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Is there a critical period for bone response to weight-bearing exercise in children and adolescents? a systematic review
  1. K J MacKelvie1,
  2. K M Khan1,2,
  3. H A McKay1
  1. 1School of Human Kinetics, University of British Columbia, Vancouver, BC, Canada
  2. 2Department of Family Medicine, University of British Columbia
  1. Correspondence to:
    Dr Khan, School of Human Kinetics, University of British Columbia, 6081 University Blvd, Vancouver, BC V6T 1Z1, Canada;
    kkhan{at}interchange.ubc.ca

Abstract

This systematic review examines and compares the bone mineral changes in children and adolescents, as measured by dual energy x ray absorptiometry, reported in exercise intervention studies. The effects of hormonal factors and growth on bone mineral change during puberty are examined, and the possibility of a critical period during which bone is especially adaptable to exercise is discussed.

  • bone mineral content
  • bone mineral density
  • weight-bearing exercise
  • osteoporosis
  • puberty
  • DEXA, dual energy x ray absorptiometry
  • BMD, bone mineral density
  • BMC, bone mineral content
  • IGF, insulin-like growth factor
  • GH, growth hormone

https://doi.org/10.1136/bjsm.36.4.250

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