The bidirectional associations between leisure time physical activity change and body mass index gain. The Tromsø Study 1974-2016.
Edvard H SagelvUlf EkelundLaila Arnesdatter HopstockMarius Steiro FimlandOla LøvslettenTom WilsgaardBente MorsethPublished in: International journal of obesity (2005) (2021)
We 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.