Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan.
Int J Environ Res Public Health. 2021 Feb 26;18(5):2313. doi: 10.3390/ijerph18052313.
Social contact leads to an increased likelihood of engaging in physical activity (PA). However, the influence of social contact on PA would be different depending on the social contact source. This study aimed to identify the association of changes in social contact with family and non-family members with the change in PA using a parallel latent growth curve modeling.
Participants were randomly selected from among residents in the study area age ≥ 20 years ( = 7000). We conducted mail surveys in 2014, 2016, and 2019. The 1365 participants completed all surveys. PA was assessed with validated single-item physical activity measure. Social contact was assessed by summing frequencies of face-to-face and non-face-to-face contacts with family/relatives not living with the participant and friends/neighbors. Parallel latent growth curve modeling was used to assess the cross-sectional, prospective, and parallel associations of social contact with PA change.
There was a positive cross-sectional association between contact with friends/neighbors and PA, whereas prospective and parallel associations between contact with family/relatives and PA.
Contacting friends/neighbors did not predict the change in PA, and a high frequency of contact with family/relatives at baseline and increasing contact with family/relatives was associated with increased PA over 5-year.
社会接触会增加人们参与身体活动（PA）的可能性。然而，社会接触对 PA 的影响因社会接触源而异。本研究旨在使用平行潜增长曲线模型，确定与家庭成员和非家庭成员的社会接触变化与 PA 变化之间的关联。
从研究区域内≥20 岁的居民中随机选择参与者（n=7000）。我们在 2014 年、2016 年和 2019 年进行了邮件调查。共有 1365 名参与者完成了所有调查。PA 使用经过验证的单项体力活动测量进行评估。社会接触通过汇总与不与参与者同住的家庭成员/亲属以及朋友/邻居进行面对面和非面对面接触的频率来评估。使用平行潜增长曲线模型评估社会接触与 PA 变化的横断面、前瞻性和平行关联。
与朋友/邻居的接触与 PA 呈正横断面关联，而与家庭成员/亲属的接触与 PA 呈前瞻性和平行关联。
与朋友/邻居的接触并不能预测 PA 的变化，而与家庭成员/亲属的接触频率较高且接触频率增加与 5 年内 PA 的增加有关。
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