PDF(Pubmed)
Abstract：
The Tendo Unit (TU) and GymAware (GA) are the two most frequently used linear transducers for assessing muscle power in older adults via the sit-to-stand (STS) test. Unlike TU, GA incorporates a sensor mechanism to correct for non-vertical movements, which may lead to systematic differences between devices. The aim of this study therefore was to compare GA to TU for measuring STS power in community-dwelling older adults. Community-dwelling adults (n = 51, aged ≥65 years, 61% female) completed a single chair stand, with peak power measured simultaneously using GA and TU. Participants also completed the pneumatic leg press, 8-Foot Up and Go (TUG) test, Short Physical Performance Battery (SPPB), and self-reported measures of physical function. Intraclass correlations (ICC) were used to assess agreement, and Pearson\'s correlations were used to assess correlations. The study protocol was prospectively registered on the Open Science Framework. In alignment with our pre-registered hypothesis, peak power demonstrated an ICC of 0.93 (95% CI: 0.88, 0.96). For secondary aims, both transducers showed a correlation greater than 0.8 compared to pneumatic leg press power. For physical performance outcomes, both TU and GA showed similar correlations, as hypothesized: SPPB (r = 0.29 for TU vs. 0.33 for GA), Chair Stands (r = -0.41 vs. -0.38), TUG Fast (r = -0.53 vs. -0.52), mobility questionnaire (r = 0.52 vs. 0.52) and physical function questionnaire (r = 0.44 vs. 0.43). GA and TU peak power showed a high degree of agreement and similar correlations with physical and self-reported performance measures, suggesting that both methods can be used for assessing STS power in older adults.
摘要：
Tendo单元（TU）和GymAware（GA）是两种最常用的线性传感器，用于通过坐立（STS）测试评估老年人的肌肉力量。不像TU,GA包含一个传感器机构来纠正非垂直运动，这可能会导致设备之间的系统性差异。因此，这项研究的目的是将GA与TU进行比较，以测量社区居住的老年人的STS能力。社区居住的成年人(n=51，年龄≥65岁，61%的女性）完成了单张椅子的站立，使用GA和TU同时测量峰值功率。参加者还完成了气动压腿，8英尺上升（TUG）测试，短物理性能电池（SPPB），和自我报告的身体机能测量。使用组内相关性(ICC)来评估协议，和Pearson的相关性被用来评估相关性。该研究方案在开放科学框架上进行了前瞻性注册。与我们预先注册的假设一致，峰值功率显示ICC为0.93（95%CI：0.88，0.96）。为了次要目标，与气动压腿功率相比，两个传感器均显示出大于0.8的相关性。对于身体表现结果，TU和GA都表现出相似的相关性，假设：SPPB(TU与TU的r=0.29GA为0.33)，椅子站立（r=-0.41vs.-0.38)，TUGFast(r=-0.53vs.-0.52),流动性问卷(r=0.52vs.0.52)和身体功能问卷(r=0.44vs.0.43)。GA和TU峰值功率与物理和自我报告的性能指标显示出高度的一致性和相似的相关性，这表明这两种方法都可以用于评估老年人的STS功率。
