The relationship between physical activity and bone during adolescence differs according to sex and biological maturity
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| Title | The relationship between physical activity and bone during adolescence differs according to sex and biological maturity |
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| Author | Weeks, Benjamin Kurt; Beck, Belinda Ruth |
| Journal Name | Journal of Osteoporosis |
| Year Published | 2010 |
| Place of publication | United States |
| Publisher | Sage - Hindawi Access to Research |
| Abstract | This study examines the relationships between bone mass, physical activity, and maturational status in healthy adolescent boys and girls. Methods. Ninety-nine early high-school (Year 9) students were recruited. Physical activity and other lifestyle habits were recorded via questionnaire. Anthropometrics, muscle power, calcaneal broadband ultrasound attenuation (BUA), bone mineral content (BMC), and lean tissue mass were measured. Maturity was determined by Tanner stage and estimated age of peak height velocity (APHV). Results. Boys had greater APHV, weight, height, muscle power, and dietary calcium than girls (P < .05). Boys exhibited greater femoral neck BMC and trochanteric BMC while girls had higher BUA and spine BMAD (P < .05). Physical activity and vertical jump predicted BMADand BUAmost strongly for boys whereas years from APHV were the strongest predictor for girls. Conclusion. Sex-specific relationships exist between physical activity, maturity and bone mass during adolescence. |
| Peer Reviewed | Yes |
| Published | Yes |
| Alternative URI | http://dx.doi.org/10.4061/2010/546593 |
| Copyright Statement | Copyright remains with the authors 2010]. The attached file is posted here with permission of the copyright owners for your personal use only. No further distribution permitted.For information about this journal please refer to the journal's website. The online version of this work is licensed under a Creative Commons License, available at http://creativecommons.org/licenses/by-nc-sa/2.1/au/ |
| Volume | 2010 |
| Page from | 1 |
| Page to | 9 |
| ISSN | 2042-0064 |
| Date Accessioned | 2010-11-02 |
| Date Available | 2010-12-07T07:32:34Z |
| Language | en_AU |
| Research Centre | Griffith Health Institute; Centre for Musculoskeletal Research |
| Faculty | Griffith Health Faculty |
| Subject | Exercise Physiology; Human Movement and Sports Science |
| URI | http://hdl.handle.net/10072/35267 |
| Publication Type | Journal Articles (Refereed Article) |
| Publication Type Code | c1 |
Please use this identifier to cite this record: http://hdl.handle.net/10072/35267
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