Let's Walk: A Quasi-Experimental Multi-Component Intervention to Improve Physical Activity and Social Engagement for Older Chinese American Adults.

Physical activity (PA) is critical for healthy aging, yet < 16% of U.S. older adults meet federal recommendations for moderate to vigorous PA.

A Latent Deprivation Perspective: Mechanisms Linking Volunteering to Mental Health in Later Life.

This study tests the hypothesis that the latent deprivation model (LDM) can be extended to volunteer work, by exploring the extent to which two potential latent benefits of volunteer work-purpose in life and perceived social status-mediate the negative relationship between volunteerism and mental health (measured as depressive symptoms). Structural equation modeling with the full-information maximum likelihood (FIML) was adopted to model a sample of 5887 respondents from the Health and Retirement Study (HRS). The outcome was depressive symptoms; the independent variable was volunteering; and the mediators were "purpose in life" and "perceived social status.