Publications by authors named "Ruxin He"
Changes in Spatiotemporal Variability of Muscular Response under the Influence of Post-stroke Spasticity.
IEEE Trans Neural Syst Rehabil Eng
November 2024
Article Synopsis
- Spasticity involves involuntary muscle activation caused by an overactive stretch reflex, but how this muscle activation varies in different individuals is not well understood.
- This study examined changes in muscle response variability in stroke survivors compared to healthy older and younger controls using high-density surface electromyography (HD-sEMG) during passive stretches at various speeds.
- Results indicated that stroke survivors had lower temporal variability in muscle activation than older controls, and this variability decreased with speed; the patterns of muscle activation were linked to the severity of spasticity, suggesting that more silencing of motoneurons led to synchronized motor unit recruitment.
Gait, as a fundamental human movement, necessitates the coordination of muscles across swing and stance phases. Functional electrical stimulation (FES) of the tibialis anterior (TA) has been widely applied to foot drop correction for patients with post-stroke during the swing phase. Although the gastrocnemius (GAS) during the stance phase is also affected, the Functional electrical stimulation of the gastrocnemius received less attention.
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