Lou Shu-Zon, You Jia-Yuan, Tsai Yi-Chuan, Chen Yu-Chi
Department of Occupational Therapy, Chung Shan Medical University, Taichung 40201, Taiwan.
Occupational Therapy Room, Chung Shan Medical University Hospital, Taichung 40201, Taiwan.
Healthcare (Basel). 2021 Apr 20;9(4):485. doi: 10.3390/healthcare9040485.
The ability to perform sit-to-stand (STS) and back-to-sit (BTS) movements is important for the elderly to live independently and maintain a reasonable quality of life. Accordingly, this study investigated the STS and BTS motions of 28 healthy older adults (16 male and 12 female) under three different seat conditions, namely nonassisted, self-designed lifting seat, and UpLift seat. The biomechanical data were acquired using a three-dimensional (3D) motion analysis system and force plates, and were examined by one-way repeated-measures ANOVA to investigate the effects of the different seat conditions on the joint angle, joint moments, and movement duration time (α = 0.05). No significant difference was observed in the STS duration among the three test conditions. However, the BTS duration was significantly increased in the UpLift seat condition. Moreover, the peak flexion angle of the hip during STS motion was also significantly higher in the UpLift condition. For both motions (STS and BTS), the lifting seats significantly decreased the knee and hip joint moments, but significantly increased the ankle joint moment. Moreover, compared to the nonassistive seat, both assistive lifting seats required a greater ankle joint strength to complete the STS and BTS motions.
对于老年人来说，能够完成从坐到站（STS）和从站到坐（BTS）的动作对于独立生活和维持合理的生活质量非常重要。因此，本研究调查了28名健康老年人（16名男性和12名女性）在三种不同座椅条件下的STS和BTS动作，这三种条件分别为无辅助、自行设计的升降座椅和UpLift座椅。使用三维（3D）运动分析系统和测力板采集生物力学数据，并通过单向重复测量方差分析来研究不同座椅条件对关节角度、关节力矩和动作持续时间的影响（α = 0.05）。在三种测试条件下，STS持续时间未观察到显著差异。然而，在UpLift座椅条件下，BTS持续时间显著增加。此外，在UpLift条件下，STS动作期间髋关节的最大屈曲角度也显著更高。对于这两种动作（STS和BTS），升降座椅显著降低了膝关节和髋关节的力矩，但显著增加了踝关节的力矩。此外，与无辅助座椅相比，两种辅助升降座椅完成STS和BTS动作都需要更大的踝关节力量。
