22–23 Jul 2026
Heidelberg Congress Center
Europe/Berlin timezone

Dose-response association of accelerometry-measured physical activity and sedentary time with non-communicable diseases: a systematic review and meta-analysis

23 Jul 2026, 11:45
1h 15m
Heidelberg Congress Center ( Heidelberg Congress Center )

Heidelberg Congress Center

Heidelberg Congress Center

Czernyring 20 69115 Heidelberg Germany
1 - Scientific Poster Poster Session

Speaker

Dong Hoon Lee (Department of Sport Industry Studies, Yonsei University, Seoul, Republic of Korea)

Description

Background: Non-communicable diseases (NCDs) are leading causes of global mortality, with physical inactivity being a key modifiable risk factor. While previous studies relied on self-reported activity measures, meta-analyses incorporating objective accelerometer measurements remain limited. This study investigated dose-response associations between accelerometer-measured movement behaviors and NCD outcomes.
Methods: This systematic review and meta-analysis analyzed 28 prospective studies (17 unique cohorts) that used accelerometers to measure physical activity (PA) and sedentary behavior (SB). We examined associations with mortality (all-cause, cardiovascular disease (CVD), and cancer) and incident disease (CVD, cancer, and diabetes). Dose-response relationships were assessed using restricted cubic splines.
Results: For SB, risks substantially increased beyond 7-8 hours/day, with each additional hour associated with increased mortality risks (all-cause: HR: 1.04, 95% CI: 1.02-1.06, CVD: HR: 1.09, 95% CI: 0.95-1.25). Light physical activity (LPA) demonstrated inverse association, with each additional hour reducing all-cause mortality (HR: 0.93, 95% CI: 0.89-0.97) and cancer mortality (HR: 0.86, 95% CI: 0.77-0.95). For CVD mortality, LPA showed optimal benefits at 2.2 hours/day (40% risk reduction). Moderate-to-vigorous physical activity (MVPA) showed the strongest protective associations for mortality and demonstrated early benefits for disease incidence, with significant risk reductions within the first hour/day for CVD and first 20 minutes/day for diabetes.
Conclusions: SB exceeding 7-8 hours/day increased mortality and disease risks, while even modest increases in LPA or MVPA conferred meaningful health benefits. These findings support public health recommendations emphasizing reduced SB and increased PA across all intensity levels.

Keywords

Non-communicable disease; Accelerometer; Physical activity; Sedentary time

Abstract submitters declaration yes
Conflict of Interest & Ethical Approval yes

Authors

Ms Seo Yeong An (Department of Sport Industry Studies, Yonsei University, Seoul, Republic of Korea) Ms Yumi Park (Department of Sport Industry Studies, Yonsei University, Seoul, Republic of Korea) Mr Yun Sung Kim (Department of Sport Industry Studies, Yonsei University, Seoul, Republic of Korea) Mr Young-Heon Shin (Department of Sport Industry Studies, Yonsei University, Seoul, Republic of Korea) Dr Yuan Yuan (Department of Sport Industry Studies, Yonsei University, Seoul, Republic of Korea) Ms Hyu Jung Choe (Department of Sport Industry Studies, Yonsei University, Seoul, Republic of Korea) Mr Da Min Jung (Department of Sport Industry Studies, Yonsei University, Seoul, Republic of Korea) Prof. Justin Y. Jeon (Department of Sport Industry Studies, Yonsei University, Seoul, Republic of Korea) Prof. Hannah Oh (Interdisciplinary Program in Precision Public Health, Department of Public Health Sciences, Graduate School of Korea University, Seoul, Republic of Korea) Prof. Leandro F. M. Rezende (Department of Preventive Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, Sao Paulo, Brazil) Prof. Edward L. Giovannucci (Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA) Dong Hoon Lee (Department of Sport Industry Studies, Yonsei University, Seoul, Republic of Korea)

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