Physical Activity and Bone Mineral Accrual in Boys with Different Body Mass Parameters during Puberty: A Longitudinal Study

Abstract

The aim of our longitudinal study was to investigate the relationships between physical activity and bone mass in boys with different body mass status during the years surrounding pubertal growth spurt. Two hundred and six boys entering puberty took part in this study. The subjects were divided into underweight (), normal weight (), overweight () and obese () groups at baseline according to age related categories. Whole-body DXA scans were performed at baseline, after 12 and 24 months to assess body composition (lean body mass, fat mass), and total body (TB), lumbar spine (LS) and femoral neck (FN) bone mineral density (BMD) parameters. Physical activity was measured by 7- day accelerometry. For longitudinal analysis, multilevel fixed effects regression models were constructed. Biological age, height and lean body mass had an effect for explanation of TB BMD, FN BMD and LS BMD. Moderate to vigorous physical activity (MVPA), vigorous physical activity (VPA) and sedentary time (SED) had the significant effect only on FN BMD. Being an underweight boy at the baseline indicated greater chance (p<0.01) to have lower TB BMD in the future (2 years at follow up) development, compared to normal weight (estimates = −0.038), overweight (estimates = −0.061) and obese boys (estimates = −0.106).

Relationship between physical activity, dietary intake and bone parameters in 10-12 years old Hungarian boys and girls

“…However, MVPA did not correlate significantly with QUS in our sample. Previous studies support our results that VPA (with gender differencies) seems to be more strongly related to bone parameters than other intensity levels of PA (5,19,20). We also found gender differences (21,22): there was a significant correlation between the amount of VPA and ultrasound bone characteristics in boys, but not in girls.…”

DNA methylation and the social gradient of osteoporotic fracture: A conceptual model

“…Parental understanding of preventive health behaviours is linked to health literacy [74], which itself has an inverse association with SEP [75]. Furthermore, the lifestyle-related factors that contribute to the accrual of peak bone mass, including dietary calcium [76] and physical activity [77,78] are influenced by social determinants; SEP is consistently observed to have an inverse association with a multitude of less healthy lifestyle behaviours that tend to coaggregate [79,80]. In addition to an increased disposition to osteoporotic fracture associated with lifestyle behaviours, data have shown associations between smaller birth weight and lower adult bone mass [81].…”

Can the sedentary behavior of young male basketball and volleyball players impact the bone mass and bone geometry?

“…Besides, the evolution of technology has, unfortunately, induced a growing tendency of sedentary behavior amongst young people. Longitudinal studies show that lack of physical activity in school children is negatively associated with lower extremity bone development [19,20] and that elite athletes have little concern in meeting recommended physical activity guidelines. However, sedentary behavior is considered a health risk independent of physical activity and is only recognized in public health guidelines that warn against prolonged sedentary time.…”