REVAL - Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University, Martelarenlaan 42, 3500, Hasselt, Belgium.
Department of Rehabilitation Medicine, Research School CAPHRI, Maastricht University, Maastricht, Netherlands.
Eur J Pediatr. 2021 Aug;180(8):2505-2512. doi: 10.1007/s00431-021-04033-y. Epub 2021 Apr 19.
Upper limb motor fatigability is an important debilitating factor for activities of daily living in clinical pediatric populations. However, the reliability of fatigability protocols in these populations is currently unknown. Therefore, the current study investigates test-retest reliability of a static and dynamic motor fatigability protocol for grip and pinch strength in typically developing children (TDC). Eighty-nine TDC (35 boys, 54 girls; mean age 10 years 11 months) used a grip and pinch dynamometer for static (sustained) and dynamic (repeated) contractions during 30s. For static motor fatigability (SFI), mean (Fmean) and SD (Fvar) of force were calculated, and for dynamic motor fatigability, F mean and number of peaks (Npeaks) were calculated. Intraclass correlation coefficients (ICC) were calculated. ICCs of F mean in static and dynamic motor fatigability were high (ICC: 0.94-0.96 and 0.91-0.98). ICCs were moderate to high for F var (ICC: 0.67-0.85). The SFI showed moderate ICCs (ICC: 0.69-0.77). ICCs were moderate to high for N peaks (ICC: 0.78-0.91).Conclusion: The results suggest that static and dynamic motor fatigability in for grip and pinch can be used reliably in TD children aged 6-18 years. What is Known: •Psychometric properties of motor fatigability protocols using grip and pinch in children are lacking. •Motor fatigability in grip and pinch is an important debilitating symptom in multiple neurologic populations. What is New: •Static fatigability can be investigated using a 30-s maximum sustained grip strength protocol in children. •Dynamic fatigability can be investigated using a 30-s maximum repeated grip strength protocol in children.
上肢运动疲劳是临床儿科人群日常生活活动的一个重要致残因素。然而，目前尚不清楚这些人群疲劳协议的可靠性。因此，本研究调查了一种针对典型发育儿童（TDC）握力和捏力的静态和动态运动疲劳协议的测试-重测信度。89 名 TDC（35 名男孩，54 名女孩；平均年龄 10 岁 11 个月）使用握力和捏力测力计进行 30 秒的静态（持续）和动态（重复）收缩。对于静态运动疲劳（SFI），计算力的平均值（Fmean）和标准差（Fvar），对于动态运动疲劳，计算 Fmean 和峰值数（Npeaks）。计算了组内相关系数（ICC）。静态和动态运动疲劳中 Fmean 的 ICC 较高（ICC：0.94-0.96 和 0.91-0.98）。Fvar 的 ICC 为中度至高度（ICC：0.67-0.85）。SFI 的 ICC 为中度（ICC：0.69-0.77）。Npeaks 的 ICC 为中度至高（ICC：0.78-0.91）。结论：结果表明，6-18 岁 TDC 可可靠使用握力和捏力进行静态和动态运动疲劳测试。已知：•缺乏使用握力和捏力评估儿童运动疲劳协议的心理测量学特性。•握力和捏力的运动疲劳是多种神经人群的重要致残症状。新发现：•儿童可使用 30 秒最大持续握力测试进行静态疲劳研究。•儿童可使用 30 秒最大重复握力测试进行动态疲劳研究。
