Quantifying bone-relevant activity and its relation to bone strength in girls.

Medicine and Science in Sports and Exercise
Joshua N FarrScott B Going

Abstract

Physical activity (PA) is critical for maximizing bone development during growth. However, there is no consensus on how well existing PA measurement tools predict bone strength. The purposes of this study were to compare four methods of quantifying PA (pedometer, 3-d PA recall (3DPAR), bone-specific PA questionnaire (BPAQ), and past year PA questionnaire (PYPAQ)), in young girls and to evaluate their ability to predict indices of bone strength. A total of 329 girls aged 8-13 yr completed a pedometer assessment, the 3DPAR, the BPAQ, and a modified PYPAQ. Peripheral quantitative computed tomography was used to assess bone strength index (BSI) at metaphyseal (4% distal femur and tibia) sites and strength-strain index (SSI) at diaphyseal (femur = 20%, tibia = 66%) sites of the nondominant leg. Correlations and hierarchical multiple regression were used to assess relationships among PA measures and indices of bone strength. After adjusting for maturity, correlations between PA measures and indices of bone strength were positive, although low (r = 0.01-0.20). Regression models that included covariates (maturity, body mass, leg length, and ethnicity) and PA variables showed that PYPAQ score was significantly (P < 0.05) associated with...Continue Reading

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Citations

Aug 10, 2010·Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·J N FarrS B Going
Jan 6, 2012·Medicine and Science in Sports and Exercise·Joshua Nicholas FarrScott B Going
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May 31, 2017·Pediatric Exercise Science·Leigh GabelHeather A McKay
Mar 8, 2018·Archives of Osteoporosis·Sanna TolonenMika Kähönen
May 24, 2013·Medicine and Science in Sports and Exercise·Joshua N FarrScott B Going
Aug 5, 2017·Journal of Applied Biomechanics·Tina SmithJin Luo
Jun 3, 2021·The American Journal of Sports Medicine·Stacey A MeardonRichard W Willy

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