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Association between physical activity and sleep in adults with chronic pain: A momentary, within-person perspective

journal contribution
posted on 10.08.2018, 00:00 by NE Andrews, J Strong, Pamela Meredith, RG D'Arrigo
Background Individuals with chronic pain consider improved sleep to be one of the most important outcomes of treatment. Physical activity has been shown to have beneficial effects on sleep in the general population. Despite these findings, the physical activity-sleep relationship has not been directly examined in a sample of people with chronic pain. Objective This study aimed to examine the association between objective daytime physical activity and subsequent objective sleep for individuals with chronic pain while controlling for pain and psychosocial variables. Design An observational, prospective, within-person study design was used. Methods A clinical sample of 50 adults with chronic pain was recruited. Participation involved completing a demographic questionnaire followed by 5 days of data collection. Over this period, participants wore a triaxial accelerometer to monitor their daytime activity and sleep. Participants also carried a handheld computer that administered a questionnaire measuring pain, mood, catastrophizing, and stress 6 times throughout the day. Results The results demonstrated that higher fluctuations in daytime activity significantly predicted shorter sleep duration. Furthermore, higher mean daytime activity levels and a greater number of pain sites contributed significantly to the prediction of longer periods of wakefulness at night. Limitations The small sample size used in this study limits the generalizability of the findings. Missing data may have led to overestimations or underestimations of effect sizes, and additional factors that may be associated with sleep (eg, medication usage, environmental factors) were not measured. Conclusions The results of this study suggest that engagement in high-intensity activity and high fluctuations in activity a re associated with poorer sleep at night; hence, activity modulation may be a key treatment strategy to address sleep complaints in individuals with chronic pain. © 2014 American Physical Therapy Association.

History

Volume

94

Issue

4

Start Page

499

End Page

510

Number of Pages

12

eISSN

1538-6724

ISSN

0031-9023

Publisher

Oxford University Press, USA

Peer Reviewed

Yes

Open Access

Yes

Acceptance Date

08/11/2013

External Author Affiliations

The Royal Brisbane and Women's Hospital; University of Queensland

Era Eligible

Yes

Journal

Physical Therapy

Exports

CQUniversity

Exports