Moderators and mediators of exercise-induced objective sleep improvements in midlife and older adults with sleep complaints.

ABSTRACT:

Objective

Exercise can improve sleep quality, but for whom and by what means remains unclear. We examined moderators and mediators of objective sleep improvements in a 12-month randomized controlled trial among underactive midlife and older adults reporting mild/moderate sleep complaints.

Methods

Participants (N = 66, 67% women, 55-79 years) were randomized to moderate-intensity exercise or health education control. Putative moderators were gender, age, physical function, self-reported global sleep quality, and physical activity levels. Putative mediators were changes in BMI, depressive symptoms, and physical function at 6 months. Objective sleep outcomes measured by in-home polysomnography were percent time in Stage I sleep, percent time in Stage II sleep, and number of awa

SUBMITTER: Buman MP 

PROVIDER: S-EPMC3210555 | biostudies-literature | 2011 Sep

REPOSITORIES: biostudies-literature