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Increased physical activity improves sleep and mood outcomes in inactive people with insomnia: a randomized controlled trial

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journal contribution
posted on 27.11.2015, 15:36 authored by Iuliana HartescuIuliana Hartescu, Kevin Morgan, Clare StevinsonClare Stevinson
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.

History

School

  • Sport, Exercise and Health Sciences

Published in

Journal of Sleep Research

Volume

24

Issue

5

Pages

526 - 534 (9)

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.

Publisher

Wiley © European Sleep Research Society

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

06/03/2015

Publication date

2015-04-21

Copyright date

2015

Notes

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.

ISSN

0962-1105

eISSN

1365-2869

Language

en