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@ARTICLE{Kreutz:143805,
      author       = {C. Kreutz$^*$ and M. E. Schmidt$^*$ and K. Steindorf$^*$},
      title        = {{E}ffects of physical and mind-body exercise on sleep
                      problems during and after breast cancer treatment: a
                      systematic review and meta-analysis.},
      journal      = {Breast cancer research and treatment},
      volume       = {176},
      number       = {1},
      issn         = {1573-7217},
      address      = {Dordrecht [u.a.]},
      publisher    = {Springer Science + Business Media B.V.},
      reportid     = {DKFZ-2019-01367},
      pages        = {1 - 15},
      year         = {2019},
      abstract     = {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.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.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.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.},
      subtyp        = {Review Article},
      cin          = {C110},
      ddc          = {610},
      cid          = {I:(DE-He78)C110-20160331},
      pnm          = {313 - Cancer risk factors and prevention (POF3-313)},
      pid          = {G:(DE-HGF)POF3-313},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30955185},
      doi          = {10.1007/s10549-019-05217-9},
      url          = {https://inrepo02.dkfz.de/record/143805},
}