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Changes in physical activity and sedentary behavior associated with an exercise intervention in depressed adults
Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Björn Ekblom's research group.ORCID iD: 0000-0002-7879-9188
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2017 (English)In: Psychology of Sport And Exercise, ISSN 1469-0292, E-ISSN 1878-5476, Vol. 30, 10-18 p.Article in journal (Refereed) Published
Abstract [en]

Background Exercise is beneficial for depression, but less is known about its impact on post-intervention physical activity and sedentary behavior. The aim of this paper was to determine the extent to which participation in light-, moderate- and vigorous-intensity exercise intervention influenced habitual physical activity and sedentary behavior patterns in depressed adults. Methods Accelerometer data was collected pre- and post-intervention from depressed participants randomized to one of three 12-week intervention groups: light (n = 21), moderate (n = 25) and vigorous (n = 22) exercise. Mixed models examined changes in time spent sedentary and in light and moderate-to-vigorous physical activity (MVPA); time accumulated in sedentary and MVPA bouts; and, number of MVPA bouts and interruptions in sedentary time. Results Overall sedentary time decreased while light activity time increased across all intervention groups but not significantly so. The light exercise intervention group reduced MVPA minutes (−8.22, 95% CI: −16.44, −0.01), time in MVPA bouts (−8.44, 95% CI: −14.27, −2.62), and number of activity bouts (−0.43, 95% CI: −0.77, −0.09). The moderate exercise intervention group reduced time in MVPA bouts (−6.27, 95% CI: −11.71, −0.82) and number of sedentary interruptions (−6.07, 95% CI: −9.30, −2.84). No changes were observed for the vigorous exercise intervention group. Conclusions The exercise intervention led to an increase in overall light physical activity and decrease in sedentary time, though neither change was statistically significant. Participation in the light and moderate exercise intervention groups was associated with reductions of time in MVPA bouts, but this was not evident for the vigorous exercise intervention group.

Place, publisher, year, edition, pages
2017. Vol. 30, 10-18 p.
Keyword [en]
Habitual physical activity, Exercise, Depression, Sedentary behavior, Intervention studies
National Category
Psychiatry Public Health, Global Health, Social Medicine and Epidemiology
Research subject
URN: urn:nbn:se:gih:diva-4775DOI: 10.1016/j.psychsport.2017.01.006ISI: 000400038900002OAI: diva2:1075280
Available from: 2017-02-17 Created: 2017-02-17 Last updated: 2017-06-07

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Ekblom, Örjan
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Psychology of Sport And Exercise
PsychiatryPublic Health, Global Health, Social Medicine and Epidemiology

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