Growing bones: how important is exercise?

Petit, Moira A., Macdonald, Heather M. and McKay, Heather A. (2006) Growing bones: how important is exercise?. Current Opinion in Orthopaedics, 17 5: 431-437. doi:10.1097/01.bco.0000244035.86799.5b

Author Petit, Moira A.
Macdonald, Heather M.
McKay, Heather A.
Title Growing bones: how important is exercise?
Journal name Current Opinion in Orthopaedics   Check publisher's open access policy
ISSN 1041-9918
Publication date 2006-10-01
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1097/01.bco.0000244035.86799.5b
Open Access Status
Volume 17
Issue 5
Start page 431
End page 437
Total pages 7
Place of publication Philadelphia, PA, United States
Publisher Lippincott Williams & Wilkins
Language eng
Subject 111712 Health Promotion
110314 Orthopaedics
Abstract Purpose of review: The aim of this review is to summarize what is known about the relationship between childhood physical activity and bone mineral mass, bone geometry and bone strength. Recent findings: A number of studies consistently show a beneficial effect of childhood physical activity on bone mineral accretion. Recent data suggest that hormonal milieu, stage of maturation and the type of activity influence how much and where (periosteal or endocortical surfaces) new bone is laid down in response to loading. Individuals who are consistently active during adolescence reach adulthood with better bone geometry, and greater bone strength. Pre and early puberty are an opportune time to introduce osteogenic activities. Summary: It is clear (in our opinion) that mechanical loading dominates bone adaptation during growth, and other factors such as nutrition, disease and hormonal milieu may mediate the effect. The exact prescription for optimal bone development is not yet clearly defined, but activities that induce moderate to high-impact with fast strain rates in unusual patterns have a positive effect on bone development, even with only a few loading cycles. Inserting rest between activity bouts has promise as a means of optimizing the bone response to loading in brief periods
Keyword bone geometry
bone mineral density
physical activity
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: Excellence in Research Australia (ERA) - Collection
School of Human Movement and Nutrition Sciences Publications
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Created: Wed, 25 Mar 2009, 01:32:06 EST by Alexandra Cooney on behalf of School of Human Movement and Nutrition Sciences