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Physical activity increases bone size in prepubertal boys and bone mass in prepubertal girls: A combined cross-sectional and 3-year longitudinal study

Sundberg, M; Gardsell, P; Johnell, Olof LU ; Karlsson, MK; Ornstein, Ewald LU ; Sandstedt, B and Sernbo, Ingemar LU (2002) In Calcified Tissue International 71(5). p.406-415
Abstract
This study evaluates the effect on the skeleton of physical activity from age 9 to 16. In 42 girls and 44 boys, bone mass and bone size were evaluated longitudinally by dual-energy X-ray absorptiometry (DXA) from ages 13 to 16. Physical activity from ages 9 to 13 was cross-sectionally evaluated at baseline (age 13). Girls with high physical activity from ages 9 to 13 at baseline had higher femoral neck bone mineral content (FN BMC; g) (P - 0.07), higher FN areal bone mineral density (FN aBMD; g/cm(2)), and higher FN volumetric BMD (FN vBMD; g/cm(3)) (both P < 0.05) compared with girls of low activity. FN width (cm) and head aBMD (an unloaded region) showed no differences when comparing the two groups. Three years of further high and low... (More)
This study evaluates the effect on the skeleton of physical activity from age 9 to 16. In 42 girls and 44 boys, bone mass and bone size were evaluated longitudinally by dual-energy X-ray absorptiometry (DXA) from ages 13 to 16. Physical activity from ages 9 to 13 was cross-sectionally evaluated at baseline (age 13). Girls with high physical activity from ages 9 to 13 at baseline had higher femoral neck bone mineral content (FN BMC; g) (P - 0.07), higher FN areal bone mineral density (FN aBMD; g/cm(2)), and higher FN volumetric BMD (FN vBMD; g/cm(3)) (both P < 0.05) compared with girls of low activity. FN width (cm) and head aBMD (an unloaded region) showed no differences when comparing the two groups. Three years of further high and low activity (from ages 13 to 16) did not yield any increased differences between the two groups. Boys with high physical activity from ages 9 to 13, had at baseline higher FN BMC, FN aBMD, and FN width (all P < 0.05) compared with boys with low activity. FN vBMD and head aBMD showed no differences when comparing the two groups. Three years of further high and low activity did not yield any increased differences between the two groups. We conclude that exercise may yield skeletal benefits before age 13, and that 3 years of continued high or low level activity up to age 16 did not yield any increased differences in bone size or bone mass in either girls or boys. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
adolescents, bone mineral density, growth, longitudinal, activity, physical
in
Calcified Tissue International
volume
71
issue
5
pages
406 - 415
publisher
Springer
external identifiers
  • pmid:12172652
  • wos:000179484600005
  • scopus:0042354773
ISSN
1432-0827
DOI
10.1007/s00223-001-1105-z
language
English
LU publication?
yes
id
e59c87a0-499b-47d8-950e-e0ffcd48cda8 (old id 892319)
date added to LUP
2008-01-23 23:02:19
date last changed
2017-12-10 04:29:59
@article{e59c87a0-499b-47d8-950e-e0ffcd48cda8,
  abstract     = {This study evaluates the effect on the skeleton of physical activity from age 9 to 16. In 42 girls and 44 boys, bone mass and bone size were evaluated longitudinally by dual-energy X-ray absorptiometry (DXA) from ages 13 to 16. Physical activity from ages 9 to 13 was cross-sectionally evaluated at baseline (age 13). Girls with high physical activity from ages 9 to 13 at baseline had higher femoral neck bone mineral content (FN BMC; g) (P - 0.07), higher FN areal bone mineral density (FN aBMD; g/cm(2)), and higher FN volumetric BMD (FN vBMD; g/cm(3)) (both P &lt; 0.05) compared with girls of low activity. FN width (cm) and head aBMD (an unloaded region) showed no differences when comparing the two groups. Three years of further high and low activity (from ages 13 to 16) did not yield any increased differences between the two groups. Boys with high physical activity from ages 9 to 13, had at baseline higher FN BMC, FN aBMD, and FN width (all P &lt; 0.05) compared with boys with low activity. FN vBMD and head aBMD showed no differences when comparing the two groups. Three years of further high and low activity did not yield any increased differences between the two groups. We conclude that exercise may yield skeletal benefits before age 13, and that 3 years of continued high or low level activity up to age 16 did not yield any increased differences in bone size or bone mass in either girls or boys.},
  author       = {Sundberg, M and Gardsell, P and Johnell, Olof and Karlsson, MK and Ornstein, Ewald and Sandstedt, B and Sernbo, Ingemar},
  issn         = {1432-0827},
  keyword      = {adolescents,bone mineral density,growth,longitudinal,activity,physical},
  language     = {eng},
  number       = {5},
  pages        = {406--415},
  publisher    = {Springer},
  series       = {Calcified Tissue International},
  title        = {Physical activity increases bone size in prepubertal boys and bone mass in prepubertal girls: A combined cross-sectional and 3-year longitudinal study},
  url          = {http://dx.doi.org/10.1007/s00223-001-1105-z},
  volume       = {71},
  year         = {2002},
}