Record Details

Impact of Voluntary Muscle Activation on Stretch Reflex Excitability in Individuals with Hemiparetic Stroke

Harvard Dataverse (Africa Rice Center, Bioversity International, CCAFS, CIAT, IFPRI, IRRI and WorldFish)

View Archive Info
 
 
Field Value
 
Title Impact of Voluntary Muscle Activation on Stretch Reflex Excitability in Individuals with Hemiparetic Stroke
 
Identifier https://doi.org/10.7910/DVN/ZG9KX8
 
Creator Patterson, Jacqueline
Dewald, Jules
Drogos, Justin
Gurari, Netta
 
Publisher Harvard Dataverse
 
Description Objective: To characterize how, following a stretch-induced attenuation, volitional muscle activation impacts stretch reflex activity in individuals with stroke
Methods: A robotic device rotated the paretic elbow of sixteen individuals with chronic hemiparetic stroke from 70° to 150° elbow flexion at an angular speed of 120°/s. This stretching sequence was repeated twenty times. Subsequently, participants volitionally activated their elbow musculature or rested. Finally, the stretching sequence was repeated another twenty times. The flexor and extensor stretch reflex activity was quantified as the net torque at 135° and 88°, respectively.
Results: The stretching sequence attenuated the flexion torque (p
 
Subject Medicine, Health and Life Sciences
Spasticity
Stroke
Motoneuron
Stretching
 
Contributor Patterson, Jacqueline