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

Author

Listed:
  • Donvina Vaitkeviciute
  • Evelin Lätt
  • Jarek Mäestu
  • Toivo Jürimäe
  • Meeli Saar
  • Priit Purge
  • Katre Maasalu
  • Jaak Jürimäe

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

Suggested Citation

  • Donvina Vaitkeviciute & Evelin Lätt & Jarek Mäestu & Toivo Jürimäe & Meeli Saar & Priit Purge & Katre Maasalu & Jaak Jürimäe, 2014. "Physical Activity and Bone Mineral Accrual in Boys with Different Body Mass Parameters during Puberty: A Longitudinal Study," PLOS ONE, Public Library of Science, vol. 9(10), pages 1-8, October.
    • Handle: RePEc:plo:pone00:0107759
    DOI: 10.1371/journal.pone.0107759
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