Physical activity and fat mass gain in Mexican school-age children: a cohort study Full Text
BMC Pediatrics, 08/20/2012
Jáuregui A et al. – These results support a protective role of MVPA on fat mass (FM) gain in girls, suggesting that it may play a crucial role in the development of obesity. Further research on the gender effect of MVPA is warranted to better understand its role in the prevention and control of overweight and obesity. Arrangements have already been made to complete the payment of the processing charges. You will receive it shortly.Methods
- The MVPA (5-d accelerometry), BMI, FM and FFM (air displacement plethysmography) were measured at baseline and endline.
- Associations between gains in BMI, FM and FFM and changes in MVPA were examined using lagged and dynamic regression models, controlling for energy intake and demographic variables.
- A total of 205 children were analyzed. Gender affected the effect of MVPA on FM gain.
- In girls, a high baseline MVPA predicted a lower FM gain (-0.96 kg, p=0.025) compared to low/medium MVPA.
- Increasing, decreasing or having a persistently high MVPA predicted a lower FM gain (range -1.6 to -1.03 kg, p<0.05) compared to persistently low MVPA.
- In boys, increases in MVPA were associated with higher gains in BMI (+0.76 kg/m2, p=0.04) and FFM (+1.1 kg, p=0.01) compared to persistently low MVPA.