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Physical activity and fat mass gain in Mexican school-age children: a cohort study.

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اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • المصدر:
      Publisher: BioMed Central Country of Publication: England NLM ID: 100967804 Publication Model: Electronic Cited Medium: Internet ISSN: 1471-2431 (Electronic) Linking ISSN: 14712431 NLM ISO Abbreviation: BMC Pediatr Subsets: MEDLINE
    • بيانات النشر:
      Original Publication: London : BioMed Central, [2001-
    • الموضوع:
      Adiposity* ; Body Mass Index* ; Exercise* ; Weight Gain*; Obesity/*etiology; Child ; Child, Preschool ; Cohort Studies ; Female ; Humans ; Linear Models ; Longitudinal Studies ; Male ; Mexico ; Prospective Studies ; Sex Factors
    • نبذة مختصرة :
      Background: In México, the prevalence of unhealthy weight increased from 24% at 6 y to 33% at 12 y of age, opening a window of opportunity to better understand the pathogenesis of obesity. The objective of this study was to explore the association between time spent on medium, vigorous physical activity (MVPA) and concurrent gains in BMI, fat mass (FM) and fat-free mass (FFM), alternately, in a cohort of Mexican children followed from kindergarten (baseline) to 2nd grade elementary school (endline).
      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.
      Results: 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.
      Conclusion: These results support a protective role of MVPA on 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.
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    • الموضوع:
      Date Created: 20120731 Date Completed: 20121221 Latest Revision: 20211021
    • الموضوع:
      20240829
    • الرقم المعرف:
      PMC3441390
    • الرقم المعرف:
      10.1186/1471-2431-12-109
    • الرقم المعرف:
      22839498