@inproceedings{8c96180f44b3435c95bfdf6c82d22381,
title = "The relationship between the flexion synergy and stretch reflexes in individuals with chronic hemiparetic stroke",
abstract = "This study utilized a novel robotic device, the ACT-4D, to investigate the relationship between the flexion synergy and stretch reflexes in individuals with chronic hemiparetic stroke. Because the flexion synergy influences the amount of elbow flexor muscle activation present in the paretic limb during tasks requiring shoulder abduction loading, it was hypothesized that stretch reflexes may be modulated by expression of this abnormal muscle coactivation pattern. To test this hypothesis, the ACT-4D was used to enable 10 individuals with chronic hemiparetic stroke to generate varying amounts of shoulder abduction torque while concurrently receiving elbow extension position perturbations. It was found that increased expression of the flexion synergy led to greater reflex amplitudes as well as lower reflex velocity thresholds. The physiological basis of the flexion synergy is briefly discussed, as are the implications of the flexion synergy and stretch reflexes for purposeful movement.",
keywords = "chronic hemiparetic stroke, flexion synergy, robotics, stretch reflex",
author = "McPherson, {Jacob G.} and Stienen, {Arno H.A.} and Drogos, {Justin M.} and Dewald, {Julius P.A.}",
year = "2011",
doi = "10.1109/ICORR.2011.5975516",
language = "English",
isbn = "9781424498628",
series = "IEEE International Conference on Rehabilitation Robotics",
booktitle = "2011 IEEE International Conference on Rehabilitation Robotics, ICORR 2011 - Rehab Week Zurich 2011",
note = "Rehab Week Zurich 2011 - 2011 IEEE International Conference on Rehabilitation Robotics, ICORR 2011 ; Conference date: 27-06-2011 Through 01-07-2011",
}