Son BK, PhD., Institute of Gerontology, Department of Geriatric Medicine, Graduate School of Medicine, Institute for Future Initiatives, The University of Tokyo, Tokyo, Japan, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan. Phone: 81 3 5800 6534, Fax: 81 3 5800 8837, E-mail:
J Frailty Aging. 2022;11(2):231-235. doi: 10.14283/jfa.2022.4.
Social detachment due to coronavirus disease (COVID-19) has caused a decline in physical activity, leading to sarcopenia and frailty in older adults. This study aimed to compare muscle mass, strength, and function values in older women before and after the first wave of the COVID-19 pandemic (April-May 2020). Furthermore, changes in muscle measures across women who experienced different levels of impact on their social participation due to the COVID-19 pandemic were examined. Muscle mass (total, trunk, and appendicular muscle), grip strength, oral motor skills, social interactions (social network and participation), and social support were assessed in 46 Japanese community-dwelling older women (mean, 77.5 y; range 66-93 y) before and after the first wave of the COVID-19 pandemic. Trunk muscle mass significantly decreased after the first wave of the pandemic. When comparing changed values between the enhanced/maintained and reduced group during the pandemic, significant group difference was observed in trunk muscular mass, grip strength, and oral motor skills. Intriguingly, those who enhanced social participation had a positive change of grip strength values, showing that social participation might influence muscle function during the COVID-19 pandemic.
由于冠状病毒病（COVID-19）导致的社交隔离导致身体活动减少，从而导致老年人出现肌肉减少症和虚弱。本研究旨在比较 COVID-19 大流行第一波（2020 年 4 月至 5 月）前后老年女性的肌肉质量、力量和功能值。此外，还研究了因 COVID-19 大流行而导致社交参与度不同的女性的肌肉测量值的变化。在 COVID-19 大流行第一波之前和之后，评估了 46 名日本社区居住的老年女性（平均年龄 77.5 岁；范围 66-93 岁）的肌肉质量（全身、躯干和四肢）、握力、口腔运动技能、社交互动（社交网络和参与）和社会支持。在大流行第一波之后，躯干肌肉质量显著下降。在比较大流行期间增强/维持和减少组之间的变化值时，在躯干肌肉质量、握力和口腔运动技能方面观察到显著的组间差异。有趣的是，那些增强社交参与度的人握力值有积极的变化，这表明社交参与度可能会影响 COVID-19 大流行期间的肌肉功能。
