Hand strengthening exercises in chronic stroke patients: Dose-response evaluation using electromyography

Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists
Jonas VinstrupLars L Andersen

Abstract

Cross-sectional. This study evaluates finger flexion and extension strengthening exercises using elastic resistance in chronic stroke patients. Eighteen stroke patients (mean age: 56.8 ± 7.6 years) with hemiparesis performed 3 consecutive repetitions of finger flexion and extension, using 3 different elastic resistance levels (easy, moderate, and hard). Surface electromyography was recorded from the flexor digitorum superficialis (FDS) and extensor digitorum (ED) muscles and normalized to the maximal electromyography of the non-paretic arm. Maximal grip strength was 39.2 (standard deviation: 12.5) and 7.8 kg (standard deviation: 9.4) in the nonparetic and paretic hand, respectively. For the paretic hand, muscle activity was higher during finger flexion exercise than during finger extension exercise for both ED (30% [95% confidence interval {CI}: 19-40] vs 15% [95% CI: 5-25] and FDS (37% [95% CI: 27-48] vs 24% [95% CI: 13-35]). For the musculature of both the FDS and ED, no dose-response association was observed for resistance and muscle activity during the flexion exercise (P > .05). The finger flexion exercise showed higher muscle activity in both the flexor and extensor musculature of the forearm than the finger extension exe...Continue Reading

Citations

Jan 16, 2020·European Journal of Physical and Rehabilitation Medicine·Fen-Ling KuoJui-Chi Lin
Oct 31, 2018·Journal of Neuroengineering and Rehabilitation·Néstor J Jarque-BouVerónica Gracia-Ibáñez
Jan 6, 2021·The American Journal of Occupational Therapy : Official Publication of the American Occupational Therapy Association·Hsin-Chieh LeeShih-Wei Huang
Jan 12, 2021·Annals of Physical and Rehabilitation Medicine·Emily J DaltonKathryn S Hayward

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