Abstract
Objectives: To evaluate the effects of exercise interventions on sleep disturbances and sleep quality in patients with mixed cancer diagnoses, and identify demographic, clinical, and intervention-related moderators of these effects. Methods: Individual patient data (IPD) and aggregated meta-analyses of randomized controlled trials (RCTs). Using data from the Predicting OptimaL cAncer RehabIlitation and Supportive care project, IPD of 2173 adults (mean age = 54.8) with cancer from 17 RCTs were analyzed. A complementary systematic search was conducted (until November 2018) to study the overall effects and test the representativeness of analyzed IPD. Effect sizes of exercise effects on self-reported sleep outcomes were calculated for all included RCTs. Linear mixed-effect models were used to evaluate the effects of exercise on post-intervention outcome values, adjusting for baseline values. Moderator effects were studied by testing interactions for demographic, clinical and intervention-related characteristics. Results: For all 27 eligible RCTs from the updated search, exercise interventions significantly decreased sleep disturbances in adults with cancer (g = −0.09, 95% CI [−0.16; −0.02]). No significant effect was obtained for sleep quality. RCTs included in IPD analyses constituted a representative sample of the published literature. The intervention effects on sleep disturbances were not significantly moderated by any demographic, clinical, or intervention-related factor, nor by sleep disturbances. Conclusions: This meta-analysis provides some evidence that, compared to control conditions, exercise interventions may improve sleep disturbances, but not sleep quality, in cancer patients, although this effect is of a small magnitude. Among the investigated variables, none was found to significantly moderate the effect of exercise interventions on sleep disturbances.
Original language | English |
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Article number | 109746 |
Pages (from-to) | 1-9 |
Number of pages | 9 |
Journal | Journal of Psychosomatic Research |
Volume | 124 |
Early online date | 23 Jun 2019 |
DOIs | |
Publication status | Published - Sept 2019 |
Funding
The POLARIS study was supported by the “ Bas Mulder Award ” granted to L.M. Buffart by the Alpe d'HuZes foundation , part of the Dutch Cancer Society ( VU 2011-5045 ). PB is supported by Université du Québec à Montréal , Institut Universitaire de Santé Mentale de Montréal and by a salary award from the Fonds de recherche du Québec – Santé. The views expressed are those of the authors and do not necessarily represent those of the (U.S.) National Cancer Institute. Dr. Steindorf reports personal fees from Lilly Deutschland (Award), outside the submitted work; Dr. Bohus reports grants from Josse Carreras Foundation , during the conduct of the study; Dr. van Mechelen reports to be shareholder-director of VU University Medical Center Amsterdam spin-off company Evalua Neder-land B.V. ( www.evalua.nl ) and non-executive board member of Arbo Unie B.V. ( www.arbounie.nl ). Both companies are active in the Dutch occupational health care sector. Dr. Nollet reports grants from Dutch Cancer Society , during the conduct of the study. Dr. Brug reports grants from Dutch Cancer Society , during the conduct of the study. PB is supported by Universit? du Qu?bec ? Montr?al, Institut Universitaire de Sant? Mentale de Montr?al and by a salary award from the Fonds de recherche du Qu?bec ? Sant?. The views expressed are those of the authors and do not necessarily represent those of the (U.S.) National Cancer Institute. Dr. Steindorf reports personal fees from Lilly Deutschland (Award), outside the submitted work; Dr. Bohus reports grants from Josse Carreras Foundation, during the conduct of the study; Dr. van Mechelen reports to be shareholder-director of VU University Medical Center Amsterdam spin-off company Evalua Neder-land B.V. (www.evalua.nl) and non-executive board member of Arbo Unie B.V. (www.arbounie.nl). Both companies are active in the Dutch occupational health care sector. Dr. Nollet reports grants from Dutch Cancer Society, during the conduct of the study. Dr. Brug reports grants from Dutch Cancer Society, during the conduct of the study.The POLARIS study was supported by the ?Bas Mulder Award? granted to L.M. Buffart by the Alpe d'HuZes foundation, part of the Dutch Cancer Society (VU 2011-5045).
Funders | Funder number |
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Alpe d'HuZes foundation | VU 2011-5045 |
Dutch Cancer Society | |
Fonds de recherche du Qu?bec ? | |
Institut Universitaire de Sant? | |
Institut Universitaire de Santé Mentale de Montréal | |
Josse Carreras Foundation | |
National Cancer Institute | |
Lilly Deutschland | |
Université du Québec à Montréal | |
Fonds de Recherche du Québec - Santé |
Keywords
- Cancer
- Physical activity
- Treatment, sleep