Stevens Mark, Cruwys Tegan
Research School of Psychology, The Australian National University, Canberra, ACT, Australia.
Ann Behav Med. 2020 Aug 8;54(8):557-566. doi: 10.1093/abm/kaaa003.
Physical activity tends to decline in older age, despite being key to health and longevity. Previous investigations have focused on demographic and individual factors that predict sustained physical activity.
To examine whether engaging in physical activity in the context of sport or exercise group membership can protect against age-related physical activity decline.
Drawn from the English Longitudinal Study of Ageing, participants were members of sport or exercise groups aged 50 and over (N = 2015) as well as nonmember controls, who were matched at baseline for age, sex, and physical activity levels (N = 1881). Longitudinal mixed effects models were used to assess the effect of sport or exercise group membership on physical activity and longevity across a 14-year follow-up.
Members of sport or exercise groups experienced an attenuated decline in both moderate and vigorous physical activity over a 14-year follow-up compared to physically active matched controls. Sport or exercise group members were also less likely to have died at follow-up, an effect that was mediated through sustained physical activity.
Promoting membership in sport and exercise groups may be a beneficial strategy for supporting sustained physical activity and health among older people.
尽管身体活动对健康和长寿至关重要,但在老年人中其往往会减少。以往的研究主要集中在预测持续身体活动的人口统计学和个体因素上。
研究参加体育或运动团体是否能预防与年龄相关的身体活动减少。
从英国老龄化纵向研究中选取年龄在50岁及以上的体育或运动团体成员(N = 2015)以及非成员对照(N = 1881),后者在基线时按年龄、性别和身体活动水平进行匹配。使用纵向混合效应模型评估在14年随访期间体育或运动团体成员身份对身体活动和长寿的影响。
与身体活动水平相匹配的对照相比,体育或运动团体成员在14年随访期间中度和剧烈身体活动的下降幅度较小。体育或运动团体成员在随访时死亡的可能性也较小,这一效应是通过持续的身体活动介导的。
促进体育和运动团体的成员参与可能是支持老年人持续身体活动和健康的有益策略。