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Relevant bibliographies by topics / Tonic stretch reflex threshold

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Journal articles

Academic literature on the topic 'Tonic stretch reflex threshold'

Author: Grafiati

Published: 10 March 2023

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Journal articles on the topic "Tonic stretch reflex threshold"

1

Blanchette, Andreanne K., Aditi A. Mullick, Karina Moïn-Darbari, and Mindy F. Levin. "Tonic Stretch Reflex Threshold as a Measure of Ankle Plantar-Flexor Spasticity After Stroke." Physical Therapy 96, no. 5 (2016): 687–95. http://dx.doi.org/10.2522/ptj.20140243.

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Background Commonly used spasticity scales assess the resistance felt by the evaluator during passive stretching. These scales, however, have questionable validity and reliability. The tonic stretch reflex threshold (TSRT), or the angle at which motoneuronal recruitment begins in the resting state, is a promising alternative for spasticity measurement. Previous studies showed that spasticity and voluntary motor deficits after stroke may be characterized by a limitation in the ability of the central nervous system to regulate the range of the TSRT. Objective The study objective was to assess in

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2

Zhang, Li-Qun, Sun G. Chung, Yupeng Ren, Lin Liu, Elliot J. Roth, and W. Zev Rymer. "Simultaneous characterizations of reflex and nonreflex dynamic and static changes in spastic hemiparesis." Journal of Neurophysiology 110, no. 2 (2013): 418–30. http://dx.doi.org/10.1152/jn.00573.2012.

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This study characterizes tonic and phasic stretch reflex and stiffness and viscosity changes associated with spastic hemiparesis. Perturbations were applied to the ankle of 27 hemiparetic and 36 healthy subjects under relaxed or active contracting conditions. A nonlinear delay differential equation model characterized phasic and tonic stretch reflex gains, elastic stiffness, and viscous damping. Tendon reflex was characterized with reflex gain and threshold. Reflexively, tonic reflex gain was increased in spastic ankles at rest ( P < 0.038) and was not regulated with muscle contraction, ind

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3

Calancie, B., and P. Bawa. "Voluntary and reflexive recruitment of flexor carpi radialis motor units in humans." Journal of Neurophysiology 53, no. 5 (1985): 1194–200. http://dx.doi.org/10.1152/jn.1985.53.5.1194.

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The order of recruitment of flexor carpi radialis (FCR) motor units was studied during voluntary and reflexive activation of the motoneuron pool for two adult subjects. During slow "voluntary" activation, the recruitment threshold for tonic motoneuron firing was determined, and then the twitch profile of the motor unit was computed by the spike-triggered averaging technique. A positive correlation (r = 0.79 and 0.68 for the two subjects, respectively) between recruitment threshold and twitch amplitude implies that recruitment of FCR motoneurons during slow ramp isometric contractions proceeds

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4

Latash, Mark, Mindy Levin, John Scholz, and Gregor Schöner. "Motor control theories and their applications." Medicina 46, no. 6 (2010): 382. http://dx.doi.org/10.3390/medicina46060054.

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We describe several infl uential hypotheses in the field of motor control including the equilibrium-point (referent confi guration) hypothesis, the uncontrolled manifold hypothesis, and the idea of synergies based on the principle of motor abundance. The equilibrium-point hypothesis is based on the idea of control with thresholds for activation of neuronal pools; it provides a framework for analysis of both voluntary and involuntary movements. In particular, control of a single muscle can be adequately described with changes in the threshold of motor unit recruitment during slow muscle stretch

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5

Calota, Andra, and Mindy F. Levin. "Tonic Stretch Reflex Threshold as a Measure of Spasticity: Implications for Clinical Practice." Topics in Stroke Rehabilitation 16, no. 3 (2009): 177–88. http://dx.doi.org/10.1310/tsr1603-177.

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6

Calota, Andra, Anatol G. Feldman, and Mindy F. Levin. "Spasticity measurement based on tonic stretch reflex threshold in stroke using a portable device." Clinical Neurophysiology 119, no. 10 (2008): 2329–37. http://dx.doi.org/10.1016/j.clinph.2008.07.215.

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7

Marques, Isabela Alves, Maristella Borges Silva, Andrei Nakagawa Silva, Luiza Maire David Luiz, Alcimar Barbosa Soares, and Eduardo Lázaro Martins Naves. "Measurement of post-stroke spasticity based on tonic stretch reflex threshold: implications of stretch velocity for clinical practice." Disability and Rehabilitation 41, no. 2 (2017): 219–25. http://dx.doi.org/10.1080/09638288.2017.1381183.

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8

Frenkel-Toledo, Silvi, John M. Solomon, Akash Shah, et al. "Tonic stretch reflex threshold as a measure of spasticity after stroke: Reliability, minimal detectable change and responsiveness." Clinical Neurophysiology 132, no. 6 (2021): 1226–33. http://dx.doi.org/10.1016/j.clinph.2021.02.390.

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9

Balamurugan, S., Rachaveti Dhanush, and S. K. M. Varadhan. "Role of Post-Trial Visual Feedback on Unintentional Force Drift During Isometric Finger Force Production Tasks." Motor Control 26, no. 1 (2022): 1–14. http://dx.doi.org/10.1123/mc.2020-0031.

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A reduction in fingertip forces during a visually occluded isometric task is called unintentional drift. In this study, unintentional drift was studied for two conditions, with and without “epilogue.” We define epilogue as the posttrial visual feedback in which the outcome of the just-concluded trial is shown before the start of the next trial. For this study, 14 healthy participants were recruited and were instructed to produce fingertip forces to match a target line at 15% maximum voluntary contraction. The results showed a significant reduction in unintentional drift in the epilogue conditi

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10

Dutta, A., and A. Das. "Effects of transcutaneous lumbar spinal cord alternating current stimulation on tonic stretch reflex threshold in stroke - a case series." Brain Stimulation 8, no. 2 (2015): 371–72. http://dx.doi.org/10.1016/j.brs.2015.01.193.

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