ArticleInternational journal of obesity (2005)2021
The bidirectional associations between leisure time physical activity change and body mass index gain. The Tromsø Study 1974-2016.
Article in International journal of obesity (2005), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed.
- Leisure-Time Physical Activity on Age-Modelled Trajectories of Body Mass Index and Obesity Risk Throughout Life: Multivariable Regression and Mendelian Randomization Analyses Using Electronic Health Record Data From the CORDELIA-Catalunya Study.Diabetes, obesity & metabolism · 2026Article
- Identification of potential mediators of the relationship between body mass index and colorectal cancer: a Mendelian randomization analysis.International journal of epidemiology · 2024Article
- Women carry the weight of deprivation on physical inactivity: Moderated mediation analyses in a European sample of adults over 50 Years of age.SSM - population health · 2022Article
- Physical Activity and Subsequent Change in Body Weight, Composition and Shape: Effect Modification by Familial Overweight.Frontiers in endocrinology · 2022Article
- Incidence of dementia over a period of 20 years in a Norwegian population.Alzheimer's & dementia (Amsterdam, Netherlands)Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo examine whether leisure time physical activity changes predict subsequent body mass index (BMI) changes, and conversely, whether BMI changes predict subsequent leisure time physical activity changes.
methodsThis prospective cohort study included adults attending ≥3 consecutive Tromsø Study surveys (time: T1, T2, T3) during 1974-2016 (n = 10779). If participants attended >3 surveys, we used the three most recent surveys. We computed physical activity change (assessed by the Saltin-Grimby Physical Activity Level Scale) from T1 to T2, categorized as Persistently Inactive (n = 992), Persistently Active (n = 7314), Active to Inactive (n = 1167) and Inactive to Active (n = 1306). We computed BMI change from T2 to T3, which regressed on preceding physical activity changes using analyses of covariance. The reverse association (BMI change from T1 to T2 and physical activity change from T2 to T3; n = 4385) was assessed using multinomial regression.
resultsAverage BMI increase was 0.86 kg/m
conclusionsWe found no association between leisure time physical activity changes and subsequent BMI changes, whereas BMI change predicted subsequent physical activity change. These findings indicate that BMI change predicts subsequent physical activity change at population level and not vice versa.
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Registered trials
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