Trine Moholdt1, Ulrik Wisløff2, Stian Lydersen3, Javaid Nauman2. 1. Department of Circulation and Medical Imaging, Faculty of Medicine, KG Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology, Trondheim, Norway Department of Obstetrics and Gynecology, St. Olav's Hospital, Trondheim, Norway. 2. Department of Circulation and Medical Imaging, Faculty of Medicine, KG Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology, Trondheim, Norway. 3. Faculty of Medicine, Regional Centre for Child and Youth Mental Health and Child Welfare, Norwegian University of Science and Technology, Trondheim, Norway.
Abstract
BACKGROUND: To promote and maintain health, all adults are recommended to do moderate-intensity aerobic activity a minimum of 30 min on 5 days, or vigorous-intensity activity of 20 min on 3 days, each week. Whether these levels prevent long-term weight gain is uncertain. OBJECTIVE: To assess the relationship between physical activity and long-term weight gain. STUDY DESIGN: An observational prospective cohort study. METHODS: Weight and physical activity were measured in the Nord-Trøndelag Health Study in 1984-1986, 1995-1997 and 2006-2008. Participants (n=19 127) were classified based on physical activity into inactive, below recommended level, recommended level or above recommended level. We carried out adjusted mixed model regression analyses with weight as outcome. RESULTS: Men maintaining physical activity above the recommendations for 33 years increased 5.6 kg, while inactive men increased 9.1 kg. For women, corresponding numbers were 3.8 kg in those above recommended physical activity levels, and 9.5 kg in inactive. In adjusted analyses, physical activity above the recommendations was associated with 2.1 kg (95% CI 1.8 to 2.4) less weight gain in men over any 11-year period, compared with inactive. Women exceeding the recommendations gained 1.8 kg (CI 1.5 to 2.2) less than inactive. Compared with inactive, the ORs of gaining meaningful weight of ≥2.3 kg were 0.79 (CI 0.69 to 0.91) and 0.70 (CI 0.60 to 0.81) if exceeding the recommendations in men and women, respectively. CONCLUSIONS: Physical activity above the current recommendations for health benefits was associated with significantly lower risk of weight gain. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.
BACKGROUND: To promote and maintain health, all adults are recommended to do moderate-intensity aerobic activity a minimum of 30 min on 5 days, or vigorous-intensity activity of 20 min on 3 days, each week. Whether these levels prevent long-term weight gain is uncertain. OBJECTIVE: To assess the relationship between physical activity and long-term weight gain. STUDY DESIGN: An observational prospective cohort study. METHODS: Weight and physical activity were measured in the Nord-Trøndelag Health Study in 1984-1986, 1995-1997 and 2006-2008. Participants (n=19 127) were classified based on physical activity into inactive, below recommended level, recommended level or above recommended level. We carried out adjusted mixed model regression analyses with weight as outcome. RESULTS:Men maintaining physical activity above the recommendations for 33 years increased 5.6 kg, while inactive men increased 9.1 kg. For women, corresponding numbers were 3.8 kg in those above recommended physical activity levels, and 9.5 kg in inactive. In adjusted analyses, physical activity above the recommendations was associated with 2.1 kg (95% CI 1.8 to 2.4) less weight gain in men over any 11-year period, compared with inactive. Women exceeding the recommendations gained 1.8 kg (CI 1.5 to 2.2) less than inactive. Compared with inactive, the ORs of gaining meaningful weight of ≥2.3 kg were 0.79 (CI 0.69 to 0.91) and 0.70 (CI 0.60 to 0.81) if exceeding the recommendations in men and women, respectively. CONCLUSIONS: Physical activity above the current recommendations for health benefits was associated with significantly lower risk of weight gain. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.
Entities:
Keywords:
Epidemiology; Exercise; Exercise and/or Caloric Restriction Effects on Body Weight/Composition; Health Promotion Through Physical Activity; Physical Activity Promotion in Primary Care
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