Journal article
Physical activity augments bone mineral accrual in young children: The Iowa Bone Development study
The Journal of pediatrics, Vol.148(6), pp.793-799
06/2006
DOI: 10.1016/j.jpeds.2006.01.045
PMID: 16769389
Abstract
This 3-year follow-up study examined associations between physical activity and bone mineral content (BMC) and whether physical activity augments BMC accrual. Participants were 370 children (mean age baseline 5.3 years, follow-up 8.6 years). Physical activity was measured using 4-day accelerometry. BMC was measured using dual energy x-ray absorptiometry. After adjustment for baseline BMC, age, and body size, mean physical activity predicted follow-up BMC at the hip, trochanter, spine, and whole body in boys and at the trochanter and whole body in girls. The variability in BMC explained by physical activity was modest (1% to 2%). However, based on a general linear model with adjustment for baseline BMC and body size, children who maintained high levels of physical activity accrued, on average, 14% more trochanteric BMC and 5% more whole-body BMC relative to peers maintaining low levels of physical activity. This study suggests that maintaining high levels of everyday physical activity contributes to increases in BMC in young children, particularly at the trochanter.
Details
- Title: Subtitle
- Physical activity augments bone mineral accrual in young children: The Iowa Bone Development study
- Creators
- Kathleen F Janz - Department of Health and Sport Studies, The University of Iowa, Iowa City, Iowa 52242, USA. kathleen-janz@uiowa.eduJulie M GilmoreTrudy L BurnsSteven M LevyJames C TornerMarcia C WillingTeresa A Marshall
- Resource Type
- Journal article
- Publication Details
- The Journal of pediatrics, Vol.148(6), pp.793-799
- DOI
- 10.1016/j.jpeds.2006.01.045
- PMID
- 16769389
- NLM abbreviation
- J Pediatr
- ISSN
- 0022-3476
- eISSN
- 1097-6833
- Publisher
- United States
- Grant note
- M01-RR00059 / NCRR NIH HHS R01-DE12101 / NIDCR NIH HHS R01-DE09551 / NIDCR NIH HHS
- Language
- English
- Date published
- 06/2006
- Academic Unit
- Preventive and Community Dentistry; Epidemiology; Surgery; Injury Prevention Research Center; Neurosurgery; Health, Sport, and Human Physiology
- Record Identifier
- 9983917774402771
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