Effects of integrated volitional control electrical stimulation (IVES) on upper extremity function in chronic stroke

Tomofumi Yamaguchi, Shigeo Tanabe, Yoshihiro Muraoka, Syuji Imai, Yoshihisa Masakado, Kimitaka Hase, Akio Kimura, Meigen Liu

研究成果: Article査読

19 被引用数 (Scopus)

抄録

We evaluated the efficacy of a novel electromyogram (EMG)-controlled electrical stimulation system, called the integrated volitional control electrical stimulator (IVES), on the recovery of upper extremity motor functions in patients with chronic hemiparetic stroke. Ten participants in the chronic stage (more than 12 months post-stroke with partial paralysis of their wrist and fingers) received treatment with IVES to the extensor carpi radialis and extensor digitorum communis 6 h/day for 5 days. Before and after the intervention, participants were assessed using upper-extremity Fugl-Meyer motor assessment (FMA), the active range of motion (A-ROM), the nine-hole peg test (NHPT), and surface EMG recordings. The upper extremity FMA showed a statistically significant increase from 50.8 ± 5.8 to 56.8 ± 6.2 after the intervention (P < 0.01). The A-ROM of wrist extension was also significantly improved from 36.0° ± 15.4° to 45.0° ± 15.5° (P < 0.01). The NHPT significantly decreased from 85.3 ± 52.0 to 63.3 ± 29.7 (P = 0.04). EMG measurements demonstrated statistically significant improvements in the coactivation ratios for the wrist flexor and extensor muscles after the intervention. This study suggested that 5 days of IVES treatment yields a noticeable improvement in upper extremity motor functions in patients with chronic hemiparetic stroke.

本文言語English
ページ(範囲)90-95
ページ数6
ジャーナルKeio Journal of Medicine
60
3
DOI
出版ステータスPublished - 06-2011
外部発表はい

All Science Journal Classification (ASJC) codes

  • 医学(全般)

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