubensson, Monica, and Maria Degaardt. "Leg SSk." Thesis, Malmö högskola, Fakulteten för hälsa och samhälle (HS), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-26185.

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Syftet med denna studie var att göra en bedömning av den postoperativa förloppet i hemmet hos dagkirurgiska ljumskbråcksopererade patienter. Data insamlade med hjälp av högstrukturerade telefonintervjuer. En enkät med standardiserade frågor och ikryssbara svarsalternativ som kommer har använts vid telefonintervjuerna.Resultaten från de 52 intervjuerna visade att de flesta patienter inte överskred Numerical Rating Scale (NRS) 3 i vila eller rörelse dag ett. På dag tre hade de flesta mer smärta vid rörelse än dag ett. De flesta patienterna följde ordinationen de fick av läkaren avseende smärtstillande tabletter. Generellt sett visade studien på få postoperativa komplikationer och hög tillfredsställelse ur operationssynpunkt hos patienterna.
The purpose of this study was to evaluate the post-operative progress for one-day surgical inguinal hernia patients. Data was collected using structured telephone interviews three days after surgery. A questionnaire with standardized questions and multiple-choice response options was used.The results from the 52 interviews showed that most patients did not exceed Numerical Rating Scale (NRS) 3 day one when at rest or moving around. On day three most patients had more pain while moving than day 1. Most patients complied with the doctor’s prescription of painkillers. Generally the follow-up study showed the patients had few complications and felt high satisfaction post surgery.
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Bui, Ut Thi. "Risk factors associated with infection in patients with chronic leg ulcers." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/134477/14/Ut_Thi_Bui_Thesis.pdf.

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This thesis provides the most comprehensive information available to date, about the presentation of infection, and factors associated with an increased likelihood of developing infection in chronic leg ulcers. These factors include comorbid conditions, medications, psychosocial factors, and local lower-limb factors. A conceptual framework, named Factors for Infection in Chronic Leg Ulcers or FICLUs, was also constructed, which can be used to guide future research in wounds. The thesis recommends a holistic approach when assessing patients with chronic leg ulcers and early interventions to prevent infection.
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4

Ng, Fai-hung Patrick. "The predictive power of ankle brachial pressure index to limb status in patients undergone lower limb revascularisation." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23621485.

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5

Klimienė, Asta. "Kineziterapijos efektyvumo įvertinimas vaikams, sergantiems Leg-Kalve-Perteso liga." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050517_090204-64470.

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The aim of the present study was to evaluate the efficacy of kinesitherapy applied to children presented with Legg-Calve-Perthes disease during rehabilitation period. The study was performed at V. Tumenienes Children Rehabilitation Center in Kaunas. 22 children (boys) were examined. The efficacy of kinesitherapy was assessed using movement range and leg musculature extent groups’ measurements. The movement function was evaluated using modified Keitel index. The results showed that the movement range of the affected leg has improved in approximately one year during which kinesitherapy procedures were applied (p<0.0001). Statistically significant difference was observed. During treatment, slight changes regarding calf size were observed (p<0.05). The size of the thigh and the calf increased after kinesitherapy course (p<0.0001). Keitel index raised up to 67.9 ± 4.2% (p<0.0001) at the end of the treatment course. Thus, the movement therapy provided at V. Tumenienes Children Rehabilitation Center was effective.
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6

Sahin, Birnur. "DEVA : Treating Chroinic Leg Ulcers." Thesis, Umeå universitet, Designhögskolan vid Umeå universitet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-172613.

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An ulcer is an open wound that remains unhealed even after weeks of treatment. These types of wounds require a long process of treatment due to other underlying health problems. Having an unhealing, painful and often infected wound decreases patients’ life quality significantly. The treatment includes using wound dressing applied by nurses, to protect the wound from infections, collect exudate and provide a closed and sterile environment. During a treatment, which could last for months, patients experience a lot of emotional and physical challenges. Deva is a design concept proposing the use of smart sensors in wound care treatment in a way that it will improve the communication between patients and nurses, by providing information and guidance. The ecosystem consists of a smart wound patch that will turn any wound dressing today into a “smart” one, an electrostimulation therapy sock and digital platforms where the information will be available. This way information on the wound status will be available for the patient, their family members or caregivers and the nurses.This project has been developed by interviewing nurses and wound care professionals from Turkey, Sweden and Denmark. The insights reflect the situation and the healthcare system in these countries and a wound care treatment journey might differ in other settings.
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7

Carson, Jo. "Pulling My Leg: Story." Digital Commons @ East Tennessee State University, 1990. http://amzn.com/0531058174.

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8

Roaldsen, Kirsti Skavberg. "Factors influencing physical activity in patients with venous leg ulcer." Stockholm : Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, 2009. http://diss.kib.ki.se/2009/978-91-7409-661-3/.

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9

Jaiswal, Nitin. "Stability Analysis Of Leg Configurations For Bipedal Running." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1566828354395399.

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10

Ludke, Andrew William. "Perceived Submaximal Leg Extension Forces of Young Adult Males." Thesis, University of North Texas, 2001. https://digital.library.unt.edu/ark:/67531/metadc2840/.

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The purpose was to examine actual force (AF) productions of males for accuracy during leg extensions when given a random desired force (DF) ranging from 10-90% of maximal force (MF). Thirty males ranging from 18 to 30 years of age (M = 21.99 + 3.04), who had no previous experience with the test equipment, went through 9 randomly ordered submaximal efforts followed by a maximal effort. Correlations between AF and DF were high (r > .79) and test-retest was consistent between AF (r = .87) and MF (r = .90). Participants consistently undershot DF on both test and retest from 20-90% and overshot DF only at 10%. Power functions revealed exponents of less than 1, indicating that AF grows slower then DF for both test .70 (.95 CI = .63 - .77) and retest .66 (.95 CI = .60 - .73). The results replicate a prior study by Jackson, Martin, Koziris, Ludtke, and Dishman (2001) that used incremental rather than random increases in DF.
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11

Lee, Stuart M. C. "The elevation of metabolic rate after combined arm-and-leg versus leg-only exercise." Thesis, Virginia Tech, 1992. http://hdl.handle.net/10919/40646.

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Previous investigations have shown that metabolic rate remains elevated for a period of time after the cessation of exercise. While other investigations have examined the effect of intensity and duration of prior exercise, the purpose of this study was to examine the effect of exercise mode and the employment of different muscle masses on the elevation of post-exercise metabolic rate (EPOC). Fifteen non-smoking, physically active females (21.1 ± 1.3 years; 21.4 ± 4.6 %BF) volunteered for this investigation. Each subject completed a graded maximal exercise test (GXT) on the Monark 880 cycle ergometer (Max HR=192.5 ± 2.3 bpm; Max V02=2.68 ± O.lll/min; Max RPE=19.5 ± 0.1) from which a heart rate corresponding to 70% V02max was chosen. Subjects then exercised on either a Monark 880 cycle ergometer (LE) or the Schwinn Airdyne (ALE) in random order for thirty minutes at the prescribed heart rate (HR). Exercise bouts were separated from each other and from the GXT by at least 48 hours. Workloads were monitored in five minute intervals and adjusted to maintain the appropriate heart rate. The mean exercise heart rates were 172.5 ± 2.8 bpm for the LE bout and 170.0 ± 2.8 bpm for the ALE bout, respectively. Two-way repeated measures ANOVA revealed no significant difference \r >0.05) between exercise treatments in terms of HR or V02. Repeated measures trend analYSis revealed no significant difference in either EPOC or post-exercise heart rate between the two treatments across a one-hour seated recovery period. There was also no significant difference (p>O.05) in excess post-exercise caloric expenditure during the recovery period as a result of the different exercise treatments. Therefore, this suggests that neither exercise modality nor the distribution of work over a larger muscle mass had an effect on EPOC when exercise intensity and duration were held constant.


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Flick, Kevin Charles. "Biomechanics and dynamics of turning /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/5221.

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13

Straub, H. J. Robert. "Überprüfung der Validität eines funktionell kurzen Beines auf der Seite der Ilium-Subluxation." Master's thesis, Dresden International University, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-236518.

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Die Anwendung von Beinlängentests spielt in der Chiropraktik als auch in der manuellen Medizin eine große Rolle. In den meisten Fällen ist beschrieben, dass Beinlängendifferenzen durch Subluxationen im Beckengürtel entstehen (Ausnahmen werden in Punkt 5.4 dargelegt). Diese These zu überprüfen und mit eigenen Erfahrungen abzugleichen, ist dem Autor schon seit geraumer Zeit ein Anliegen. Es ist auch zu klären, welche Art der Beckensubluxation zur Beinlängendifferenz (BLD) führt. Die Voraussetzungen für diese Untersuchung sind in der eigenen Praxis des Autors, im Haus der Chiropraktik gegeben, da alle Patienten ausschließlich nach Vorlage von Röntgenbildern behandelt werden. Diese werden in dem dafür entwickelten Programm X-Ray Solution vermessen und gespeichert. In der Sacro Occipital Technik (SOT) von Dr. M. B. DeJarnette DC, der Aktivator Technik, als auch der Thompson Terminal Point Technik (TTPT) wird auf der Seite des kurzen Beines von einem PI oder Ex Ilium ausgegangen. Als PI Ilium wird eine Beckenverschiebung nach posterior und inferior beschrieben. Referenzpunkt dafür ist die Spina iliaca posterior superior (SIPS). Verschiebt sich diese nach extern, so wird diese Subluxation als Ex Ilium bezeichnet. Je nach Technik werden aber vorher die Halswirbelsäule als Verursacher sowie eine bestimmte Art von Knie- und Fuß-Subluxationspattern ausgeschlossen.
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14

Books, Gregory D. (Gregory Douglas). "Effects of Endurance Intensity and Rest Interval on Subsequent Strength Performance." Thesis, University of North Texas, 1996. https://digital.library.unt.edu/ark:/67531/metadc278409/.

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The purpose of this study was to examine the acute effects of cycling exercise at different intensities and rest intervals on strength performance. Ten males, engaged in concurrent training for at least one month prior to testing, comprised the subject group for this study. Results show only leg press torque and leg press work to be decreased after cardiorespiratory exercise of moderate intensity. Leg extension average power, chest press torque, chest press power, and chest press work after cycling were not decreased from pre-exercise values. No significant effects were found for exercise intensity, testing times, or intensity by testing times. These results indicate that lower body strength is decreased by cycling and that one hour is not sufficient to restore leg strength.
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Carvey, Andrew W. (Andrew Williams) 1980. "A metabolically efficient leg brace." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/42300.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006.
Includes bibliographical references (leaves 106-108).
Locomotion assistive devices can be broadly classified as either being passive or powered. Both have been created to aid in the leg's generation of a ground reaction force which supports the torso during locomotion, yet their inherent design has limited their functional growth to date. While many differing gait simulations have demonstrated stable solutions for lossless gait cycles, passive orthoses only diminish the user's impediment, and though powered gait exoskeletons can augment strength and endurance, they are limited by their energy demanding actuators. In response to these two extremes, an energy efficient locomotion assist device was developed from the basis of lossless gait models that did not require external power, and augmented locomotion by harvesting the inherent energy associated with the gait cycle. The simplest anthropomorphic leg can be modeled with a peg-leg shank, a knee, a thigh and a point mass for the head, arms and torso. Using a tuned non-linear hardening torsion spring at the knee joint, the torso support that is required between the ground and pelvis for lossless gait simulations can be generated; allowing the close physical realization of the theoretical. It was found that a single torsion spring can generate the leg thrusts necessary for a realistic range of walking and running gait velocities without the addition of any external power. While frictional losses do inhibit the locomotion assist device's efficiency, since the device functions in parallel with the user's leg, any losses can be supplemented with minimal muscular activity. These results give strong indication that a new avenue of gait assistive and gait augmenting devices that require minimal actuation energy is feasible.
by Andrew Williams Carvey.
S.M.
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16

Williams, Katherine. "Neuromuscular stimulation of the leg." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/49202.

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Disorders of the circulation of the leg are a problem in both the developed and developing world, and are a major cause of morbidity and mortality. The incidence of diabetes is increasing, the population is ageing, and resources to treat vascular disease are finite. Exercise can augment the circulation, and has many beneficial effects on the cardiovascular system as a whole. Electrical stimulation of the muscles of the leg may work in a similar fashion to both voluntary contraction and external muscle compression, in that venous return is increased, and symptoms of vascular disease are reduced. This body of work aims to delineate the clinical problems to which this solution should be applied, carry out preliminary testing and pilot trials to assess feasibility and effect size of electrical therapy, and to design a device which best addresses the needs of the identified population. Hypothesis Neuromuscular electrical stimulation (NMES) of the leg increases the circulatory parameters of the leg, and treatment with NMES over time will alleviate clinical symptoms of vascular disease and improve quality of life. Methods The incidence of medical morbidity related to vascular disease was explored, and target populations requiring development of current inadequate management strategies were identified. Neuromuscular electrical stimulation has been defined, and the history of the use of electrical therapies has been reviewed. Bench testing and small trials were conducted to evaluate the physiological impact of neuromuscular electrical stimulation device usage, and how they compare to current standards of non-pharmaceutical and non-operative medical care (e.g. graduated compression, intermittent pneumatic compression). Clinical trials in patient groups of interest were instituted, looking specifically at chronic venous disease, peripheral arterial disease, and diabetic vascular complications. Results Flow rates and speed of blood in the femoral vessels increased in both healthy subjects and those with vascular disease. Those patients with severe diabetic foot complications were more resistant to flow changes. Fluximetry measurements taken from the foot increased with NMES device use. Improvements in functional outcomes were shown, particularly in the management of claudication and wound healing in the diabetic foot. Quality of life measures improved but on the whole were not statistically significant. Conclusions The judicious use of NMES in patients with vascular disease could prove useful, especially in the setting of multiple comorbidities and polypharmacy. The risk profile is very low, especially when compared to anticoagulants or surgery. The health economic benefits are not known, but future studies could use the data in this thesis to power future trials. The biological effects of device usage, both long and short term have not been explored, and may be amenable to testing in further trials in humans.
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17

Vivier, Lincky Elmé. "One leg at a time." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1012945.

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This collection of poems explores the boundaries between certainty and uncertainty, between the desire for meaning and the destabilisation of meaning. The content encompasses everyday life, love and loss, and the ambiguities are reflected in the forms used, so that, for instance, the linear continuity of narrative and the musicality of the lyric may be juxtaposed with the fragmented and imagistic leaps of the associative poem.
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18

吳煇雄 and Fai-hung Patrick Ng. "The predictive power of ankle brachial pressure index to limb status in patients undergone lower limb revascularisation." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31970047.

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19

Johnson, Shelley. "Biomechanical analysis of a 'heavy-load eccentric calf muscle' rehabilitation exercise in persons with Achilles tendinosis a dissertation submitted to Auckland University of Technology in partial fulfilment of the requirements for the degree of Master of Health Science (MHSc), 2008 /." Click here to access this resource online Click here to access this resource online, 2008. http://aut.researchgateway.ac.nz/handle/10292/536.

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20

Wong, Yu-lok. "Differential changes in lumbar muscle activity and paraspinal stiffness during asymmetrical leg movement." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43572376.

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Johnson, Dace. "Lower limb rotational profiles of young premature born children /." [St. Lucia, Qld. : s.n.], 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16641.pdf.

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22

Goddard-Marshall, Ayana A. "Characterization of the activity of the involuntary calf muscle pump." Diss., Online access via UMI:, 2009.

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Thesis (Ph. D.)--State University of New York at Binghamton, Thomas J. Watson School of Engineering and Applied Science, Department of Bioengineering, Biomedical Engineering, 2009.
Includes bibliographical references.
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23

Dickinson, Jared M. "A method to study in vivo protein synthesis in slow and fast twitch muscle fibers and initial measurements in humans." Muncie, Ind. : Ball State University, 2009. http://cardinalscholar.bsu.edu/773.

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Cruickshank, John Johnston. "Morphometric and radiographic characterization of leg disorders in broiler chickens." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24601.

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The objective of this study was to investigate the effects of cage density and excess vitamin D₃ on the incidence and severity of leg abnormalities in broiler chickens. In addition, sequential morphometric and radiographic characteristics of leg bone development were described in normal and abnormal broilers in an attempt to develop a pattern recognition for leg abnormalities in poultry. Twisted leg, characterized by a progressive medial (varus) or lateral (valgus) deviation of the distal tibiae was the predominant leg abnormality observed. Lateral deviations were more common than medial deviations (92% and 8%, repectively) and it occurred equally on the right and left leg. The incidence of twisted leg was considerably higher in cages than on litter (21% vs 4%, respectively). High density and excess dietary vitamin D₃ resulted in a significant increase in the incidence of twisted leg. Differences in incidence could not be explained through differences in body weight or feed consumption. However, broilers fed the excess vitamin D₃ consumed more but gained less body weight, suggesting a metabolic stress may have been involved. High density appeared to increase the severity of the disorders, while excess vitamin D₃ had no effect on severity. Morphometric and radiographic comparisons of tibiae from normal broilers and those with twisted leg suggested that the development of twisted leg may be related to a structural abnormality in the distal tibiae; namely shallow distal condyle grooves. Changes in tibiae morphology associated with the progression of the disorder appeared as functional adaptations to the deformation rather than the primary cause of the bone deviations themselves. Sequential radiography of tibae from clinically normal broilers revealed a high incidence of tibial dyschondro-plasia in the proximal metaphyses at 3, 4 and 5 weeks (60%, 20% and 20%, respectively). It was concluded that tibial dyschondroplasia may be more common than it is realized.
Land and Food Systems, Faculty of
Graduate
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Buisson, Yoann. "The impact of surgery to relieve leg pain on cortical control of trunk and leg muscles." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/30662.

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All current chronic low back pain (LBP) treatments have variable long-term efficacy. Changes in the central nervous system pathways controlling trunk and leg muscles (T&L) in LBP have been reported, and this thesis investigated whether surgery (n=24) or conservative management (spinal injections [SIs;n=12] or no treatment [NT;n=18]), impact upon these changes in the long term. 19 healthy controls and 54 LBP patients were recruited. 45 of the LBP patients also had leg pain distal to the knee (LBPLP), 12 of which had radicular pain/radiculopathy at L5 and 12 at S1. Transcranial magnetic stimulation (TMS) was used to evoke a number of outcome measures in electromyographic activity. The first long term TMS T&L reliability study established suitable parameters to assess corticomotor excitability (CE) (i.e. motor evoked potential (MEP) threshold (MTh)) and intracortical inhibition (ICI: i.e. the cortical silent period (cSP)) on 4 occasions, prior and up to 1 year following treatment. LBPLP patients had pain-lateralised and markedly prolonged leg cSPs, which, unlike in SI patients, were gradually normalised in high functional responders to surgery. Significant reductions in leg MThs occurred in high functional responders to surgery at 6 weeks, whilst further reductions occurred in those with excellent leg pain outcome. Tibialis anterior was exclusively sensitive to L5 group ICI&CE changes. By contrast, back muscles in LBP had markedly elevated MTh and altered MEP recruitment; with longer MEPs and more moderate bilaterally prolonged cSPs. Patients who improved had more abnormal baseline CE and ICI. These studies establish patho-anatomically specific (side, root level and likely pathway-specific) cortical changes in leg pain/radiculopathy, which are reversible by successful surgery. More significantly, the distinct ICI and CE profiles found in back and leg muscles may eventually be useful in determining which patients are likely to benefit from surgical intervention.
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Ridehalgh, Colette. "Straight Leg Raise treatment for individuals with spinally referred leg pain : exploring characteristics that influence outcome." Thesis, University of Brighton, 2014. https://research.brighton.ac.uk/en/studentTheses/31c95cf6-9ac3-4eeb-9999-3efee1b0cf4b.

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The primary aim of this thesis was to assess the differences in response to a 3 x 1 minute SLR tensioner treatment between 3 sub-groups of individuals with spinally referred leg pain (somatic referred pain, radicular pain and radlculopathy). · Preliminary studies of the 3 outcome measures were required prior to the main study. These were: validity ofthe method to measure nerve excursion using ultrasound imaging (VI) which was assessed in pig nerves; repeatability of sciatic nerve excursion during a side-lying modified SLR measured with UI in the posterior thigh, and repeatability of pressure pain thresholds (PPT) and vibration thresholds (VT). The 3 outcome measures were repeatable and the sciatic nerve excursion technique was valid. Sixty seven participants were placed into one of the 3 sub-groups and further assessed to identify the presence of central sensitisation (CS). Five questionnaires were completed by participants to assess disability and psychological characteristics. Sciatic nerve excursion, PPT and VT were measured prior to and after a 3 x 1 minute SLR tensioner technique. No significant differences (p>O.05) were found for any of the 3 outcome measures between the 3 groups. Slight improvements in VT were seen in the radiculopathy group after treatment, which were not significant, but indicated that even in individuals with conduction loss, no detrimental changes to nerve conduction occurred after treatment. A varied response to nerve excursion was seen. Longitudinal nerve excursion at the posterior thigh decreased after treatment in individuals with pain below the knee; this location of pain being more common in the radiculopathy and radicular groups. The decrease in nerve excursion suggests regional changes to nerve compliance after treatment, which may have occurred at the nerve root. Since it was n.ot possible to measure nerve root excursion, these findings are speculative. Only 2 participants were identified with CS, suggesting a low prevalence of the condition in individuals with spinaUy referred leg pain. This may be-Clue to individuals with CS choosing not to participate in the study, or a limitation of the method used to identify CS. Disability and psychological factors were not significantly different at baseline between the 3 sub-groups, and were not correlated with the outcome measures. A 3 x 1 minute SLR tensioner technique in individuals with spinally referred leg pain of greater than 3 months of duration is not effective in improving pain or nerve conduction. However, it is not harmful, even in individuals with loss of nerve conduction. Changes to nerve excursion after treatment may be related to individual differences in nerve compliance, and possibly restriction of the nerve root.
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Bonfanti, L. "ONE LEG WHOLE-BODY VIBRATION EFFECTS ON MUSCULAR STRENGTH AND BALANCE ABILITY: TRAINED VS UNTRAINED LEG." Doctoral thesis, Università degli Studi di Milano, 2013. http://hdl.handle.net/2434/217723.

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Introduction Whilst exposure to vibration is traditionally regarded as perilous, recent research has focussed on potential benefits. Acute physiological responses to muscle vibration and to whole body vibration exercise are reviewed, as well as the training effects upon the musculature, bone mineral density and posture. Indeed, whole-body vibration training has recently received a lot of attention with reported enhancements of strength and power qualities in athletes. Unilateral strength training produces an increase in strength of the contralateral homologous muscle group. This process of strength transfer, known as cross education, is generally attributed to neural adaptations. It has been suggested that unilateral strength training of the free limb may assist in maintaining the functional capacity of an immobilised limb via cross education of strength. The aims of this study were to assess the effects of an 5-week periodized training program with whole-body vibration on cross education. Methods Nine healthy males (24±3,35 years; 1,76±0,04 m; 72,22±6,59 kg; 23,25±1,53 kg/m2) performed 10 training sessions on whole-body vibrations platform (Nemes; Ergotest, Rome, Italy). They were exposed to a vibration load in monopodalic half squat position at the muscles resonance frequency. Quadriceps femoris circumferences, vastus lateralis and medialis EMGs, isometric maximal voluntary contraction (MVC), vertical jump (CMJb) and balance tests were performed before and after the conditioning program on trained limb and untrained contralateral. All data were analyzed with ICC (95% CI), Wilcoxon's and Student's t-test for paired data on SPSS v.15 software, and P<0,05 was chosen as the significant rate. Results and Discussion Quadriceps femoris circumferences significantly increased after the conditioning program on trained limb and untrained contralateral (p<0,001). Mean and best values in vastus lateralis EMGs significantly increased in trained limb (p <0,05) but not in the contralateral untrained. Vastus medialis, however, did not significantly increase. All subjects significantly improved in MVC and CMJb both on trained leg (p<0,05) and untrained contralateral (p<0,05) while balance test showed significant improvements only in bipodalic (p<0,05) and monopodalic trained limb executions. Conclusions Like other studies that have analyzed whole body vibration exercises, this survey indicates that a specific vibrations protocol can improve strength and power qualities both in training limb and untrained contralateral. This data support the theory of cross-education gains in the lower limbs following unilateral strength training. Therefore, more studies are needed to analyze the performances on whole-body vibrations platform and the effectiveness of cross strength training.
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De, Ste Crox Mark Brian Amos. "The development of isokinetic leg strength." Thesis, University of Exeter, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244971.

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Tuttle, Marie S. "Microbial Bioburden in Venous Leg Ulcers." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1409912389.

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30

Schepelmann, Alexander. "Evaluation of Decentralized Reactive Swing-Leg Controllers on Powered Robotic Legs." Research Showcase @ CMU, 2016. http://repository.cmu.edu/dissertations/821.

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We present work to transfer decentralized neuromuscular control strategies of human locomotion to powered segmented robotic legs. State-of-the-art robotic locomotion control approaches, like centralized planning and tracking in fully robotic systems and predefined motion pattern replay in prosthetic systems, do not enable the dynamism and reactiveness of able-bodied humans. Animals largely realize dexterous segmented leg performance with leg-encoded biomechanics and local feedback controls that bypass central processing. A decentralized neuromuscular controller was recently developed that enables robust locomotion for a simulated multi-segmented planar humanoid. A portion of this controller was used in an active ankle-foot prosthesis to modulate ankle torque during stance, enabling level and inclined ground walking. While these results suggest that the neuromuscular controller is a promising alternative control method for both fully robotic systems and powered prostheses, it is unclear if the controller can be transferred to multi-segmented robotic legs. The goal of this thesis is to investigate the feasibility of controlling a multi-segmented robotic leg with the proposed neuromuscular control approach, which may enable robots and powered prostheses to react to locomotion disturbances dynamically and in a human-like way. Specifically, work in this thesis investigates two hypotheses. Hypothesis one posits that the proposed decentralized swing-leg controllers enable more robust foot placements into ground targets than state-of-the-art impedance controls. Hypothesis two posits that neuromuscular swing-leg control enables more human-like motion than state-of-the-art impedance control. To transfer neuromuscular controls to powered segmented robotic legs, we use a model-based design approach. The initial transfer is focused on neuromuscular swing-leg controls, important for maintaining dynamic stability of both fully robotic systems and powered prostheses in the presence of unexpected locomotion disturbances, such as trips and pushes. We first present the design of RNL, a three segment, cable-driven, antagonistically actuated robotic leg with joint compliance. The robot’s size, weight, and actuation capabilities correspond to dynamically scaled human values. Next, a highfidelity simulation of the robot is created to investigate the feasibility of transferring neuromuscular controls, pre-tune hardware gains via optimization, and serve as a benchmark for hardware experiments. An idealized version of the swing-leg controller with mono-articular actuation, as well as the neuromuscular interpretation of this controller with multi-articular actuation is then transferred to RNL and evaluated with foot placement experiments. The results suggest that the proposed swing-leg controllers can accurately regulate foot placement of robotic legs during undisturbed and disturbed motions. Compared to impedance control, the proposed controls achieve foot placements over a range of ground targets with a single set of gains, which make them attractive candidates for regulating the motion of legged robots and prostheses in the real-world. Furthermore, the ankle trajectory traced out by the robot under neuromuscular control is more human-like than the trajectories traced out under the proposed idealized control and impedance control. In parallel to this control transfer, a synthesis method for creating compact nonlinear springs with user-defined torque-deflection profiles is presented to explore methods for improving RNL’s series elastic actuators. The springs use rubber as their elastic element, which, while enabling a compact spring design, introduce viscoelastic behavior in the spring that needs to be accounted for with additional control. To accurately estimate force developed in the rubber, an empirically characterized constitutive rubber model is developed and integrated into the series elastic actuator controller used by the RNL test platforms. Benchtop experiments show that in conjunction with an observer, the nonlinear spring prototype achieves desired behavior at actuation frequencies up to 2 Hz, after which spring behavior degrades due to rubber hysteresis. These results show that while the presented methodology is capable of realizing compact nonlinear springs, careful rubber selection that mitigates viscoelastic behavior is necessary during the spring design process.
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31

Cronvall, Anna, and Maria Elg. "Distriktssköterskors reflektioner kring att arbeta med kroniska bensår : en intervjustudie." Thesis, Högskolan i Gävle, Akademin för hälsa och arbetsliv, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-14897.

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Sammanfattning Syftet med studien var att beskriva distriktssköterskors reflektioner kring att arbeta med kroniska bensår. Studien genomfördes som en semistrukturerad intervjustudie och hade deskriptiv design. Totalt sexton distriktssköterskor intervjuades, åtta distriktssköterskor med landstinget som arbetsgivare och åtta distriktssköterskor med kommunal arbetsgivare. Materialet analyserades med kvalitativ innehållsanalys. Resultatet visade att distriktssköterskorna ansåg att arbetet med kroniska bensår var ett vanligt förekommande arbetsmoment samt att bristande samarbete från patienten var en bidragande orsak till långa behandlingstider och utebliven sårläkning. Distriktssköterskorna beskrev vikten av att medvetandegöra patienterna om sitt egenansvar för att främja sårläkningsprocessen. Kunskapen till att behandla kroniska bensår ansåg distriktssköterskorna att de hade, men det spelade ingen roll hur mycket distriktssköterskorna gjorde så länge patienterna inte var följsam i behandlingen. Kompressionsbehandling beskrevs av distriktssköterskorna som den främsta behandlingsmetoden för att uppnå läkning av kroniska bensår, men de upplevdes ibland problematiskt att motivera patienterna till kompressionsbehandling. Det påtalades av distriktssköterskorna att god dokumentation och individuella vårdplaner underlättade deras arbete samt möjliggjorde utvärdering av sårläkningsprocessen. Slutsatsen är att distriktssköterskorna upplever att patienter med kroniska bensår som är väl informerade och motiverade till följsamhet kunde ges optimal bensårsbehandling. Profylaktiskt arbete är viktigt för att undvika recidiv vid behandling av kroniska bensår.
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32

Adriaans, Beverley. "The aetiology and pathogenesis of tropical ulcer." Master's thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/25758.

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Tropical ulcer is a very specific form of cutaneous ulceration. It occurs worldwide in most tropical and a number of subtropical areas. The disease occurs mainly in older children and young adults with children under the age of 5 and adults over 45 years rarely being affected. Ulcers occur most commonly on the lower leg but may occur on the upper limb. Although most ulcers normally heal slowly over many weeks or months, some ulcers may recur. Recognised complications include squamous cell carcinoma, gangrene and osteitis, although these are rare. A number of authors have reported on the disease and suggested diet, trauma and infection as aetiological factors for this condition. This survey was thus conducted to assess as many of these factors as possible. The study took place in 5 tropical areas, namely Zambia, Gambia, southern India, Fiji and Papua New Guinea. Consultations took place at hospitals, rural clinics, health centres and villages. Although many authors have suggested that the disease is related to malnutrition, few have objectively assessed the nutritional status of the patients and compared it with controls. Those studies which included objective assessments were limited to small areas and only investigated specific parameters. In order to investigate the immune response of the host to an anaerobic infection, the antibody levels to the organisms isolated from the ulcers were measured by an ELISA test. The local host response to an infection with a Fusobacterium species was assessed by the number of antibody secreting B-lymphocytes at the site of the ulcers. These parameters may play a role in the localisation of the ulcers and account for recurrent infections.
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33

VanMeter, Ashley. "Time to stabilization : number of practice trials and measured trials needed /." Connect to Online Resource-OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1178291778.

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34

Lee, Son Gregory Martin. "Vestibular connectivity to soleus motor units during quiet stance." Thesis, University of British Columbia, 2007. http://www.oregonpdf.org.

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35

Offenberger, Cassandra D. "VMO exercises a systematic review /." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5714.

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Thesis (M.S.)--West Virginia University, 2008.
Title from document title page. Document formatted into pages; contains vii, 100 p. : ill. (some col.). Includes abstract. Includes bibliographical references.
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36

Lecomte, Jacqueline. "Effect of Naproxen on delayed onset muscle soreness." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=35213.

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The purpose was to determine the effect of Naproxen in attenuating the symptoms (muscle soreness level) and signs (plasma CK activity and muscular strength decrement) of delayed onset muscle soreness (DOMS). Twenty subjects were randomly assigned Naproxen (500 mg BID) or placebo in a double-blind, crossover design. Two testing phases, each 8 days in duration, were separated by a washout period of 7 days. Eccentric single-leg exercises were performed on Days 1, 3 and 4 to induce DOMS in the quadriceps muscles. Perception of muscle soreness, plasma CK, and knee extensor torque were evaluated throughout each phase. Following the eccentric exercise, plasma CK levels were similarly elevated in both Naproxen and placebo conditions. After DOMS had developed, Naproxen reduced the perception of soreness on Day 3 when muscle soreness was highest. Following treatments with Naproxen, peak quadriceps torque during leg extension at 60$ sp circ$/s was higher compared to placebo, however at higher velocity (180 and 300$ sp circ$/s) peak muscle torques were similar. The data indicate that therapeutic doses of Naproxen do not prevent CK release into the plasma but decreases the perception of muscle soreness and positively influences quadriceps peak torque.
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37

Lawlor, Gregory. "An examination of lower limb characteristics during the recovery phase of the sprinting stride in physically awkward children /." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61051.

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The purpose of this study was to examine performance characteristics of physically awkward children during the recovery portion of the sprinting stride, and compare them to those of non-awkward children. The dependent variables (length of functional phases, and length and method of power flow at the hip and knee joints) were calculated using the digitized coordinates of selected body landmarks from a high-speed camera film. Statistical analysis was used to interpret the dependent variables, as well as compare them across ability levels.
The results revealed no significant differences between ability levels in the dependent variables examined. The findings from this study allow for physically awkward children to be characterized as having abilities for success during the recovery of the sprinting stride. Identifying abilities represents an approach that focusses on a positive view into physical awkwardness, a view which has traditionally been negative. (Abstract shortened by UMI.)
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38

Husband, Linda Louise. "Managing chronic illness : the personal experience and the professional management of venous ulceration." Thesis, Durham University, 1996. http://etheses.dur.ac.uk/1520/.

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39

Prasad, V. Himamshu. "Analysis and Comparison of Space Vector Modulation Schemes for Three-Leg and Four-Leg Voltage Source Inverters." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36578.

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Several space vector modulation schemes have been analyzed for three-leg and four-leg voltage source inverters. The analysis is performed with respect to a) switching losses, b) total harmonic distortion, c) peak-to-peak ripple in the line current and d) the ease of digital implementation. The analysis is performed over the entire range of modulation index and for varying load power factors (leading and lagging) under both balanced and unbalanced load conditions. The analysis shows that the performance of four-leg inverters is similar to three-leg inverters for various space vector modulation schemes. The analysis also verifies the fact that a modulation scheme with good harmonic performance usually has high switching losses and vice-versa. The analysis is verified using simulation and experiments. A novel algorithm for the calculation of total harmonic distortion of PWM signals has been proposed.
Master of Science
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40

Finlayson, Kathleen Joy. "Identification of factors contributing to recurrence of venous leg ulcers." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/39531/1/Kathleen_Finlayson_Thesis.pdf.

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Background and Significance Venous leg ulcers are a significant cause of chronic ill-health for 1–3% of those aged over 60 years, increasing in incidence with age. The condition is difficult and costly to heal, consuming 1–2.5% of total health budgets in developed countries and up to 50% of community nursing time. Unfortunately after healing, there is a recurrence rate of 60 to 70%, frequently within the first 12 months after heaing. Although some risk factors associated with higher recurrence rates have been identified (e.g. prolonged ulcer duration, deep vein thrombosis), in general there is limited evidence on treatments to effectively prevent recurrence. Patients are generally advised to undertake activities which aim to improve the impaired venous return (e.g. compression therapy, leg elevation, exercise). However, only compression therapy has some evidence to support its effectiveness in prevention and problems with adherence to this strategy are well documented. Aim The aim of this research was to identify factors associated with recurrence by determining relationships between recurrence and demographic factors, health, physical activity, psychosocial factors and self-care activities to prevent recurrence. Methods Two studies were undertaken: a retrospective study of participants diagnosed with a venous leg ulcer which healed 12 to 36 months prior to the study (n=122); and a prospective longitudinal study of participants recruited as their ulcer healed and data collected for 12 months following healing (n=80). Data were collected from medical records on demographics, medical history and ulcer history and treatments; and from self-report questionnaires on physical activity, nutrition, psychosocial measures, ulcer history, compression and other self-care activities. Follow-up data for the prospective study were collected every three months for 12 months after healing. For the retrospective study, a logistic regression model determined the independent influences of variables on recurrence. For the prospective study, median time to recurrence was calculated using the Kaplan-Meier method and a Cox proportional-hazards regression model was used to adjust for potential confounders and determine effects of preventive strategies and psychosocial factors on recurrence. Results In total, 68% of participants in the retrospective study and 44% of participants in the prospective study suffered a recurrence. After mutual adjustment for all variables in multivariable regression models, leg elevation, compression therapy, self efficacy and physical activity were found to be consistently related to recurrence in both studies. In the retrospective study, leg elevation, wearing Class 2 or 3 compression hosiery, the level of physical activity, cardiac disease and self efficacy scores remained significantly associated (p<0.05) with recurrence. The model was significant (p <0.001); with a R2 equivalent of 0.62. Examination of relationships between psychosocial factors and adherence to wearing compression hosiery found wearing compression hosiery was significantly positively associated with participants’ knowledge of the cause of their condition (p=0.002), higher self-efficacy scores (p=0.026) and lower depression scores (p=0.009). Analysis of data from the prospective study found there were 35 recurrences (44%) in the 12 months following healing and median time to recurrence was 27 weeks. After adjustment for potential confounders, a Cox proportional hazards regression model found that at least an hour/day of leg elevation, six or more days/week in Class 2 (20–25mmHg) or 3 (30–40mmHg) compression hosiery, higher social support scale scores and higher General Self-Efficacy scores remained significantly associated (p<0.05) with a lower risk of recurrence, while male gender and a history of DVT remained significant risk factors for recurrence. Overall the model was significant (p <0.001); with an R2 equivalent 0.72. Conclusions The high rates of recurrence found in the studies highlight the urgent need for further information in this area to support development of effective strategies for prevention. Overall, results indicate leg elevation, physical activity, compression hosiery and strategies to improve self-efficacy are likely to prevent recurrence. In addition, optimal management of depression and strategies to improve patient knowledge and self-efficacy may positively influence adherence to compression therapy. This research provides important information for development of strategies to prevent recurrence of venous leg ulcers, with the potential to improve health and decrease health care costs in this population.
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41

Fox, Karen Elizabeth. "Contrast therapy and post injury lower leg blood flow." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 44 p, 2008. http://proquest.umi.com/pqdweb?did=1459905891&sid=14&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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42

Lorimer, Karen R. "Profiling the venous leg ulcer population and state of community practice: Designing a nurse-lead leg ulcer service." Thesis, University of Ottawa (Canada), 2002. http://hdl.handle.net/10393/6185.

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In order to plan for a new community leg ulcer service, local evidence was required on the regional population with venous leg ulcers and the current state of community practice. There is strong evidence in the literature supporting the assessment and management of venous leg ulcers, but little is known about the local population profile or whether they were receiving the internationally recommended care. This is a manuscript-based thesis that consists of three distinct papers intended for submission for publication. The first two papers detail the planning studies that were undertaken to generate local evidence in order to design a new nurse-led community leg ulcer service. The first paper provides a population profile of the venous leg ulcer population receiving home care in one Ontario region. The second paper provides a critical appraisal of the state of community venous leg ulcer care. In the final paper, an advanced practice nurse (APN) reflects on her role in the design and implementation of the new service. The new leg ulcer service was designed using the evidence from the population profile and to address the gaps and inconsistencies in the provision of "best practice" that were identified in the appraisal of care. In this third paper, a number of barriers to the new evidence-based service were identified on a number of different levels and the multiple strategies tailored to the barriers were described.
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43

Pollard, Andrea. "Mechanoadaptation of developing limbs : shaking a leg." Thesis, Royal Veterinary College (University of London), 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.701670.

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44

Ingvast, Johan. "Quadruped robot control and variable leg transmissions." Doctoral thesis, Stockholm, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-600.

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45

Neville, Neil. "Bipedal running with one actuator per leg." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=83878.

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RHex is a cockroach-inspired hexapod robot capable of walking, running, and climbing. This thesis presents the development of a novel, three dimensional, bipedal running gait for RHex using only two actuated degrees of freedom (DOF), one per compliant leg. To the author's knowledge, there are no previous, two DOF bipeds capable of running. In this thesis it is experimentally demonstrated that only body pitch and leg angle sensing are required. The controller includes three levels of proportional derivative controls for balancing, forward speed and leg tracking, as well a leg trajectory generator and a means of forward speed estimation. With the addition of yaw angle feedback, high repeatability was obtained. Details of a platform upgrade are also presented. Finally, a simulation model of the robot was developed that, in conjunction with a genetic algorithm optimization used to tune the controller and gait parameters, produced a stable gait similar to those observed in experiment.
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46

Drabble, Michael J. "Turbulent wind action on tension leg platforms." Thesis, Heriot-Watt University, 1989. http://hdl.handle.net/10399/855.

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47

Balaji, R. "Collisions of tension leg platforms with ships." Thesis, University of Southampton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380192.

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48

Al, Ahmari A. "Biomechanical characteristics of multidirectional single-leg landing." Thesis, University of Salford, 2018. http://usir.salford.ac.uk/47554/.

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Single-leg landing (SLL) is a functional task that has been linked to injury. It is the test most used in both research and clinical practice to evaluate the dynamic stability of the lower extremities, particularly the knee joint. It is also an important screening tool that can be used to identify those who are at risk of lower-extremity injury and to evaluate the progress of rehabilitation regimes for individuals with lower-limb injuries. However, SLL occurs in multiple directions and from different heights during sport activity. Limited literature explores the biomechanical characteristics of SLL tasks and the association between different directions of SLL. A better understanding of SLL biomechanical characteristics and the relationship between different types of SLL may provide important information to help understand how individual joint biomechanics behave under different types of SLL to meet the demands of sport. Four themed studies are included in this thesis. The first study is a systematic review that aims to review the available literature that has investigated the biomechanics of the lower extremities during multidirectional SLL. The results indicate that only SLL in a forward direction is tested in the majority of the literature using three-dimensional (3D) motion analysis, indicating the importance of examining other directions that seen in sports or used clinically. The second study aims to examine within-day and between-days reliability and establish standard errors of measurement (SEM) for lower-extremity biomechanical variables using both two-dimensional (2D) and 3D motion analysis during multidirectional SLL. The majority of 2D and 3D variables show good to excellent reliability with relatively small SEM. However, knee valgus moment and hip adduction moment are less reliable among all the tasks assessed using 3D motion analysis. The third study investigates the correlation between 2D and 3D motion-analysis techniques when measuring the lower-extremity frontal plane of movement during multidirectional SLL. The results indicate that the 2D frontal plane projection angle (FPPA), at best, moderately correlates with 3D knee valgus angle, while the 2D hip adduction (HADD) angle shows strong significant correlation with 3D HADD angle, ranging between r = 0.70 to r = 0.90 across all tasks, apart from the right leg during medial single-leg landing off-platform, which had only a small association (r = 0.27), suggesting that 2D is a good alternative to 3D when measuring hip angles, though it should be used with caution when measuring knee angles. The final study examines the relationship between biomechanical variables during multidirectional SLL using both 2D and 3D motion-analysis techniques. The vast majority of 2D and 3D variables reported significant moderate to very strong correlations across all examined tasks. These findings suggest that a single task can be used to represent the biomechanical variables found across other tasks, so that when measuring lower-limb biomechanics, a clinician may not need to conduct all these tests. What this thesis adds to the current body of knowledge is that multidirectional SLL can be done in a reliable manner to measure lower-extremity biomechanical variables using either 2D or 3D motion analysis. 2D motion analysis can be used as a valid alternative to 3D, particularly for hip angle assessment, and single tasks can be used in isolation to represent lower-limb biomechanics across a multitude of tasks.
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49

Wood, David Samuel. "Leg press stretch-shortening potentiation in male long distance runners." Birmingham, Ala. : University of Alabama at Birmingham, 2009. https://www.mhsl.uab.edu/dt/2009r/wood.pdf.

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50

Kim, Mila, and Carina Lindström. "Kroniska bensår : Personernas upplevelser." Thesis, Ersta Sköndal högskola, Institutionen för vårdvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:esh:diva-2188.

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Bensår är ett ökande problem i samhället, detta som följd av att vi blir allt äldre. Bensår är svåra att läka och det är vanligt att de återkommer. Kroniska bensår definieras som sår som inte läker inom sex veckor. De vanligaste orsakerna till bensår är venös insufficiens, arteriell insufficiens eller en bladning av dessa. Syftet med litteraturstudien var att beskriva personers upplevelser av att leva med kroniska bensår. Det här arbetet har utförts som en litteraturstudie, där sökning av artiklar har gjorts i två databaser CINAHL och PubMed. Efter sökning i databaserna har 16 artiklar valts ut och granskats. Analysen av artiklar har gjorts genom att plocka ut förekommande fenomen i texten och kategorisera dessa i huvudteman med underteman. Analysen resulterade i tre huvudteman: smärta, aktivitetsbegränsningar och lukt och vätskande sår. Det finns många olika faktorer som påverkar personernas upplevelser av att leva med bensår, där smärta, rörelseförmågan och lukt och vätska från såret har en central roll. Studien visar på att många personer upplever att deras problem inte tas på allvar. Det holistiska synsättet inom vården måste förbättras och mer hänsyn bör tas till personernas existentiella, psykiska, sociala och kroppsliga upplevelser.
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