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Tesi sul tema "Stretch reflex"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 agosto 2024

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1

Cathers, Ian Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Stretch signal and muscle state dependence of the tonic stretch reflex." Awarded by:University of New South Wales. School of Electrical Engineering and Telecommunications, 2000. http://handle.unsw.edu.au/1959.4/17807.

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Abstract (sommario):

When active skeletal muscle is stretched, it generally responds with a contraction which resists the stretch. This response is termed the muscle stretch reflex. The size (gain) and timing (phase) of the response has been found to depend on many factors including the characteristics of the applied stretch, the muscle contraction level and the subject's intention. Investigations of this stretch reflex have often involved stretches to muscle which contained frequencies either beyond the range of voluntary movement or else which could be consciously tracked. This study sought to characterise the f

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2

Bock, Przemek John. "Modulation of stretch reflex excitability in quiet human standing." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82471.

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Stretch reflex excitability was measured during quiet standing by using a bilateral electro-hydraulic actuator to apply perturbations of angular position to the ankle. Subjects were instructed to stand quietly while pulse displacements were applied at random times. Position, torque, gastrocnemius-soleus EMG, tibialis anterior EMG, heel position, tibia angle, femur angle, and sacrum angle were measured. Background torque and reflex excitability varied substantially from trial to trial---reflex torque decreased as the background torque level increased; while reflex EMG increased when back

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3

Duncan, Audrey. "Reflex modulation in human movement and posture." Thesis, University of Birmingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367627.

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Human soleus H-reflex gain was measured in supine lying and in standing vertically while stabilised by a backboard. H-reflex amplitude was less in stabilised standing than in supine lying. The reduction was partly due to the effect of gravitational load. When the same load was applied (by compression of the body between shoulders and feet) while lying supine the corresponding reduction was 70%. The results are discussed in relation to possible gravitational load receptors. In a second series of experiments a collapsible landing platform was used to differentiate between reflex and programmed c

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4

Arbat, i. Plana Ariadna. "Modulation of the stretch reflex arc to improve functional recovery after peripheral nerve injury." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/394061.

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Després d’una lesió del sistema nerviós perifèric, aquest té la capacitat de regenerar però la seva recuperació funcional sol ser limitada, principalment degut a la inespecificitat de la reinnervació dels òrgans perifèrics i als canvis plàstics maladaptatius de la circuiteria espinal. En aquesta tesi hem volgut modular els canvis a la circuiteria espinal del reflex d’estirament per poder millorar la recuperació funcional després de lesions del nervi perifèric en un model animal. En primer lloc, es va dur a terme una caracterització immunohistoquímica dels canvis que patien les motoneurones e

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5

Tung, James 1975. "Task-dependent modulation of stretch reflex stiffness in the ankle." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=79266.

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Abstract (sommario):

The stretch reflex is an involuntary contraction produced in response to muscle stretch. Despite extensive research, its role in the control of movement and posture remains controversial. One reason for this is that the torque output produced by reflex activity has been studied in only a limited number of tasks and behaviours. The main thrust of this thesis is to examine whether the central nervous system (CNS) modifies stretch reflex properties to suit the task.<br>An electro-hydraulic actuator applied perturbations to the ankles of five subjects while they performed position-matching (PM) an

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6

Calota, Andra. "Reliability of spasticity measurement based on tonic stretch reflex threshold." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=111947.

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Studies suggest that deficits in central regulation of stretch reflex thresholds (SRT) underlie both spasticity and other disorders of motor control. We investigated intra- and inter-evaluator reliability to quantify spasticity based on tonic SRT (TSRT) and the relationship between TSRT and Modified Ashworth Scale (MAS, clinical assessment of resistance to stretch). Spasticity was evaluated in 20 subjects with chronic stroke-related spasticity in two different days, by three evaluators. Twenty different velocity-dependent dynamic SRT (angle where biceps brachii EMG signal increased for a given

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7

Vedula, Siddharth. "Ankle stretch reflexes during anticipatory postural adjustments." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:8881/R/?func=dbin-jump-full&object_id=32517.

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8

Horstman, Gabrielle Marie. "Limitations of Functional Recovery of Stretch Reflex Circuitry After Peripheral Nerve Regeneration." Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1347852976.

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9

Salazar-Torres, Jose de Jesus. "Biomechanical analysis of stretch reflex responses : an approach to spasticity measurement." Thesis, University of Newcastle Upon Tyne, 2005. http://hdl.handle.net/10443/2038.

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Abstract (sommario):

Spasticity is a clinical condition that may develop in people with central nervous system injuries. It is believed that spasticity results from changes in the excitability of the stretch reflex pathways manifesting clinically as a velocity dependent increase in resistance to passive movement (RTPM) and exaggerated tendon jerks. Stretch reflex excitability is influenced by neural (e.g. feed-forward and feedback mechanisms) and biomechanical components (e.g. muscle length). The objective of this work was to quantify the stretch reflex parameters of the biceps brachii under different initial cond

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10

Lederman, Eyal. "The effect of manual therapy techniques on the neuromuscular system." Thesis, King's College London (University of London), 1999. https://kclpure.kcl.ac.uk/portal/en/theses/the-effect-of-manual-therapy-techniques-on-the-neuromuscular-system(3764f2dc-c18b-4f37-a1aa-0bcc0abe64ec).html.

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11

Chitre, Rohit Dilip. "Modeling the reflex-mediated mechanical response to muscle stretch in normal subjects and spasticity patients /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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12

Parameswaran, Luckshman. "The effects of passive joint movement on human ankle stretch reflex dynamics." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29621.pdf.

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13

Parameswaran, Luckshman. "The effects of passive joint movement on human ankle stretch reflex dynamics /." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27248.

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Abstract (sommario):

The role of the monosynaptic stretch reflex in the realm of human motor activity has been controversial for many years. A non-linear parallel-cascade system identification technique was recently developed to non-invasively elucidate the ankle reflex dynamics. Identification of these dynamics requires the application of stochastic signals to the ankle joint. The stretch reflex is known to be highly modulated and attenuated during on-going cyclical movements and passively applied perturbations. The aim of this study was to investigate these effects.<br>The stretch reflex gain was found to decrea

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14

El-Sakkary, Baher. "Modulation of stretch reflex excitability with postural sway in the frontal plane." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18291.

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Abstract (sommario):

The stretch reflex response helps control upright stance by countering the effects of gravity. It has been suggested that sway in the sagittal or anterior-posterior (AP) plane contributes to the modulation of the reflex response; this thesis sought to examine if a similar relationship could be discerned between sway in the frontal or medial-lateral (ML) plane and the reflex. The sway in the ML plane was characterized by changes in the center of pressure (COP) and in the vertical forces between the feet. Two experiments were carried out. The results of the first experiment, which observed t

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15

Mohi, Amr. "Analysis of Stretch Reflex Responses in Mice Lacking Munc18-1 in Proprioceptors." Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright15160256865382.

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16

Loew, Emily. "Comparison of Flexor Carpi Ulnaris Hoffmann Reflex at Different Levels of Elbow Stretch." University of Toledo / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1556792929213981.

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17

Horslen, Brian Christopher. "Postural threat-induced modulation of stretch reflex pathways in static and dynamic postural control." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/28643.

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Abstract (sommario):

There are clear changes to human static and dynamic postural control in situations of elevated postural threat (e.g. standing at the edge of an elevated platform). One possible explanation for these changes is that the amount of afferent information from muscle spindles in the ankle musculature is altered by postural threat. Two experiments have been conducted to explore postural threat-induced changes to soleus spinal stretch reflex function during static control of posture (Study 1), and in response to dynamic postural disturbances (Study 2). In Study 1, soleus Hoffmann (H-) and tendon stret

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18

Ruffner, Kayla L. "THE EFFECTS OF ESTROGEN PEAKS ON THE STRETCH REFLEX RESPONSE DURING THE MENSTRUAL CYCLE." Cleveland State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=csu1579519542553163.

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19

Rumsey, John. "Tissue Engineered Myelination and the Stretch Reflex Arc Sensory Circuit: Defined Medium Formulation, Interface Design and Microfabrication." Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3904.

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Abstract (sommario):

The overall focus of this research project was to develop an in vitro tissue-engineered system that accurately reproduced the physiology of the sensory elements of the stretch reflex arc as well as engineer the myelination of neurons in the systems. In order to achieve this goal we hypothesized that myelinating culture systems, intrafusal muscle fibers and the sensory circuit of the stretch reflex arc could be bioengineered using serum-free medium formulations, growth substrate interface design and microfabrication technology. The monosynaptic stretch reflex arc is formed by a direct synapse b

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20

O'Sullivan, Maeve C. "The development of the phasic stretch reflex in man and its pathophysiology in central motor disorders." Thesis, University of Newcastle Upon Tyne, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287173.

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21

Rollins, Korynne Sierra. "Bradykinin does not acutely sensitize the reflex pressor response during hindlimb skeletal muscle stretch in decerebrate rats." Thesis, Kansas State University, 2018. http://hdl.handle.net/2097/38617.

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Abstract (sommario):

Master of Science<br>Department of Kinesiology<br>Steven Copp<br>Hindlimb skeletal muscle stretch (i.e., selective activation of the muscle mechanoreflex) in decerebrate rats evokes reflex increases in blood pressure and sympathetic nerve activity. Bradykinin has been found to sensitize mechano-gated channels through a bradykinin B2 receptor-dependent mechanism. Moreover, bradykinin B2 receptor expression on sensory neurons is increased following chronic femoral artery ligation in the rat (a model of simulated peripheral artery disease). We tested the hypothesis that, in decerebrate, unanes

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22

Louder, Talin. "Establishing a Kinetic Assessment of Reactive Strength." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6004.

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Abstract (sommario):

The reactive strength index (RSI) is the current “gold standard” assessment of reactive strength. Traditional measures of reactive strength, including the RSI, are not strength-based and are founded using untested theoretical assumptions. The purpose of this study was to develop two versions of a kinetic-based paradigm of reactive strength (New and AdjNew) and compare them against the Coefficient of Reactivity (CoR) and the RSI. Twenty one NCAA Division I basketball players and 59 young adults from the general population performed two reactive strength protocols: Progressive drop jumping and r

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23

Titus, Haley E. "Reorganization of Ia afferent synapses on motoneurons after peripheral nerve injuries." Wright State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=wright1245378110.

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24

Das, Mainak. "TISSUE ENGINEERING THE MOTONEURON TO MUSCLE SEGMENT OF THE STRETCH REFLEX ARC CIRCUIT UTILIZING MICRO-FABRICATION, INTERFACE DESIGN AND DEFINED MEDIUM FORMULATION." Doctoral diss., University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4491.

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Abstract (sommario):

The stretch reflex circuit is one of the most primitive circuits of mammalian system and serves mainly to control the length of the muscle. It consists of four elements: the stretch sensor (muscle spindle/ intrafusal fiber lie parallel between extrafusal, contractile musculature), extrafusal muscle fiber, sensory neuron and motoneuron. The basic principle of the stretch reflex arc circuit is as follows: whenever there is a sudden stretch in a muscle, it needs to compensate back to its original length so as to prevent any kind of injury. It performs this compensation process using a simple nega

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25

Lacey, Lauren Elizabeth. "Assessment of repetitive facilitation exercise with fMRI-compatible rehabilitation device for hemiparetic limbs." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51879.

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Abstract (sommario):

In order for stroke subjects to gain functional recovery of their hemiparetic limbs, facilitation techniques such as the repetitive facilitation exercise, or RFE, have been developed. Currently, there is a lack of understanding of the neural mechanisms associated with these types of facilitation techniques. To better understand the neural mechanisms associated with the RFE a functional magnetic resonance imaging (fMRI) study should be conducted. This thesis presents experimental results testing the feasibility of implementing an fMRI-compatible actuator to facilitate a myotatic reflex in synch

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26

Zeren, Zekai Uygur. "Simulation Of A 1-d Muscle Model In Simulink." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12609193/index.pdf.

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Abstract (sommario):

The most basic property of a muscle is its ability to contract and produce force when stimulated. A muscle is mainly composed of cells consisting of myofibrils with its basic unit called as a sarcomere. A sarcomere is composed of actin and myosin responsible for the muscle contraction. The Hill-type muscle model is the most commonly used model to simulate the behavior of a muscle. A muscle can produce its maximum force at isometric conditions. The level of force produced in the muscle is determined by the the frequency of the signals from the CNS. The force production is also a function of for

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27

Ross, Kyla Turpin. "Quantitative Analysis of Feedback During Locomotion." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14110.

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It is known that muscles possess both intrinsic and reflexive responses to stretch, both of which have been studied extensively. While much is known about heterogenic and autogenic reflexes during XER, these have not been well characterized during locomotion. In this study, we mapped the distribution of autogenic and heterogenic feedback in hindlimb extensor muscles using muscle stretch in the spontaneously locomoting premammillary decerebrate cat. We used natural stimulation and compared stretch-evoked force responses obtained during locomotion with those obtained during XER. The goal was to

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28

Dai, Yiyun. "The pattern of sensory axonal endings together with synaptic transmission influence the development of proprioceptive circuits in the spinal cord." Wright State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1547921267000115.

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29

Poliakov, Andrew Victor. "Stretch reflexes in human masseter /." Title page, table of contents and abstract only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09php766.pdf.

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30

Nikitina, Tatiana. "An asymmetric bilateral model of stretch reflexes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0002/MQ44031.pdf.

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31

Nikitina, Tatiana. "An asymmetric bilateral model of stretch reflexes /." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20512.

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Abstract (sommario):

A bilateral stretch reflex model was built based on asymmetric agonist---antagonist reflex connections at the ankle. The overall dynamics were analyzed using Mason's rule algebra. The model predicts the characteristic agonist and antagonist responses to stretch. Simulations with pulse displacements and random perturbations are in qualitative agreement with experimental data and suggest a mechanism whereby the mean absolute velocity of the perturbations could depress the stretch reflex at the spinal level. This implies that spinal neural circuits can calculate and carry out their own integrativ

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32

Castillo, Andrea Amaral. "Tônus muscular = uma contribuição para os estudos em imagem corporal." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/275086.

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Orientador: Maria da Consolação Gomes Cunha Fernandes Tavares<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Educação Física<br>Made available in DSpace on 2018-08-18T10:27:09Z (GMT). No. of bitstreams: 1 Castillo_AndreaAmaral_M.pdf: 1424495 bytes, checksum: 2e616dc1accf2266891ba1011fc14c1e (MD5) Previous issue date: 2011<br>Resumo: A Imagem Corporal foi conceituada por Paul Schilder (1999) como a representação mental do corpo. Neste conceito ele aponta para uma abordagem sistêmica dos aspectos fisiológicos, psíquicos, sociais e culturais no processo dinâmico da

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33

Goodwin, C. N. "Vibration- and strech-evoked reflexes in human flexor carpri radialis." Thesis, University of Manchester, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383131.

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34

Le, Bozec Serge. "aspects et bases de la synergie des muscles agonistes chez l'Homme." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37599038x.

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35

Vieira, Débora. "Influência do treinamento motor com biofeedback eletromiográfico na reabilitação da espasticidade após ave e a caracterização da atividade cortical correlata." Universidade Federal de Uberlândia, 2016. https://repositorio.ufu.br/handle/123456789/17968.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>A espasticidade é observada na maioria dos pacientes após Acidente Vascular Encefálico (AVE), e exercem influência na presença de deficiências e incapacidades, comprometendo a função motora. As estratégias de neuroreabilitação, o biofeedback eletromiográfico (EMG), têm sido utilizado com aceitação na comunidade médica para reajustes nas habilidades sensório-motoras como retreinamento motor, redução da espasticidade e/ou treinamento de relaxamento. A intervenção ainda apresenta evidências delimitadas quanto a sua efetividade na re

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36

Cathers, Ian. "Stretch signal and muscle state dependence of the tonic stretch reflex /." 2000. http://www.library.unsw.edu.au/~thesis/adt-NUN/public/adt-NUN20010831.131852/index.html.

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37

Lai, Chun-Hui, and 賴俊輝. "Quantitative Analysis of Stretch Reflex in Hemiparetic Subjects." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/01795641530968582391.

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碩士<br>國立成功大學<br>醫學工程學系<br>84<br>The existing clinical measures for spasticity, by determining the resistance to external imposed passive movement of a joint, are usually subjective and qualitative. The aim of this research is to improve a spasticity measurement system, developed in our pervious study, for the quantification of stretch reflex of the impaired limbs. The spasticity measurement system consists of real-time controlled servemotor, torque sensor, and EMG surface recording electrod

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38

Wang, Guan-Jhih, and 王冠智. "Effects of Muscle Vibration on Stretch Reflex of Fingers." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/00126696715884478349.

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碩士<br>國立交通大學<br>機械工程系所<br>97<br>Previous studies have shown that muscle vibration, below the threshold of inducing illusory movement or tonic vibration reflex, could modulate motor-evoked potential (MEP) of pathways controlling hand muscles in intact and chronic stroke individuals. It is evident that this type of sub-threshold muscle vibration provides corticomotor modulations on the pathways controlling the vibrated and adjacent non-vibrated muscles. However, spinal-level contribution to the muscle vibration-induced changes in MEPs is not clear. The purpose of this study was to investigate t

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Huang, Ying-Zu, and 黃英儒. "Quantification of the Spasticity by Stretch Reflex and Reciprocal Inhibition." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/29246114414960081755.

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Abstract (sommario):

碩士<br>國立成功大學<br>醫學工程研究所<br>87<br>Spasticity is a common sequela of an anatomic or physiologic anomaly of the central nervous system. It has been defined as a motor disorder characterized by a velocity-dependent increase in tonic stretch reflexes with exaggerated tendon jerks. In clinical evaluation, spasticity is usually assessed by subjectively determining the resistance of a joint to an externally imposed passive movement, and lacks a good quantification tool. In this study, an on-line spasticity measurement system was developed for quantifying the stretch reflex by stretching the

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40

Lin, Po-Chieh, and 林柏伽. "Effect of Muscle Vibration on Stretch Reflex of Finger Post Stroke." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/70652937524228659438.

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Abstract (sommario):

碩士<br>國立交通大學<br>機械工程學系<br>99<br>Previous studies have shown that muscle vibration (MV), below the threshold of inducing illusory movement or tonic vibration reflex, could modulate motor-evoked potentials (MEPs) of pathways controlling hand muscles in intact individuals. It is evident that this type of sub-threshold muscle vibration provides corticomotor modulations on the pathways controlling the vibrated and adjacent non-vibrated muscles. However, spinal-level contribution to the muscle vibration-induced changes in MEPs is not clear. We proposed a systematic approach for inducing and quantif

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41

Palomino, Andres Felipe. "Rhythmic arm cycling differentially modulates stretch and H-reflex amplitudes in soleus muscle." Thesis, 2011. http://hdl.handle.net/1828/3401.

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Abstract (sommario):

During rhythmic arm cycling soleus H-reflex amplitudes are reduced by modulation of group Ia presynaptic inhibition (Frigon et al, 2004). This reflex suppression is graded with the frequency of arm cycling (Loadman & Zehr 2007; Hundza & Zehr 2009) and 0.8 Hz is the minimum frequency to significantly reduce the soleus H-reflex (Hundza & Zehr 2009). Despite the data on modulation of the soleus H-reflex amplitude induced by rhythmic arm cycling, comparatively little is known about the modulation of stretch reflexes due to remote limb movement. Therefore, the present study was intended to explore

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Hayes, Bradley T. "The neuromuscular effects of a long-term static stretching program on the human soleus." 2006. http://www.oregonpdf.org.

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Thesis (Ph. D.)--Oregon State University, 2006.<br>Blank pages 143 and 159 not microfilmed. Includes bibliographical references. Also available online (PDF file) by a subscription to the set or by purchasing the individual file.

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PRUSZYNSKI, JEDRZEJ (ANDREW). "INVESTIGATING THE SOPHISTICATION OF LONG-LATENCY STRETCH RESPONSES DURING POSTURAL CONTROL OF THE UPPER LIMB." Thesis, 2011. http://hdl.handle.net/1974/6278.

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Abstract (sommario):

A recent theory of motor control, based on optimal feedback control, posits that voluntary motor behaviour involves the sophisticated manipulation of sensory feedback. Although this theory can explain how people move in the world, it does not specifically describe how this control process is implemented by the nervous system. In this thesis, we propose and explore one physiological implication of this theory. Specifically, we hypothesize that rapid feedback responses should possess the key functional attributes of voluntary control because these two systems share a common neural pathway throug

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Sanderson, Bailey. "GsMTx4 reduces the pressor response during dynamic hindlimb skeletal muscle stretch in decerebrate rats." Thesis, 2018. http://hdl.handle.net/2097/39112.

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Abstract (sommario):

Master of Science<br>Department of Kinesiology<br>Steven W. Copp<br>Mechanical signals within contracting skeletal muscles contribute to the generation of the exercise pressor reflex; an important autonomic and cardiovascular control mechanism. In decerebrate rats, GsMTx4, a mechanically–activated channel inhibitor that is partially selective for piezo channels, was found recently to reduce the pressor response during static hindlimb muscle stretch; a maneuver used to investigate the mechanical component of the exercise pressor reflex (i.e., the mechanoreflex). However, the effect was found on

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Sung-Lang and 陳順郎. "Acute Anal Stretch Inhibits NMDA-Dependent Pelvic-Urethra Reflex Potentiation via Spinal GABAergic Inhibition in Anesthetized Rats." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/15387256124449940399.

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博士<br>中山醫學大學<br>醫學研究所<br>97<br>The impact of acute anal stretch on the pelvic-urethra reflex potentiation was examined in urethane-anesthetized rats by recording the external urethra sphincter electromyogram (EUSE) activity evoked by the pelvic afferent stimulation. Test stimulation (TS, 1 stimulation/30 sec) evoked a baseline reflex activity with a single action potential that was abolished by gallamine (5 mg/kg, i.v.). On the other hand, the repetitive stimulation (RS, 1 stimulation/1 sec) induced spinal reflex potentiation (SRP) that was attenuated by intrathecal CNQX (a glutamatergic AMPA

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Hsin-Ta, Lee, and 李信德. "Relationship of reaction time in heel rising with related posture, stretch reflex, muscle fitness or range of motion." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/97652465968017064222.

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碩士<br>臺北巿立體育學院<br>運動科學研究所<br>91<br>The purposes of this study were to examine the relationship of reaction time in heel rising with related posture, stretch reflex, muscle fitness or range of motion. Recruited were forty university students who did habitual exercise（19~23 years old, more than 3 days/week, more than 30 mins/day）. No disturbance existed before experiment, and sequences of measurement were randomized. Product-moment correlation of Carl Pearson were to used determine correlations between variables. The t-test and one-way ANOVA with a repeated design were used to test th

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Mohammadzadeh, Forough. "Mechanical strain stimulates JNK-mediated expression of matrix metalloproteinase-2 in endothelium /." 2004.

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Thesis (M.Sc.)--York University, 2004. Graduate Programme in Biology.<br>Typescript. Includes bibliographical references. Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url%5Fver=Z39.88-2004&res%5Fdat=xri:pqdiss &rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:MR11866

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Longo, Diego. "EFFECTS OF MUSCLE SHORTENING MANOEUVRE ON MOTOR CONTROL: A CLINICAL MODEL." Doctoral thesis, 2022. http://hdl.handle.net/2158/1275217.

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The Muscle Shortening Maneuver (MSM), a physiotherapy approach, was introduced by Grimaldi et al. in the eighties and is derived from Feldman’s λ model of motor control (Melchiorre, 2014). In the λ model the regulation of the stretch reflex threshold, that is the lower muscle length or joint angle at which motoneuronal recruitment occurs, plays a pivotal role (Feldman, 1995; Latash, 2010). The dynamic stretch reflex threshold (DSRT) is influenced by stretch speed. The tonic stretch reflex threshold (TSRT) represents the specific value of the DSRT at zero velocity. DSRTs and TSRTs are expressed

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高肇利. "Quantitative analysis of stretch reflexes in spastic subjects and spasticity measurement system setup." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/15945261794283001124.

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碩士<br>國立成功大學<br>醫學工程研究所<br>83<br>Spasticity in stroke, traumatic brain injury, and spinal cord injury often interferes the patientk's limb functions, and often combined with other motor deficits such as rigidity, ataxia, and flexor and extensor synergies. The existing clinical measures, by determining the resistance to external imposed passive movement of a joint, are usually subjective and qualitative. An objective and quantitative evaluation of the spastic hypertonia is highly needed for improving the treatment and rehabilitation process of cerebral stroke patients. The aim of this research

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