Feasibility of overnight electrical stimulation-induced muscle activation in people with a spinal cord injury. A Pilot study.,Spinal Cord Series and Cases

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Feasibility of overnight electrical stimulation-induced muscle activation in people with a spinal cord injury. A Pilot study.
Spinal Cord Series and Cases ( IF 0.7 ) Pub Date : 2020-01-24 , DOI: 10.1038/s41394-019-0254-0
Christof A J Smit ₁ , Frank Berenpas ₂ , Sonja de Groot _{1,

3} , Janneke M Stolwijk-Swuste ₄ , Thomas W J Janssen _{1,

2}

Affiliation

Study Design We investigated whether overnight ES is a feasible method to activate gluteal, quadriceps, and hamstrings muscles in a two-week experiment. Electrical stimulation (ES) induced muscle contractions have proven positive effects on risk factors for developing pressure ulcers in people with a spinal cord injury (SCI). Therefore prolonged overnight ES-induced muscle activation is interesting, but has never been studied. Objective To study feasibility of ES-induced leg muscle activation. In eight participants with motor complete SCI gluteal, hamstrings and quadriceps muscles were activated with a 2-weeks overnight stimulation protocol, 8 h per night, using specially developed ES-shorts. Setting The Netherlands. Methods Muscle fatigue was determined with a muscle contraction sensor. Questionnaires on sleep quality (SQ) and the ES-shorts usability were taken. Results After 8 h of activation muscles still contracted, although fatigue occurred, and mean contraction size was lower at the end of a cycle (p = 0.03). SQ (0-100) after intervention was 75, and 66 after 4 weeks without overnight ES (p = 0.04) indicating ES improves sleep quality. The usability of the ES-shorts was good. Conclusions This study shows that overnight ES-induced muscle activation using ES-shorts in SCI is a new, feasible method that does not interfere with sleep. The nightly use of the ES-shorts might be considered as an important part of the daily routine in SCI.

中文翻译：

脊髓损伤患者夜间电刺激诱导肌肉激活的可行性。试点研究。

研究设计我们在为期两周的实验中研究了隔夜 ES 是否是激活臀肌、股四头肌和腿筋肌肉的可行方法。电刺激 (ES) 诱导的肌肉收缩已被证明对脊髓损伤 (SCI) 患者发生压疮的危险因素有积极影响。因此，长时间过夜 ES 诱导的肌肉激活很有趣，但从未被研究过。目的探讨ES诱导腿部肌肉激活的可行性。在 8 名运动完全 SCI 参与者中，使用专门开发的 ES 短裤，通过为期 2 周的隔夜刺激方案（每晚 8 小时）激活臀肌、腿筋和股四头肌。设置荷兰。方法用肌肉收缩传感器测定肌肉疲劳。对睡眠质量 (SQ) 和 ES 短裤可用性进行了问卷调查。结果激活 8 小时后，尽管出现疲劳，肌肉仍然收缩，并且周期结束时平均收缩幅度较低 (p = 0.03)。干预后 SQ (0-100) 为 75，4 周无过夜 ES 后 SQ (0-100) 为 66 (p = 0.04)，表明 ES 改善睡眠质量。 ES短裤的可用性很好。结论这项研究表明，在 SCI 中使用 ES 短裤过夜诱导肌肉激活是一种新的、可行的方法，不会干扰睡眠。每晚使用 ES 短裤可能被视为 SCI 患者日常生活的重要组成部分。

更新日期：2020-01-24

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