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Classes of developmental trajectories of body mass index: differences in motor competence and physical fitness
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Advisor(s)
Abstract(s)
To identify classes of different developmental trajectories of body
massindex (BMI) andtestingit for differencesinmotor competence (MC) and
physical fitness (PF). Methods: This is a mixed longitudinal study lasting five
years. Participants were N=147 of both sexes (69 girls) divided in 8 cohorts, at
baseline the youngest and the oldest cohorts had 4 and 11 years of age
respectively. Height and weight were assessed and BMI was calculated
[weight (kg)/height (m2)]. MC was assessed with KTK, TGMD-2 and PF
was evaluated with one-mile run/walk. Developmental trajectories of BMI
were identified using latent class mixed modeling. Post-hoc analyses were
calculated using linear models. Results: Modeling revealed four based on the
information criteria minimum. However, two classes show very low numbers
(n < 6). Therefore,twomeaningful classes wereidentified based on modelling
and content related considerations. Class 1 (36%) show larger initial BMI and
a larger slope compared to class 2 (64%). No differences were identified in
locomotion and object control. ForClass 2increases faster comparedto class 1
(p < .05) and class 2 shows better physical fitness (p < .05). Conclusion: This
study identified two meaningful trajectories for children based on their BMI
development across five time points. In line with previous research, children
with slower increasing BMI showed better physical performances and
performance improvements. This shows the importance and interplay between
multiple indicators of physical health.
Description
Keywords
Body mass index
Pedagogical Context
Citation
Vitor Lopes; Till Utesch; Rodrigues, Luís Paulo (2018). Classes of developmental trajectories of body mass index: differences in motor competence and physical fitness. In Journal of Sport & Exercise Psychology. Denver
Publisher
Human Kinetics