Are all MVPA minutes equal? Associations between MVPA characteristics, independent of duration, and childhood adiposity

BMC Public Health

Carol Maher¹  François Fraysse¹  Dot Dumuid¹  Tim Olds¹  Aaron Miatke² 

[1] Alliance for Research in Exercise, Nutrition & Activity (ARENA), Allied Health and Human Performance, University of South Australia, Adelaide, Australia;Alliance for Research in Exercise, Nutrition & Activity (ARENA), Allied Health and Human Performance, University of South Australia, Adelaide, Australia;Present address: Centre for Adolescent Health, Level 5, Murdoch Children’s Research Centre, Royal Children’s Hospital, 50 Flemington Road, 3052, Parkville, Australia;

关键词: MVPA;    Obesity;    Overweight;    Accelerometry;    Lifestyle;   

DOI  :  10.1186/s12889-021-11420-5

来源: Springer

【 摘 要 】

BackgroundThe inverse relationship between moderate-to-vigorous physical activity (MVPA) duration and childhood adiposity is well established. Less is known about how characteristics of MVPA accumulation may be associated with adiposity, independent of MVPA duration. This study aimed to investigate how the MVPA characteristics of children, other than duration (bout length, time of day, day-to-day consistency, intensity), were associated with adiposity.MethodsCross-sectional study of the Australian arm of the International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) (participants: n = 424, age range 9–11, 44% male). Adiposity was determined by percent body fat via bioelectrical impedance. MVPA duration and characteristics (bout length, time of day, consistency, intensity) were derived from 7-day, 24-h accelerometry. Generalised estimating equations were used to examine the individual and multivariate associations between MVPA characteristics and adiposity.ResultsUnivariate analyses showed that higher MVPA duration (β range = − 0.26,-0.15), longer bouts of MVPA (β range = 0.15,0.22) and higher MVPA intensity (β range = − 0.20,-0.13) were all inversely associated with adiposity (all p < 0.05). When models were adjusted for MVPA duration, only MVPA intensity (β range = − 0.16,-0.04) showed consistent significant associations with adiposity.ConclusionsCharacteristics of MVPA other than duration and intensity appear to be unrelated to adiposity.

【 授权许可】

CC BY