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@ARTICLE{Schmidt:180707,
      author       = {L. I. Schmidt and C.-P. Jansen and J. Depenbusch$^*$ and M.
                      Gabrian and M. Sieverding and H.-W. Wahl},
      title        = {{U}sing wearables to promote physical activity in old age.
                      {F}easibility, benefits, and user friendliness.},
      journal      = {Zeitschrift für Gerontologie und Geriatrie},
      volume       = {55},
      number       = {5},
      issn         = {0044-281X},
      address      = {Heidelberg},
      publisher    = {Springer Medizin},
      reportid     = {DKFZ-2022-01502},
      pages        = {388-393},
      year         = {2022},
      note         = {2022 Aug;55(5):388-393},
      abstract     = {Background: Wearables provide new opportunities to promote
                      physical activity also among older adults but data on
                      effectiveness and user friendliness are rare.Objective: The
                      effects of a comprehensive self-regulative intervention on
                      moderate to vigorous physical activity (MVPA) and number of
                      steps were examined using commercially available activity
                      trackers. Acceptance regarding the devices was analysed in
                      various domains.Methods: In this study 80 older adults (mean
                      = 67.03 years, standard deviation = 3.97 years; $59\%$
                      women) wore a Fitbit Charge HR for 21 days including a
                      baseline, a postintervention and a follow-up week. The
                      intervention comprised feedback, goal setting and planning
                      and $50\%$ of the participants were additionally randomized
                      to a role model component. Social cognitive predictors based
                      on the health action process approach (HAPA) and user
                      experience were assessed via questionnaires.Results: The
                      MVPA increased by an average of 19 min per week and steps by
                      1317 per day. An additional benefit of the role model
                      component could be observed for MVPA. In the follow-up, the
                      intervention effect was still significant for the number of
                      steps, while MVPA dropped back to baseline. Multilevel
                      models including HAPA variables explained small but
                      significant amounts of variance in MVPA $(8\%$
                      within-person, $26\%$ between-person) and steps $(11\%$
                      within-person, $12\%$ between-person). User experience was
                      rated as very high.Conclusion: Providing an intervention
                      based on established behavior change techniques and
                      self-monitoring via wearables seems to be effective for
                      increasing physical activity among older adults. The HAPA
                      variables seem to play a limited role to explain activity
                      levels. Acceptance of wearables can be expected to be high.},
      subtyp        = {Review Article},
      cin          = {C110},
      ddc          = {150},
      cid          = {I:(DE-He78)C110-20160331},
      pnm          = {313 - Krebsrisikofaktoren und Prävention (POF4-313)},
      pid          = {G:(DE-HGF)POF4-313},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:35849158},
      doi          = {10.1007/s00391-022-02083-x},
      url          = {https://inrepo02.dkfz.de/record/180707},
}