Дисертації з теми "Movement variabiliity"
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Sim, Luke. "Explicit Perceptual Estimation of Movement Variability." Cleveland State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=csu1560332998736569.
Повний текст джерелаLangdown, Benjamin Louis Gerard Raymond. "Movement variability and strength and conditioning in golf." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/6164/.
Повний текст джерелаDey, Abhishek. "VARIABILITY AND LOCATION OF MOVEMENT ENDPOINT DISTRIBUTIONS: THE INFLUENCE OF INSTRUCTIONS FOR MOVEMENT SPEED AND ACCURACY." Cleveland State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=csu1463074085.
Повний текст джерелаRobins, Matthew T. "Constraints on movement variability during a discrete multi-articular action." Thesis, Sheffield Hallam University, 2013. http://shura.shu.ac.uk/7602/.
Повний текст джерелаSoangra, Rahul. "Understanding Variability in Older adults using Inertial Sensors." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/49248.
Повний текст джерелаPh. D.
Collins, John Philip. "Deconstructing adsorption variability : the prediction of spatial uncertainty in pollutant movement." Thesis, Durham University, 2008. http://etheses.dur.ac.uk/2218/.
Повний текст джерелаVidal, Anthony D. "Effects of attentional focus cues on movement coordination and coordination variability." Thesis, California State University, Long Beach, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10096061.
Повний текст джерелаThe purpose of this study was to examine the effects of FOA cues on movement coordination of the lower extremity during a standing long jump. A modified vector coding analysis of hip/knee and ankle/knee coordination was used to evaluate the influence of FOA cues on coordination patterns and coordination variability. Results indicated no main effect of coordination patterns between FOA conditions for ankle/knee coordination F(1,19) = 0.43, p = 0.52 or coordination variability F(1,19) = 0.00, p = 0.98 and no main effect of hip/knee coordination patterns F(1,19) = 2.48, p = 0.13 or coordination variability F(1,19) = 5.0, p = 0.49. Participants did jump significantly further under and external FOA (2.27 ± .38m) than the internal FOA (2.16 ± .37m, p = 0.035). It is possible that manipulation of arm swing coordination or landing strategies are influencing the changes in jump distances between FOA conditions.
Lametti, Daniel R. "On the control of movement variability through the regulation of limb impedance." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101860.
Повний текст джерелаThrelfall, J. L. "Sediment source and discharge variability in a small subarctic nival catchment." Thesis, University of Southampton, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373575.
Повний текст джерелаTaylor, Paul Geoffrey. "Quantifying the functional role of discrete movement variability: Links to adaptation and learning." Thesis, Australian Catholic University, 2016. https://acuresearchbank.acu.edu.au/download/8e0b296509df6f9f48db9492f39d38c680ddcdb87c3446055b5a993dfd8361e0/3760378/Taylor_2016_Quantifying_the_functional_role_of_discrete.pdf.
Повний текст джерелаKrüger, Melanie. "Motor variability as a characteristic of the control of reaching movements." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-161220.
Повний текст джерелаSinghal, Alka. "Spatial variability in ground-water movement in Delaware County, Indiana : a GIS based model." Virtual Press, 2004. http://liblink.bsu.edu/uhtbin/catkey/1306859.
Повний текст джерелаDepartment of Geology
Barris, Coralie Sian. "An examination of learning design in elite springboard diving." Thesis, Queensland University of Technology, 2013. https://eprints.qut.edu.au/63807/1/Coralie_Barris_Thesis.pdf.
Повний текст джерелаRichardson, Ashley Kendall. "Biomechanics of the golf swing and putting stroke." Thesis, University of Hertfordshire, 2016. http://hdl.handle.net/2299/17194.
Повний текст джерелаDomkin, Dmitry. "Perception and control of upper limb movement : insights gained by analysis of sensory and motor variability /." Doctoral thesis, Umeå : Umeå universitet, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-485.
Повний текст джерелаCornejo, Donoso Jorge Fernando. "Effects of fish movement and environmental variability in the design and success of a marine protected area." Thesis, University of California, Santa Barbara, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10103605.
Повний текст джерелаMarine Protected Areas (MPA) are broadly used to protect marine ecosystems, restore biomass, and increasingly as tools in fisheries management for benthic stocks. Nevertheless, MPAs are seldom used to target pelagic species due the challenges of designing an effective MPA in a highly dynamic environment. It is believed that highly mobile organisms will get few benefits, since they leave the protected area too frequently. One possible solution is to compensate for such movement with larger MPAs. Nevertheless, uncertainty about the benefits in the face of vagaries about fish movement make it unlikely that such efforts would be successfully pursued.
Although it is a generally accepted that MPAs provide multiple benefits if well designed, empirical demonstrations of benefits from MPA are hard to obtain. They require long term evaluations, and as a consequence, comparisons between alternative MPA designs are almost nonexistent. Simulation models provide an alternative to empirical approaches that allow tests of designs and forecasts of potential outcomes. To date, most of the simulation models of MPAs have been developed for benthic systems, where simplified assumptions about fish and fisherman movement are reasonable. Fortunately, with the advent of more realistic fish movement models, new approaches are now possible that can combine complex individual-based models of movement, population dynamics and virtual MPA systems. The use of these new complex simulation models can guide the optimization of MPA design to increase both stock sizes and fisheries yields.
The goal of the research presented in this dissertation is to study the potential of a large MPA to protect a pelagic stock and determine how fish movement characteristics and complex environmental dynamics influence the optimal design criteria for a successful pelagic MPA. The findings are timely given increasing interest in developing large no fishing zones to protect overfished pelagic stocks, especially for those taxa whose distribution spans more than one exclusive economic zone or resides in international waters. For this purpose I implemented a simulation model that incorporates detailed fish movement and their responses to complex environmental forcing to study the effect of fish movement on the efficacy of MPAs of different size and location. (Abstract shortened by ProQuest.)
Aminaka, Naoko. "Assessment of Movement Coordination Variability and Neuromuscular Characteristics During Stair Ambulation in those with and without Patellofemoral Pain Syndrome." University of Toledo / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1273771731.
Повний текст джерелаBonnet-Lebrun, Anne-Sophie. "Intraspecific variation in environmental and geographic space use : insights from individual movement data." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/275584.
Повний текст джерелаVial, Shayne Marc. "Accuracy in the badminton short serve: A methodological and kinematic study." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2016. https://ro.ecu.edu.au/theses/2079.
Повний текст джерелаVan, Den Bos M. A. J. "Observations on the variability of corticospinal tract excitability during the reaction time period for simple human finger movements." Thesis, University College London (University of London), 2016. http://discovery.ucl.ac.uk/1505877/.
Повний текст джерелаFernández-Valdés, Villa Bruno. "La variabilidad de movimiento en el entrenamiento de fuerza en los deportes de equipo / Movement variability in resistance training in team sports." Doctoral thesis, Universitat de Barcelona, 2020. http://hdl.handle.net/10803/670682.
Повний текст джерелаOver the last decades, resistance training in team sports has evolved towards a more integrative approach, adapting to its own characteristics and distancing itself from the more traditional training derived from individual sports. Based on human movement, Julio Tous (Seirul·lo Vargas, 2017, Chapter Tous Fajardo, Julio) proposed a paradigm shift in which movements act as the backbone of exercise selection instead of the muscle groups, which in turn become mere executors. Structured training is a resistance training methodology that allows us to adjust to this paradigm shift through different levels of sports approach. Seirul·lo (1993) established four levels of specificity ranging from general to competitive. Subsequently, Moras (2000) developed six levels of sports approach, ranging from zero to five with different groupings. Analysis of human movement has evolved to allow the assessment of the variability of a measure by targeting the detection of changes in fluctuations and spatiotemporal characteristics of the outcomes. Within the past 20 years, entropy analysis has become relatively popular as a measure of system complexity. Thus, the aim of this thesis was to analyse the role of movement variability measured through entropy in resistance training in team sports with different levels of sports approach. First, a pilot test was carried out to compare the values of mean acceleration and entropy values in short actions (i.e. collisions) when registered with two devices with different accelerometer sampling frequencies (1000 Hz versus 100 Hz). Differences were observed for mean acceleration and entropy when measured with different sampling frequencies. Therefore, 1000 Hz was selected as the sampling frequency for the rest of the experiments on this thesis. The first study described the variability in acceleration during a resistance training task, performed in horizontal inertial flywheels without (NOBALL) or with the constraint of catching and throwing a rugby ball (BALL). Mean changes (%; ±90%CL) of 4.64; ±3.1 g for mean acceleration and 39.48; ±36.63 a.u. for sample entropy indicated likely and very likely increase when in BALL condition. Multiscale entropy also showed higher unpredictability of acceleration under the BALL condition, especially at higher time scales. Thus, the application of match specific constraints in resistance training for rugby players elicit different amount of variability of body acceleration across multiple physiological time scales. The second study aims to identify between-position (forwards vs. backs) differences in movement variability in cumulative tackle events training during both attacking and defensive roles. Participants performed four blocks of six tackling (i.e. tackling an opponent) and six tackled (i.e. being tackled by an opponent while carrying a ball) events (i.e. 48 total tackles) while wearing a micro-technological inertial measurement unit. Sample entropy (SampEn) were used to analyse the movement variability. Significant between-block differences were observed in backs (block 1 vs 3 and block 1 vs 4) but not in forwards. Movement variability shows a progressive reduction with cumulative tackle events, especially in backs and the defensive role. Forwards present lower movement variability values in all blocks, particularly in the first block, both in the attacking and defensive role. Last, in the third study aims was to identify the changes in movement variability and movement velocity during six weeks training period using a resistance horizontal forward-backward task without (NOBALL) or with (BALL) the constraint of catching and throwing a rugby ball in the forward phase, during a six-week period. SampEn showed no significant decrease for NOBALL (ES -0.64 ± 1.02) and significant decrease for BALL (ES -1.71 ± 1.16; p<0.007) conditions. Additionally, movement velocity showed significant increase for NOBALL (ES 1.02 ± 1.05; p<0.047), and significant increase for BALL (ES 1.25 ± 1.08; p<0.025) between weeks 1 and 6. The complexity index showed higher levels of complexity in BALL condition, specifically in the first three weeks. Movement velocity and complex dynamics were adapted to the constraints of the task after a four-week training period. Entropy measures seem a promising processing signal technique to identify when these exercise tasks should be changed. In conclusion, analysing the movement variability through entropy will have a fundamental role in the control and programming of resistance training in team sports, especially when they have a coordinative predominance based on sports movement.
Sommer, Marius. "Effect of timing training in golf and soccer players : skill, movement organization, and brain activity." Doctoral thesis, Umeå universitet, Institutionen för psykologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-86664.
Повний текст джерелаOlsson, Jimmy. "The influence of storm movement and temporal variability of rainfall on urban pluvial flooding : 1D-2D modelling with empirical hyetographs and CDS-rain." Thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-387898.
Повний текст джерелаPluviala översvämningar skapas från ytavrinning vid intensiva nederbördstillfällen. De uppstår ofta i urbana miljöer till följd av den höga andelen hårdgjorda ytor och ledningsnätets begränsade kapacitet. Forskning har visat att ett regnmolns rörelseriktning och hastighet påverkar avrinningsförloppet. Om molnet rör sig längs med flödesriktningen i terrängen kan en ökning i vattenlödet nedströms ett avrinningsområde uppstå. Denna effekt har visat sig vara störst om hastigheten hos regnmolnet och vattenflödet är likvärdiga. Ytterliggare en faktor som påverkar avrinningsförloppet är hur regnintensiteten är fördelad över tid. Olsson et al. (2017) har tagit fram fem empiriska regntyper som speglar tidsfördelning inom ett Svenskt regntillfälle. Inom översvämningsmodellering är det vanligt att använda ett så kallat CDS-regn (Chicago Design Storm), vilken har en given tidsfördelning. Med anledning av detta är det intressant att jämföra översvämningar genererade av ett CDS-regn och av de empiriska regntyperna. Syftet med denna studie var att utreda hur regnmolns rörelse påverkar urbana pluviala översvämningar med avseende på vattendjup, samt att jämföra denna påverkan med effekten från olika tidsfördelningar av regnintensiteter. En kombinerad dagvattenmodell (1D) och markavrinningsmodell (2D) av en mindre svensk tätort användes för att simulera olika regnscenarier. De fem empiriska regntyperna och ett CDS-regn simulerades med en rörelseriktning längs med, emot och vinkelrätt i förhållande till flödesriktningen. Även scenarier med stationära regnmoln simulerades. Maximala översvämningsdjup utvärderades i tio punkter spridda över hela modellområdet. Resultatet från simuleringarna visade att regnmolnets rörelse hade försumbar påverkan på översvämningsdjupen. De olika tidsfördelningarna av regnintensitet hade däremot betydande påverkan på de maximala översvämningsdjupen. Som mest var det det maximala översvämningsdjupet 1.9 gånger större beroende vilken regntyp som användes som indata. CDS-regnet genererade i regel de största översvämningsdjupen, även om utfallet från en av de fem empiriska regntyperna var förhållandevis likvärdigt. Regnintensitetens tidsfördelning var därmed en kritisk parameter vid den hydrauliska modelleringen av urbana pluviala översävmningar, till skillnad från molnrörelse som hade försumbar påverkan.
Bye, Robin Trulssen Electrical Engineering & Telecommunications Faculty of Engineering UNSW. "The BUMP model of response planning: a neuroengineering account of speed-accuracy tradeoffs, velocity profiles, and physiological tremor in movement." Publisher:University of New South Wales. Electrical Engineering & Telecommunications, 2009. http://handle.unsw.edu.au/1959.4/43542.
Повний текст джерелаRamanauskas, Martynas. "Skirtingų kinezioteipavimo metodikų poveikis sveikų, fiziškai neaktyvių vyrų kelio sąnario propriocepcijai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120621_101551-54376.
Повний текст джерелаObject of the study: the effect of different kinesio taping techniques for knee isometric torque variability and joint position sense Aim of the study: to investigate the effect of different kinesio taping techniques for knee proprioception Goals of the study: 1. To investigate and compare the effect of different kinesio taping techniques for knee extensors torque variability with and without visual feedback when knee is in 60º flexion. 2. To investigate and compare the effect of different kinesio taping techniques for knee extensors torque variability with and without visual feedback when knee is in 90º flexion. 3. To investigate and compare the effect of different kinesio taping techniques for joint position sense with and without visual feedback. Hypothesis of the study: Knowing that kinesio taping technique for muscle (KT1) affects motor control of muscles, it might be supposed that movement variability will decrease when muscle will be in the medium length and it’s known that kinesio taping technique for ligament (KT2) affects motor control of joints so we believe that it will improve the joint position of the knee. Methods and organization of the study: The study was performed in the Lithuanian Academy of Physical Education in the Center of Movements Clinical and Basic Research. At the beginning maximal isometric knee extension torque at knee joint angles of 60º, 90º was measured. Furthermore, isometric knee extension torque variability at 20% of maximal voluntary... [to full text]
Taylor, Melissa Rose. "The Effect of Input Parameters on Detrended Fluctuation Analysis of Theoretical and Postural Control Data: Data Length Significantly Affects Results." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1448879109.
Повний текст джерелаChrétien, Marie. "Compréhension des mécanismes de retrait-gonflement des sols argileux : approche sur site expérimental et analyse de sinistres sur constructions individuelles." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14033/document.
Повний текст джерелаHomes built on sensitive clayey soils, considered as medium risk, are showing cracks evidencing differential movements occurring in their foundations after drought periods of 2003 and 2005. To address this problem in a first part of the thesis, the swell-shrinkage behaviour has been investigated specifically to the Plio-quaternary clayey formation of Brach, both at the scale of a district and a small land. The results reveal the variability of the clay behaviour when sandy lenses occurred inside the formation. The present work aims to assess geotechnical and compressibility parameters to analyse the variability of the swelling-shrinkage parameters inside a same clayey formation. The aim of a second part of this study is to identify the seasonal soil moisture variations occurring between wet period and dry summer down to 3 meter depth, using a new method integrating geophysical and geotechnical data obtained in situ and in laboratory. This research is based on the setting of an experimental site on Pessac town (Gironde) in order to monitor clayey behavior, to establish correlations between geotechnical properties, water content variations and electrical resistivity on soils over time and every month. The purpose is to survey and evaluate kinetics of soil water content evolution, temperature and vertical displacements down to 3 m depth. This work presents the first results which compare geotechnical, volumetric and electrical resistivity data by combining the field and laboratory measurements
Krüger, Melanie [Verfasser], and Andreas [Akademischer Betreuer] Straube. "Motor variability as a characteristic of the control of reaching movements : influence of sensory input and task constraints / Melanie Krüger. Betreuer: Andreas Straube." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2013. http://d-nb.info/1042615047/34.
Повний текст джерелаMansour, Pour Kiana. "Effet de la variabilité de la vitesse sur le mouvement de poursuite oculaire lente et sur la perception de la vitesse." Thesis, Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0137.
Повний текст джерелаIt is still not fully understood how the visual system integrates motion information across different spatial and temporal frequencies, in order to build a coherent percept of the global motion under complex, noisy naturalistic conditions. We addressed this question by manipulating local speed distribution (i.e. speed bandwidth Bv) using a well-controlled class of broadband random-texture stimuli called Motion Clouds (MCs), with continuous naturalistic spatiotemporal frequency spectra (Sanz-Leon et al., 2012,; Simoncini et al., 2012).Our results show that pursuit gain and precision deteriorate as stimulus speed variability increases. In the perceptual speed discrimination experiment, we found that MCs with moderately larger speed bandwidth were perceived as moving faster. However, beyond a critical bandwidth (Bv > 0.5 °/s), the perception of a coherent speed was lost. In a third direction discrimination experiment, we found that for large bandwidth MCs participants could no longer discriminate motion direction. These results suggest that when increasing speed bandwidth from a small to a large range, the observer experiences different perceptual regimes. We finally ran a Maximum Likelihood Difference Scaling (Knoblauch & Maloney, 2008) experiment with our MC stimuli to investigate these different possible perceptual regimes. We identified three regimes across the range of tested values of velocity difference, that would correspond to motion coherency (and speed integration), motion transparency and complete incoherency
Català, Antúnez Jordi. "La variabilidad de movimiento en la carrera batida de remate en jugadoras de voleibol de distintas categorías = Movement variability in volleyball spike in female players of different categories." Doctoral thesis, Universitat de Barcelona, 2021. http://hdl.handle.net/10803/672624.
Повний текст джерелаIn this thesis, the spike movement approach (CBR) as the most determining action for the result of volleyball, is studied, as a complex technical action, treating it as a movement pattern (PM). Fourty eight female players of different categories realized three different studies. The first study aimed to measure the transmission of impact forces to the spine during CBR and the times between phases, to measure the differences that occurred between CBR with and without the ball constraint in different categories. They allow us to observe how the appearance of the ball as an external constraint affects the performance of the CBR in global and in all different categories. The second study through a non-linear analysis, calculate the variability of movement (VM) of the CBR performed on the right and left sides of the field, with and without the ball as an external constraint. In conclusion, the VM of the CBR is similar when performed on the right or left side of the field, while the VM of the CBR will be higher with the ball constraint. Otherwise, a high VM of the CBR is appreciated among the players, which shows the existence of an exclusive performance profile, because of their personal characteristics. The third study aimed to analyze the VM of the CBR: the different categories of this sport (infantil, cadete, juvenil, senior) and the specific roles of the game (colocadora, punta, central, libero). The VM decreased between the infantil and cadete categories, stabilizing in the rest of the categories, both with and without the ball, showing that from the cadete category the CBR PM consolidates and reaches its maturity stage. Regarding the determining factor of the playing position, the punta is the one with the lowest VM values, because of the greater practice of the CBR in practices and games. The use of the acceleration signal of a PM to analyze its VM through entropy, has special relevance to be able to identify how the appearance of different internal and external constraints modify movement patterns.
Drebulys, Gintaras. "Judesių variabilumas atliekant šuolius į aukštį iš vietos." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060515_222836-35724.
Повний текст джерелаSavin, Jonathan. "Simulation de la variabilité du mouvement induite par la fatigue musculaire pour la conception ergonomique de postes de travail." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS349.
Повний текст джерелаEvery human movement presents an inter- and intra-individual variability. This variability of movement (MV) affects trajectories, coordinations, motor forces as well as muscular activations. However, to date, MV is almost ignored in the workstations design and there is no means to simulate it. The objective of this work was therefore to develop a virtual human (VH) to simulate the effects of one source of VM (muscle fatigue) on a reference task (a repetitive pointing task). A VH controller has been developed. Based on Xia and Frey-Law muscle fatigue model by, it implements controls designed to simulate some effects of muscle fatigue (exertion limitation, transfer of motor activity, reduction of trajectory tracking performance). The actuation of the VH is calculated by quadratic optimization using a dynamic simulation physics engine. Movement data was analyzed to identify fatigue-induced MV during the pointing activity, and to validate the proposed VH controls. An laboratory experiment has been carried out. Principal component analysis (PCA) of kinematic data identified the degrees of freedom involved in the VM and detected transitions of movement patterns with fatigue. This VH demonstrator simulates some characteristics of the MV observed. Improvements of the HV are proposed, however it can already be used to make designers more aware of effects of the VM in occupational risks prevention from the first steps of workstations design
Simonet, Pascal. "L'hypo-socialisation du mouvement : prévention durable des troubles musculo-squelettiques chez des fossoyeurs municipaux." Phd thesis, Conservatoire national des arts et metiers - CNAM, 2011. http://tel.archives-ouvertes.fr/tel-00652318.
Повний текст джерелаvan, den Berg Johannes. "Indicators and predictors of sleepiness." Doctoral thesis, Umeå : Public Health and Clinical Medicine, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-708.
Повний текст джерелаLIMA, Cícero Aurélio Grangeiro. "Estudo da variabilidade espacial da infiltração: aspectos teóricos e experimentais." Universidade Federal de Campina Grande, 1992. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/2165.
Повний текст джерелаMade available in DSpace on 2018-11-10T13:49:36Z (GMT). No. of bitstreams: 1 CÍCERO AURÉLIO GRANGEIRO LIMA - DISSERTAÇÃO PPGECA 1992..pdf: 25126677 bytes, checksum: 344ec8cc3722c36124b4e9b1b88b50b3 (MD5) Previous issue date: 1992-11-12
Testes de infiltração com infiltrômetro duplo anel de nível constante foram efetuados em 32 pontos de uma malha retangular de uma parcela agrícola da Fazenda Experimental da EMEPA - Pb. Ajustamentos as Leis de Philip e de Green e Ampt foram efetuados. Medições da granulometria, densidade aparente seca do solo e umidade volumétrica antes e depois dos testes foram também efetuadas. Utilizou-se a seguir técnicas de análises estatística clássica e geoestatística para caracterizar a variabilidade espacial dos parâmetros de infiltração obtidos pelos ajustamentos. Nenhum dos parâmetros estudados apresentou estrutura espacial definida. Correlações simples e múltiplas evidenciaram dependência da percentagem de Argila + Silte com o espaço físico, e independência entro os parâmetros de infiltração. Ilustrações sobre o efeito da variabilidade espacial sobro o ponto de vista agronômico o hidrológico são mostradas.
Infiltration tests with double-ring infiltrometers were performed in a 33 paint reiangular regular]y spaced grid of an agri cultural site. Fitting of the infiltration curve obtained by Philip and Green and Ampt laws allowed to obtain the sorptivity, the infiltration rate at steady state and the suction parameters of Green and Ampt,for each point. Measurements of pre- and post-humidi ty, granulometry and dry density were also performed. Classical statistical and geo-statistical techniques were used to characterize spatial variability. None of the parameters studied showed a defined spatial structure. Single and muitiple correlations showed a dependence between Cclay + siltD percentage with space but no correlation between parameters was obtained. I11ustrative considerations about spatial variability were ma de with agronomic and hydrologic applications.
Worringham, Charles Jerome. "Spatial variability and impact force in aiming movements." 1987. http://catalog.hathitrust.org/api/volumes/oclc/17256803.html.
Повний текст джерелаCelik, Ozkan. "Neuromuscular Mechanisms of Movement Variability: Implications for Rehabilitation and Augmentation." Thesis, 2011. http://hdl.handle.net/1911/64399.
Повний текст джерелаKu, Ya-Ting, and 古雅婷. "Variability of outcome performance and movement coordination on badminton stroke." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/55j6sq.
Повний текст джерела國立臺東大學
體育學系碩士班
99
Purpose: This study examined the expertise in terms of variability on outcome performance and whole body movement pattern in badminton players. Method: The participated players were ten excellent high school students. They were required to play 10 shots of forehand drop, smash and clear each to an 80cm wide and 80cm long target from a fixed position. The landing location of each strokes and the three dimensions coordinates of the major segments of whole body were recorded. The mean, standard deviation (SD), variable error(VE) were calculated. The principle component analysis (PCA) was implemented on three dimensional coordinates. Results: 1.For consequence of shot. (1)The highest success was clear, the lowest was smash. (2)The drop and smash distribution were tend to center and rear on target. (3)For variable error, individual difference showed in types of shot and repeated shots. 2.For movement coordination. (1)Four components explain 91%-95%. (2) EFFs showed that types of smash was different from others.. No significant difference revealed among components or types. (3)The relative phase on the movement coordination of the selected participant showed temporal difference among vary shots and same shots in particular for the smashes. Conclusions: 1. Although no significant showed among types of shots on the location of landing, the target position vary slightly according to different type. 2. No significant difference showed in movement coordination among types of shots. However, consistent trend of variability of movement coordination were found when the individual players stoke different shots or same shots.
Gates, Deanna Helene. "The role of muscle fatigue on movement timing and stability during repetitive tasks." 2009. http://hdl.handle.net/2152/6874.
Повний текст джерелаtext
Fung, Stephen. "The Variability of Neuromuscular Control During Knee Extension Performance." Thesis, 2014. http://hdl.handle.net/1974/12224.
Повний текст джерелаThesis (Master, Kinesiology & Health Studies) -- Queen's University, 2014-06-02 12:18:42.802
"A Nonlinear Analysis of Movement Variability: Stability in a Sit to a Stand." Master's thesis, 2016. http://hdl.handle.net/2286/R.I.38515.
Повний текст джерелаDissertation/Thesis
Masters Thesis Psychology 2016
Málková, Helena. "Multiplikace tvaru jako prostředek ke konstruování reality." Master's thesis, 2017. http://www.nusl.cz/ntk/nusl-365096.
Повний текст джерелаStein, Peter Jonathan. "Task variables in violin bowing: influence on variability of bow and bowing limb movement." Thesis, 2016. https://hdl.handle.net/2144/19562.
Повний текст джерелаVaz, João Pedro Casaca de Rocha. "Adaptation of motor control to training and disuse : contribution of muscle synergy analysis and movement variability." Doctoral thesis, 2016. http://hdl.handle.net/10400.5/12145.
Повний текст джерелаOriginalmente introduzido por Nikolai Bernstein (1967), o famoso degrees of freedom problema resulta do abundante número de graus de liberdade presentes no sistema músculo-esquelético. A análise deste tópico tem duas abordagens: i) uma vez que é pouco provável que o Sistema Nervoso Central consiga controlar cada grau de liberdade individualmente, a complexidade do controlo motor tem que ser reduzida, e ii) uma vez que existem várias formas e possibilidades de realizar o mesmo movimento, uma repetição de um gesto nunca é igual a outra. Isto leva a dois pontos de estudo na área do controlo motor e biomecânica: coordenação motora e variabilidade. A presente tese teve como principal objetivo compreender de que forma sistemas de controlo motor se comportam e adaptam em diferentes condições. Esta tese compreende três estudos que abordam três tópicos de grande interesse na área do desporto: expertise, risco de lesão e fadiga. O primeiro estudo (expertise) procurou perceber qual o efeito da expertise na organização sinergista dos músculos (muscle synergy) que parece representar as estratégias neurais de controlo motor. O estudo 2 (desvio medial do joelho) e 3 (fadiga) tiveram como principal objetivo perceber o impacto destas perturbações na estabilidade dinâmica dos sistemas biológicos. Os resultados principais desta tese sugerem: 1) que existe uma grande robustez nos padrões de organização sinergista dos músculos entre nadadores de diferentes níveis (estudo I), indicando que diferenças entre grupos se possa explicar por adaptações periféricas; 2) fatores de risco de lesão como o desvio medial do joelho e a fadiga alteram a estabilidade dinâmica do sistema neuromuscular no sentido de maior instabilidade. Esta alteração representa uma perda de capacidade de adaptação, por parte do sistemas neuromuscular, a eventuais perturbações ao sistema.
Lanthier, Gabriel. "Variations inter journalières dans la structure des communautés de poissons : implications pour le développement de modèles de qualité d'habitats." Thèse, 2009. http://hdl.handle.net/1866/8126.
Повний текст джерелаChang, Chin-Ying, and 張錦櫻. "Effect of Chan-Meditation and Meditative Movement on Ryodoraku Values and Heart Rate Variability in Middle-Aged and Elderly Males." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/u8qfwz.
Повний текст джерела國立臺北護理健康大學
運動保健研究所
105
Background: With the prtice of meditation and meditative movement, our body's production of self-healing power and some studies show that it can increase the parasympathetic, good for fatigue, anxiety and depression. Through the scientific research to know that can offer health benefits of Ryodoraku and heart rate variability for middle-aged and elderly males. Purpos: The study was to explore the effect of Chan-meditation and meditative movement on Ryodoraku and heart rate variability in middle-aged and elderly males. Methods: Participants (age 40-70 years) were at least more than one year experienced in Chan-meditation and meditative movement practice (n=30), control group (CG) was no related experience in practice (n=11). Measured Ryodoraku and heart rate variability were compared to the previous, intervention and post. All the data were analyzed with one-way ANOVA, two-way ANOVA and Scheffé method. The significance level was set at α=.05. Results: In Ryodoraku this part, the average of upper limb bio-energy (pre: 56.08 ± 12.53, post: 59.02 ± 11.41) and Ryodoraku bio-energy (pre: 56.95 ± 11.69, post: 57.97 ± 11.37) in meditative movement group (MM) was bigger than the Chan-meditation group (CM). Average of Ryodoraku bio-energy in CM (pre: 47.44 ± 14.77, post: 42.39 ± 12.85) was decreased and “upper limb and lower limb ratio” (pre: 0.88 ± 0.22, post: 0.91 ± 0.34) was increased after intervention Chan-meditation. All of Ryodoraku values in control group (CG) were decreased significantly (p<.05). The part of heart rate variability values, HF/LF (pre: 2.86 ± 3.96, post: 3.03 ± 3.01)、LF (pre: 492.17 ± 477.62, post: 742.31 ± 761.41) and power (pre: 1533.25 ± 1361.76, post: 2292.35 ± 2485.11) in CM were increased, and except HF/LF (pre: 4.41 ± 4.26, post: 6.4 ± 4.61) the other values in MM were decreased. Conclusion: Some studies show that meditation is able to increase parasympathetic nervous(HF), but in this study found that Chan-meditation can increase the activity of the autonomic nervous system(LF and power), albeit highly similar activity between meditation(relaxation) and Chan-meditation(arousal), but it’s difference of physiological response. Thus, we suggest that appropriately distinguish the various practices from different meditations. In addition, sympathetic and parasympathetic nerves present a staggered pattern in different stages of MM. On the other word, meditative movement can be used to stimulate and regulate the autonomic nervous system. Moreover, the autonomic nervous system was decreased in CG that showed rest for a long time leads to distractibility and depressed.
Matasová, Klára. "Sezónní variabilita aktivity a promořenosti patogenem v populacích raka pruhovaného." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-312764.
Повний текст джерелаSmallwood, Rachel Fay. "Trial-to-trial dynamics and learning in generalized, redundant reaching tasks." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-08-1935.
Повний текст джерелаtext
Chen, Miao-Yi, and 陳妙儀. "Effects of Eye Movement Desensitization and Reprocessing on Anxiety, Depression, Quality of Life, Blood Pressure and Heart Rate Variability in Patients with Hypertension." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/79444952091258264816.
Повний текст джерела國防醫學院
護理研究所
103
Background: Hypertension, one of the leading causes of death around the world, is a continuously increasing global health problem. The patients with hypertension often unconsciously recognize their disease conditions, and delay to receive the treatment. Due to the chronic disease situation and the difficulty to control the blood pressure, hypertension patients often experience emotional distress, such as anxiety and depression, which may affect blood pressure control and heart rate variability. There is no study to examine the effect of eye movement desensitization and reprocessing (EMDR)on improving psychological emotional distress and blood pressure control in patients with hypertension. Purpose: The study aimed to examine the effect of EMDR intervention on improving anxiety, depression, illness representation, quality of life, blood pressure and heart rate variability in patients with hypertension. Method: This is an experimental longitudinal design study, which was conducted in a medical center. Total of 102 patients were randomly assigned into experimental group (n = 50) and control group (n = 52). Patients in the experimental group received four-week EMDR intervention, and in control group received general nursing care. Data were collected for four times: pretest, posttest, one-month follow-up, and three-month follow-up. The instruments included the Hospital Anxiety and Depression Scale-Anxiety Subscale, Epidemiology Center Depression Inventory, Brief Illness Representation Scale, World Health Organization Quality of Life Scale, sphygmomanometer, and Check My Heart V 3.0 handheld HRV apparatus. Data were analyzed by using generalized estimating equation (GEE). Results: Compared to the patients in the control group at posttest, one-month follow-up, and three-month follow-up, the patients in experimental group have a significant reduce on the scores of Hospital Anxiety and Depression Scale-Anxiety Subscale(p < 0.001);a significant reduce on the scores of Epidemiology Center Depression Inventory(p < 0.001);a significant reduce on the scores of Brief Illness Representation Scale(p < 0.001);a significant reduce on the level of systolic blood pressure(p <0.001);a significant reduce of LF norm (p < 0.001);a significant improve of HF norm(p < 0.001);and a significant reduce of LF/HF ratio(p < 0.001). However, there is no significant difference between groups on the changes of the scores of World Health Organization Quality of Life Scale, and the level of diastolic blood pressure. Conclusion: Eye Movement Desensitization and Reprocessing intervention may improve anxiety, depression, negative illness representation, systolic blood pressure and heart rate variability in patients with hypertension.
Chen, Yin-Ju, and 陳盈如. "Variability of Supported Treadmill Stepping Movements and Its Relation to the Age of Walking Attainment in Preterm and Full-term Infants." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/90851089728295116629.
Повний текст джерела國立陽明大學
物理治療暨輔助科技學系
102
Background and purposes: Preterm infants are at risk for motor impairments related to movement variability. We aimed to investigate the relationship between the variability of stepping movements and the age of walking attainment in infants, and to compare the differences of variability of stepping movements between preterm and full-term infants. Methods: Twenty-seven preterm and 19 full-term infants (GA=29±4 vs. 39±1 weeks; BW=1.2±0.6 vs. 3.4±0.5 kg) were examined for supported stepping on a treadmill (0.2 m/s) at 7 and 9 months and age of walking attainment (independent walking ≧5 consecutive steps). Three dimensional stepping movements were collected using 2 synchronized 60-Hz video cameras and were analyzed using the Peak Performance Motion Analysis System. Variability of stepping movements was indexed using approximate entropy (ApEn), modified multiscale entropy (MMSE), and standard deviation (SD). The associations between ApEn, MMSE, and SD of step variables and walking outcome were examined using linear regression analysis and Cox's proportional-hazards regression analysis. The differences of ApEn, MMSE, SD of step variables, and AIMS scores between preterm and full-term infants and across time, and the change of stepping variability from the second last trial to the last trial were examined using repeated measure Analysis of Variance (ANOVA). Results: Regression analysis exhibited that a higher 9-months ApEn of ankle angle, a higher 7-months SD of knee angle, a higher 9-months SD of knee velocity, and a higher 9-months SD of ankle velocity were significantly associated with an older age of walking attainment when adjusted for prematurity. A significant time*group interaction effect for the ApEn of hip angle, the MMSE of knee velocity and acceleration, hip acceleration, and the SD of ankle acceleration, a significant time effect for the ApEn of knee angle, and a significant group effect for the ApEn of knee velocity, the SD of hip angle, ankle angle, and ankle velocity for were found. Compare to the second last trial, a higher ApEn of ankle angle and acceleration, and knee velocity, a higher MMSE of knee velocity and acceleration, and ankle acceleration, and a lower SD of all the hip variables at the last test trial than the second last test trial, a higher SD of all the knee and ankle step variables were found at the last test trial. Discussion: Increased irregularity in the motor behavior might reflect the reduction in the adaptability of a system which lead to late achievement of independent walking. Results of MMSE without prediction and group differences might be caused from the inappropriate algorithm for the data in this study. Both linear and nonlinear measurements had prediction for age of walking attainment indicated that they could provide different aspect for movement variability during supported treadmill stepping in infants. In conclusion, there were differences of stepping variability between preterm and full-term infants and prediction of stepping variability for age of walking attainment. ApEn was a more appropriate measurement than MMSE for the variability of stepping movement patterns in this study. In addition, we found the variability of hip movement control increased as the independent walking accomplished, yet variability of knee and ankle movement control decreased.