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Erschienen in: Breast Cancer Research and Treatment 1/2019

06.04.2019 | Review

Effects of physical and mind–body exercise on sleep problems during and after breast cancer treatment: a systematic review and meta-analysis

verfasst von: Charlotte Kreutz, Martina E. Schmidt, Karen Steindorf

Erschienen in: Breast Cancer Research and Treatment | Ausgabe 1/2019

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Abstract

Purpose

We conducted a meta-analysis evaluating the effects of different exercise interventions on self-reported and objective sleep measurements during or after breast cancer treatment.

Methods

Three databases were systematically searched for randomized controlled trials with any type of exercise intervention in women with breast cancer. Outcomes were self-reported or objective sleep measurements. Standardized mean differences (SMDs) were calculated using random-effects models.

Results

The meta-analysis included 22 trials with 2107 participants. Of these, 17 studies used the Pittsburgh Sleep Quality Index (PSQI), six studies included objective sleep assessments (ActiGraph). Physical exercise interventions included walking, aerobic exercise, resistance exercise or a combination of both. Mind–body exercise interventions included yoga, Tai Chi and Qigong. Most interventions were supervised. Both, physical (SMD − 0.32; 95% CI − 0.54 to − 0.10) and mind–body exercise interventions (SMD − 0.27; 95% CI − 0.44 to − 0.09), resulted in improvements of total sleep scores. Subgroup analyses revealed no clear differences between interventions conducted during versus after breast cancer treatment. Considering the PSQI subscales, exercise resulted in improvements of sleep quality (SMD − 0.28; 95% CI − 0.44 to − 0.11) and sleep disturbances (SMD − 0.26; 95% CI − 0.45 to − 0.06). Regarding the objective measurements, no significant effects were found.

Conclusions

Physical as well as mind–body exercise can improve subjective sleep problems in breast cancer patients. In contrast, there was no effect of exercise on objective sleep measures. Future studies should clarify which type of intervention might be most effective depending on individual patients’ and treatments’ characteristics.
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Metadaten
Titel
Effects of physical and mind–body exercise on sleep problems during and after breast cancer treatment: a systematic review and meta-analysis
verfasst von
Charlotte Kreutz
Martina E. Schmidt
Karen Steindorf
Publikationsdatum
06.04.2019
Verlag
Springer US
Erschienen in
Breast Cancer Research and Treatment / Ausgabe 1/2019
Print ISSN: 0167-6806
Elektronische ISSN: 1573-7217
DOI
https://doi.org/10.1007/s10549-019-05217-9

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