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Physical activity in early midlife has important implications for women's health. The present cross-sectional study investigated the relation of purposiveness to leisure-time physical activity, as mediated by health investment, in a sample of women in early midlife. Participants were 211 women between the ages of 35 and 45 years (mean 40.55 years, SD = 3.11) who responded to the second wave of the study of Midlife Development in the United States. Participants were originally selected by means of a nationally representative random-digit-dialing procedure. A structural equation analysis of data with latent variables was conducted with MPLUS. Purposiveness was indexed by measures of purpose in life, personal growth, and future planning. Health investment was indexed by thought and effort committed to health and the extent to which individuals worked hard to stay healthy. Leisure-time physical activity was indexed by both moderate and vigorous leisure-time activity. Results, controlling for sociodemographic factors, showed that purposiveness was associated with more physical activity and that the relation between purposiveness and leisure-time physical activity was fully mediated by health investment. These results suggest that women with a sense of purpose may be better able to achieve acceptable levels of physical activity.  相似文献   
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This article explores the contribution of self‐help/mutual aid groups to mental well‐being. Self‐help/mutual aid groups are self‐organising groups where people come together to address a shared a health or social issue through mutual support. They are associated with a range of health and social benefits, but remain poorly understood. This article draws on data from stage one of ESTEEM, a project which runs from 2010 to 2013. Stage one ran from 2010 to 2011 and involved participatory, qualitative research carried out in two UK sites. Twenty‐one groups were purposively selected to include a range of focal issues, longevity, structures and ethnic backgrounds. Researchers carried out 21 interviews with group coordinators and twenty group discussions with members to explore the groups' purpose, nature and development. Preliminary analysis of the data suggested that mental well‐being was a common theme across the groups. Subsequently the data were re‐analysed to explore the groups' contribution to mental well‐being using a checklist of protective factors for mental well‐being as a coding framework. The findings showed that groups made a strong contribution to members' mental well‐being by enhancing a sense of control, increasing resilience and facilitating participation. Group members were uplifted by exchanging emotional and practical support; they gained self‐esteem, knowledge and confidence, thereby increasing their control over their situation. For some groups, socio‐economic factors limited their scope and threatened their future. The article provides an evidence‐base which illustrates how self‐help/mutual aid groups can enhance mental well‐being. If supported within a strategy for social justice, these groups enable people with varied concerns to develop a tailored response to their specific needs. The authors suggest that policy‐makers engage with local people, investing in support proportionate to the needs of different populations, enabling them to develop their own self‐help/mutual aid groups to enhance their sense of mental well‐being.  相似文献   
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