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Title: Increased physical activity improves sleep and mood outcomes in inactive people with insomnia: a randomized controlled trial
Authors: Hartescu, Iuliana
Morgan, Kevin
Stevinson, Clare
Keywords: Physical exercise
RCT
Chronic insomnia
Walking
Issue Date: 2015
Publisher: Wiley © European Sleep Research Society
Citation: HARTESCU, I., MORGAN, K. and STEVINSON, C., 2015. Increased physical activity improves sleep and mood outcomes in inactive people with insomnia: a randomized controlled trial. Journal of Sleep Research, 24 (5), pp. 526 - 534.
Abstract: While high levels of activity and exercise training have been associated with improvements in sleep quality, minimum levels of activity likely to improve sleep outcomes have not been explored. A two-armed parallel randomized controlled trial (N=41; 30 females) was designed to assess whether increasing physical activity to the level recommended in public health guidelines can improve sleep quality among inactive adults meeting research diagnostic criteria for insomnia. The intervention consisted of a monitored program of ≥150 min of moderate- to vigorous-intensity physical activity per week, for 6 months. The principal end-point was the Insomnia Severity Index at 6 months post-baseline. Secondary outcomes included measures of mood, fatigue and daytime sleepiness. Activity and light exposure were monitored throughout the trial using accelerometry and actigraphy. At 6 months post-baseline, the physical activity group showed significantly reduced insomnia symptom severity (F8,26 = 5.16, P = 0.03), with an average reduction of four points on the Insomnia Severity Index; and significantly reduced depression and anxiety scores (F6,28 = 5.61, P = 0.02; and F6,28 = 4.41, P = 0.05, respectively). All of the changes were independent of daily light exposure. Daytime fatigue showed no significant effect of the intervention (F8,26 = 1.84, P = 0.18). Adherence and retention were high. Internationally recommended minimum levels of physical activity improve daytime and night-time symptoms of chronic insomnia independent of daily light exposure levels.
Description: This is the peer reviewed version of the following article: Hartescu, I., Morgan, K. and Stevinson, C. D. (2015), Increased physical activity improves sleep and mood outcomes in inactive people with insomnia: a randomized controlled trial. Journal of Sleep Research, 24: 526–534, which has been published in final form at doi: 10.1111/jsr.12297. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Version: Accepted for publication
DOI: 10.1111/jsr.12297
URI: https://dspace.lboro.ac.uk/2134/19679
Publisher Link: http://dx.doi.org/10.1111/jsr.12297
ISSN: 0962-1105
Appears in Collections:Published Articles (Sport, Exercise and Health Sciences)

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