Israel Gerontological Data Center, Paul Baerwald School of Social Work and Social Welfare, The Hebrew University in Jerusalem, Mount Scopus, Jerusalem 91905-IL, Israel.
Aging Ment Health. 2012;16(5):608-16. doi: 10.1080/13607863.2011.644264.
To clarify whether physical activity among older Americans is associated with depressive symptoms, beyond the effects of social network type, physical health, and sociodemographic characteristics.
The analysis used data from a sub-sample, aged 65–85, from the National Social Life, Health and Aging Project (N=1349). Hierarchical regressions examined the respective effects of selected network types and extent of engagement in physical activity on depressive symptoms, controlling for physical health and sociodemographic background.
The findings showed that physical activity was correlated inversely with late life depressive symptoms. However, when interaction terms for the selected social network types and the extent of physical activity were also considered, the main effect of social network on depressive symptoms increased, while that of physical activity was eliminated.
The results show that older American adults embedded in family network types are at risk of limited physical activity. However, interventions aimed to increase their engagement in physical activity might help to reduce depressive symptoms within this group.
在考虑社会网络类型、身体健康和社会人口特征等因素的影响之外，明确美国老年人的身体活动与抑郁症状之间的关系。
该分析使用了来自国家社会生活、健康和老龄化项目（N=1349）中年龄在 65-85 岁的子样本数据。分层回归检验了选定的网络类型和身体活动参与程度对抑郁症状的各自影响，同时控制了身体健康和社会人口背景。
研究结果表明，身体活动与晚年抑郁症状呈负相关。然而，当考虑到所选社会网络类型和身体活动程度的交互项时，社会网络对抑郁症状的主要影响增加，而身体活动的影响则被消除。
结果表明，嵌入家庭网络类型的美国老年成年人身体活动受限的风险较高。然而，旨在增加他们身体活动参与度的干预措施可能有助于减少该群体的抑郁症状。
