School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, China (Hong Kong).
School of Gerontology and Long-term Care, College of Nursing, Taipei Medical University, Taipei City, Taiwan.
J Med Internet Res. 2024 Nov 1;26:e60183. doi: 10.2196/60183.
Smart wearable technology has potential benefits for promoting physical activity and preventing sarcopenia.
The purpose of this study was to explore the efficacy of a wearable activity tracker with 2-stage goal-setting for daily steps on older adults' physical activity and sarcopenia indicators.
The study used a clustered trial design and was conducted in March to June 2022. Participants were community-dwelling adults older than 60 years who were recruited from 4 community centers in Taipei City. The intervention was designed with 2-stage goals set to 5000 steps/day in the first 4 weeks and 7500 steps/day in the final 4 weeks while wearing a commercial wearable activity tracker. Data were collected by self-reported questionnaires, a body composition analyzer, a handle grip tester, and 5 sit-to-stand tests.
All 27 participants in the experimental group and 31 participants in the control group completed the 8-week intervention. Total and light-intensity physical activities, skeletal muscle index, and muscle strength increased, while sedentary time, BMI, and the waist circumference of participants decreased in the experimental group, with significant group-by-time interactions compared to the control group.
A wearable activity tracker with gradual goal-setting is an efficient approach to improve older adults' physical activity and sarcopenia indicators. Smart wearable products with behavioral change techniques are recommended to prevent sarcopenia in older adult populations.
智能可穿戴技术在促进身体活动和预防肌肉减少症方面具有潜在益处。
本研究旨在探讨具有 2 阶段目标设定的可穿戴活动追踪器对老年人身体活动和肌肉减少症指标的效果。
该研究采用聚类试验设计，于 2022 年 3 月至 6 月在台北市的 4 个社区中心进行。参与者为社区居住的 60 岁以上成年人，从社区中心招募。干预措施设计为 2 阶段目标，前 4 周设定为每天 5000 步，最后 4 周设定为每天 7500 步，同时佩戴商用可穿戴活动追踪器。数据通过自我报告问卷、身体成分分析仪、手柄握力测试器和 5 次坐站测试收集。
实验组的 27 名参与者和对照组的 31 名参与者均完成了 8 周的干预。实验组的总活动量和低强度活动量、骨骼肌指数和肌肉力量增加，而久坐时间、BMI 和腰围减少，与对照组相比，存在显著的组间时间交互作用。
具有逐步目标设定的可穿戴活动追踪器是改善老年人身体活动和肌肉减少症指标的有效方法。建议使用具有行为改变技术的智能可穿戴产品来预防老年人的肌肉减少症。
