Department of Physical Therapy, School of Rehabilitation, Hyogo University of Health Sciences, Hyogo, Japan.
Department of Physical Therapy, School of Rehabilitation, Hyogo University of Health Sciences, Hyogo, Japan.
Arch Gerontol Geriatr. 2018 May-Jun;76:41-47. doi: 10.1016/j.archger.2018.02.005. Epub 2018 Feb 13.
Increased physical activity (PA) is a crucial factor in the prevention of physical deterioration, and resistance training (RT) is also a common and effective intervention for older adults. However, the effects of PA as an adjunct to RT on frailty status remains unclear; therefore, we clarified the effect of a PA intervention with feedback, as an adjunct to resistance strength training, on the physical and mental outcomes of frail older adults.
We employed a randomized controlled trial. Community-dwelling frail older adults in Japan were recruited to participate. Forty-one participants (mean age 81.5) were randomly assigned to engage in a resistance training with PA (RPA group) or RT group for six months. Frailty status and frailty scores, which were measured according to the Cardiovascular Health Study criteria-muscle strength, mobility, instrumental activities of daily living, and health-related quality of life-were assessed.
Participants in the RPA group exhibited a significant increase in light-intensity PA, the number of steps taken daily (p < 0.05), and lower-limb muscle strength (p < 0.05) and a significant decrease in frailty scores. However, pre- and postintervention frailty status, instrumental activities of daily living, and health-related quality of life did not differ significantly.
Implementation of a PA intervention as an adjunct to RT is feasible, as it reduced frailty scores and increased lower-limb muscle strength and mobility in older adults with frailty symptoms.
增加身体活动（PA）是预防身体恶化的关键因素，阻力训练（RT）也是老年人常用且有效的干预措施。然而，PA 作为 RT 的辅助手段对虚弱状态的影响尚不清楚；因此，我们明确了 PA 干预措施（带反馈）作为阻力力量训练的辅助手段对虚弱老年人身体和心理健康结果的影响。
我们采用了随机对照试验。在日本招募了社区居住的虚弱老年人参与。41 名参与者（平均年龄 81.5 岁）被随机分配到进行阻力训练和 PA（RPA 组）或 RT 组，为期六个月。虚弱状态和虚弱评分根据心血管健康研究标准进行评估 - 肌肉力量、移动性、日常生活活动的工具性和健康相关生活质量。
RPA 组参与者的轻强度 PA、每日步数（p<0.05）以及下肢肌肉力量显著增加（p<0.05），虚弱评分显著降低。然而，干预前后的虚弱状态、日常生活活动能力和健康相关生活质量没有显著差异。
将 PA 干预作为 RT 的辅助手段是可行的，因为它可以降低虚弱评分并增加虚弱症状老年人的下肢肌肉力量和移动性。
