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A 3-year Physical Activity Intervention Program Increases the Gain in Bone Mineral and Bone Width in Prepubertal Girls but not Boys: The Prospective Copenhagen School Child Interventions Study (CoSCIS)

Hasselstrom, H. A.; Karlsson, Magnus LU ; Hansen, S. E.; Gronfeldt, V.; Froberg, K. and Andersen, L. B. (2008) In Calcified Tissue International 83(4). p.243-250
Abstract
The aim of this study was to evaluate the effect of increasing the amount of time spent in physical education classes on bone mineral accrual and gain in bone size in prepubertal Danish children. A total of 135 boys and 108 girls, aged 6-8 years, were included in a school-based curriculum intervention program where the usual time spent in physical education classes was doubled to four classes (180 min) per week. The control group comprised age-matched children (62 boys and 76 girls) recruited from a separate community who completed the usual Danish school curriculum of physical activity (90 min/week). Dual-energy X-ray absorptiometry was used to evaluate bone mineral content (BMC; g), bone mineral density (g/cm(2)), and bone width at the... (More)
The aim of this study was to evaluate the effect of increasing the amount of time spent in physical education classes on bone mineral accrual and gain in bone size in prepubertal Danish children. A total of 135 boys and 108 girls, aged 6-8 years, were included in a school-based curriculum intervention program where the usual time spent in physical education classes was doubled to four classes (180 min) per week. The control group comprised age-matched children (62 boys and 76 girls) recruited from a separate community who completed the usual Danish school curriculum of physical activity (90 min/week). Dual-energy X-ray absorptiometry was used to evaluate bone mineral content (BMC; g), bone mineral density (g/cm(2)), and bone width at the calcaneus and distal forearm before and after 3 years of intervention. Anthropometrics and Tanner stages were evaluated on the same occasions. General physical activity was measured with an accelerometer worn for 4 days. In girls, the intervention group had a 12.5% increase (P = 0.04) in distal forearm BMC and a 13.2% increase (P = 0.005) in distal forearm scanned area compared with girls in the control group. No differences were found between the intervention and control groups in boys. Increasing the frequency of physical education classes for prepubertal children is associated with a higher accrual of bone mineral and higher gain in bone size after 3 years in girls but not in boys. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Population based, Children, Bone size, Exercise intervention, Bone mineral density
in
Calcified Tissue International
volume
83
issue
4
pages
243 - 250
publisher
Springer
external identifiers
  • wos:000260261200001
  • scopus:54349116940
ISSN
1432-0827
DOI
10.1007/s00223-008-9166-x
language
English
LU publication?
yes
id
cfc85c97-0f4d-476d-94cb-eb55d7fb7a6e (old id 1284802)
date added to LUP
2009-02-06 16:24:13
date last changed
2017-06-25 04:06:06
@article{cfc85c97-0f4d-476d-94cb-eb55d7fb7a6e,
  abstract     = {The aim of this study was to evaluate the effect of increasing the amount of time spent in physical education classes on bone mineral accrual and gain in bone size in prepubertal Danish children. A total of 135 boys and 108 girls, aged 6-8 years, were included in a school-based curriculum intervention program where the usual time spent in physical education classes was doubled to four classes (180 min) per week. The control group comprised age-matched children (62 boys and 76 girls) recruited from a separate community who completed the usual Danish school curriculum of physical activity (90 min/week). Dual-energy X-ray absorptiometry was used to evaluate bone mineral content (BMC; g), bone mineral density (g/cm(2)), and bone width at the calcaneus and distal forearm before and after 3 years of intervention. Anthropometrics and Tanner stages were evaluated on the same occasions. General physical activity was measured with an accelerometer worn for 4 days. In girls, the intervention group had a 12.5% increase (P = 0.04) in distal forearm BMC and a 13.2% increase (P = 0.005) in distal forearm scanned area compared with girls in the control group. No differences were found between the intervention and control groups in boys. Increasing the frequency of physical education classes for prepubertal children is associated with a higher accrual of bone mineral and higher gain in bone size after 3 years in girls but not in boys.},
  author       = {Hasselstrom, H. A. and Karlsson, Magnus and Hansen, S. E. and Gronfeldt, V. and Froberg, K. and Andersen, L. B.},
  issn         = {1432-0827},
  keyword      = {Population based,Children,Bone size,Exercise intervention,Bone mineral density},
  language     = {eng},
  number       = {4},
  pages        = {243--250},
  publisher    = {Springer},
  series       = {Calcified Tissue International},
  title        = {A 3-year Physical Activity Intervention Program Increases the Gain in Bone Mineral and Bone Width in Prepubertal Girls but not Boys: The Prospective Copenhagen School Child Interventions Study (CoSCIS)},
  url          = {http://dx.doi.org/10.1007/s00223-008-9166-x},
  volume       = {83},
  year         = {2008},
}