Faculty of Health, Medicine, Nursing and Behavioural Sciences, Deakin University, Burwood, Victoria, Australia.
J Sport Exerc Psychol. 2010 Feb;32(1):23-38. doi: 10.1123/jsep.32.1.23.
This study examined the role of leisure-time physical activity in reducing the impact of high life stress and time pressure on depression, a buffer effect, for mothers of infants. A direct association between leisure-time physical activity and depression, regardless of both sources of stress, was also tested. A sample of approximately 5,000 mothers of infant children completed questionnaires that measured demographic characteristics, frequency of participation in leisure-time physical activity, life stress, time pressure, and depression (depressive symptoms). Hierarchical multiple regression incorporating an interaction component to represent the buffering effect was used to analyze the data. Frequency of leisure-time physical activity was significantly associated with lower levels of depressive symptoms for both types of stress and acted as a buffer of the association between life stress and depressive symptoms, but did not buffer the influence of time pressure on depressive symptoms. These findings indicated that leisure-time physical activity assists in maintaining the mental health of mothers of infants; however, caution is needed when promoting physical activity for mothers who feel under time pressure.
本研究考察了休闲时间体力活动在减轻生活压力和时间压力对婴儿母亲抑郁影响方面的作用，即缓冲效应。同时还测试了休闲时间体力活动与抑郁之间的直接关联，而不考虑这两个压力源。大约有 5000 名婴儿母亲完成了问卷调查，问卷内容包括人口统计学特征、休闲时间体力活动的参与频率、生活压力、时间压力和抑郁（抑郁症状）。采用包含交互成分的分层多重回归来分析数据，以代表缓冲效应。休闲时间体力活动的频率与两种压力源的抑郁症状水平呈显著负相关，并且作为生活压力与抑郁症状之间关联的缓冲剂，但并没有缓冲时间压力对抑郁症状的影响。这些发现表明，休闲时间体力活动有助于维持婴儿母亲的心理健康；然而，对于感到时间压力的母亲，在推广体育活动时需要谨慎。
