Cited by 127Physical Activity and HealthContext-Aware Activity Recognition SystemsCardiovascular and exercise physiology

Replacing sedentary time with physical activity: a 15-year follow-up of mortality in a national cohort

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Dohrn, Ing-Mari, Kwak, Lydia, Oja, Pekka, Sjostrom, Michael, Hagstromer, Maria·2018·Clinical Epidemiology

Abstract

BACKGROUND: Sedentary behavior is associated with health risks in adults. The potential benefits of reducing sedentary time may be dependent not only on decrease per se, but also on the type of activity it replaces. Few longitudinal studies have investigated the effects on mortality when replacing objectively assessed sedentary time with another physical activity (PA) behavior. OBJECTIVE: To investigate the effects of replacing objectively assessed sedentary time with time in light-intensity PA or moderate-vigorous PA (MVPA) on all-cause mortality, cardiovascular disease (CVD) mortality or cancer mortality in a cohort with 15 years follow-up time. METHODS: In total, 851 women and men from the population-based Sweden Attitude Behaviour and Change study were included. Time spent sedentary, in light-intensity PA and in MVPA were assessed using an Actigraph 7164 accelerometer. Mortality data were obtained from Swedish registers. Cox proportional hazards models estimated hazard ratios (HR) of mortality with 95% confidence intervals (CI) and isotemporal substitution models were used to estimate the effect of replacing sedentary behavior with PA for the same amount of time. RESULTS: Over a follow-up of 14.2 years (SD 1.9) with 12,117 person-years at risk, 79 deaths occurred, 24 deaths from CVD, 27 from cancer, and 28 from other causes. Replacing 30 minutes/day of sedentary time with light-intensity PA was associated with significant reduction in all-cause mortality risk (HR: 0.89, 95% CI: 0.81-0.98) and CVD mortality risk (HR: 0.76, 95% CI: 0.63-0.92). Replacing 10 minutes of sedentary time with MVPA was associated with reduction in CVD mortality risk (HR: 0.62, 95% CI: 0.42-0.91). No statistically significant reductions were found for cancer mortality. CONCLUSION: This statistical modelling study suggests that replacing sedentary time with light-intensity PA could have beneficial effect on both all-cause mortality and CVD mortality. Replacing sedentary time with MVPA could reduce CVD mortality.

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  • Replacing sedentary behavior with 30 minutes of light physical activity and 20 minutes of moderate to vigorous physical activity could have beneficial effects on all-cause mortality.

    “For example, replacing sedentary behavior with 30 minutes of light physical activity and 20 minutes of moderate to vigorous physical activity could have beneficial effects on all cause mortality (85).”

    From Impact of Social Isolation Due to COVID-19 on Health in Older People: Mental and Physical Effects and Recommendations (2020) · cites this paper as [85]

    The Results section reports that replacing 30 minutes per day of sedentary time with light-intensity activity was associated with an 11% lower risk of all-cause mortality. It models 10- and 30-minute substitutions, not 20 minutes of moderate-to-vigorous activity, and finds no statistically significant reduction in all-cause mortality for that activity intensity. No page numbers are available in our copy. (LLM, conf=0.90)

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Research works printed but not linked: 1

  1. [28]Hagströmer M Kwak L Oja P Sjöström M A 6 year longitudinal study of accelerometer-measured physical activity and sedentary time in Swedish adults J Sci Med Sport 2015 18 5 553 557 25277849

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Authors
Dohrn, I.-M., Kwak, L., Oja, P., Sjostrom, M., & Hagstromer, M.
Affiliations
  • Karolinska Institutet (SE)
  • Urho Kaleva Kekkonen Institute (FI)
Corresponding author
Dohrn, Ing-Mari
Venue
Clinical Epidemiology
Published
2018-01
Volume
Volume 10
Pages
179-186
ISSN
1179-1349 (ISSN-L)
OpenAlex
W2785900515
Cited by
127
References
41
Citations by year
2026: 8 · 2025: 14 · 2024: 13 · 2023: 15 · 2022: 11 · 2021: 17 · 2020: 21 · 2019: 16 · 2018: 12
FWCI
11.35
Type
journal article
Language
en
Open access
Locations
  • Clinical Epidemiology (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Dove Medical Press (Taylor and Francis Group) (submittedVersion, cc-by-nc)
Funders
  • European Commission
  • Stockholms Läns Landsting
Topics
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Context-Aware Activity Recognition Systems
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
Keywords
sedentary behavior, physical activity, light physical activity, moderate-to-vigorous physical activity, all-cause mortality, cardiovascular mortality, cancer mortality, isotemporal substitution, accelerometer-measured activity, long-term follow-up

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