The Effect of Structured Exercise on Sleep During the Corresponding Night Among Older Women in an Exercise Program

J Aging Phys Act. 2019 Aug 1;27(4):482-488. doi: 10.1123/japa.2018-0194.

Abstract

This study investigated the acute effect of exercise on sleep outcomes among healthy older women by comparing days with structured exercise versus days without structured exercise during 4 months of exercise training. Participants (n = 51) in this study had wrist-worn actigraphic sleep data available following at least 3 days with structured exercise and 3 days without structured exercise at mid-intervention and at the end of intervention. The exercise intervention was treadmill walking. Multilevel models were used to examine whether structured exercise impacted sleep outcomes during the corresponding night. Overall, 1,362 nights of data were included in the analyses. In unadjusted and adjusted models, bedtimes were significantly earlier on evenings following an acute bout of structured exercise than on evenings without structured exercise. No other sleep parameters differed between exercise and nonexercise days. Understanding the effects of exercise on sleep in this understudied population may help to improve their overall sleep quality.

Keywords: aging; exercise training; sleep behaviors.

Publication types

  • Randomized Controlled Trial
  • Research Support, N.I.H., Extramural

MeSH terms

  • Actigraphy
  • Body Mass Index
  • Exercise / physiology*
  • Female
  • Humans
  • Middle Aged
  • Sleep* / physiology