title: Worksite intervention effects on sleep quality: a randomized controlled trial.
abstract: Employees with sleep disturbance are at increased risk of disease. Exercise is believed to be effective for improving sleep quality, but few studies have been conducted. This study investigated the effects of a 24-week worksite exercise/behavioral intervention on self-rated sleep quality, via the Pittsburgh Sleep Quality Index (PSQI), in 73 employees. Greater post-test improvements in the PSQI (-2.0 +/- 2.6 vs. -1.3 +/- 2.7 points, p = .006, and -16 +/- 61 vs. -1 +/- 76%, p = .02) were found in treatment versus controls, and in women versus men (by -2.7 points [-5.0 to -0.3 points, p = .03], and by -72% [-142 to -2%, p = .04]). Similar results were found in the shift worker subgroup. Changes in sleep scores were not significantly related to baseline characteristics, changes in psychological health or quality-of-life scores, or level of exercise compliance.
authors.affiliation: School of Exercise and Sport Science, Faculty of Health Sciences, University of Sydney.
authors.forename: Evan
authors.initials: E
authors.lastname: Atlantis
authors.affiliation: School of Exercise and Sport Science, Faculty of Health Sciences, University of Sydney.
authors.forename: Chin-Moi
authors.initials: CM
authors.lastname: Chow
authors.affiliation: National Health & Medical Research Counsel: Clinical Trials Centre, University of Sydney.
authors.forename: Adrienne
authors.initials: A
authors.lastname: Kirby
authors.affiliation: Faculty of Medicine and Faculty of Health Sciences, School of Exercise and Sport Science, University of Sydney.
authors.forename: Maria A Fiatarone
authors.initials: MAF
authors.lastname: Singh
mesh_terms: D000328:Adult; D001521:Behavior Therapy; D004812:Epidemiologic Methods; D015444:Exercise; D005081:Exercise Therapy; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D016272:Occupational Health; D010349:Patient Compliance; D011788:Quality of Life; D012890:Sleep; D012893:Sleep Wake Disorders / Q000517:prevention & control* / Q000628:therapy