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Effects of a daily school based physical activity intervention program on muscle development in prepubertal girls.

Stenevi Lundgren, Susanna LU ; Daly, Robin; Lindén, Christian LU ; Gärdsell, Per and Karlsson, Magnus LU (2009) In European Journal of Applied Physiology1999-01-01+01:00 Nov 19. p.533-541
Abstract
This 12-month prospective controlled intervention evaluated the effect of a general school based physical activity program on muscle strength, physical performance and body composition in prepubertal girls. Fifty-three girls aged 7-9 years involved in a school based exercise program [40 min/day of general physical activity per school day (200 min/week)] were compared with 50 age-matched girls who participated in the general Swedish physical education curriculum (mean 60 min/week). Body composition (DXA), isokinetic peak torque (PT) of the knee extensors and flexors at 60 and 180 degrees /s, and vertical jump height (VJH) were assessed at baseline and 12 months. The annual gain in weight was similar between the groups, but there was a... (More)
This 12-month prospective controlled intervention evaluated the effect of a general school based physical activity program on muscle strength, physical performance and body composition in prepubertal girls. Fifty-three girls aged 7-9 years involved in a school based exercise program [40 min/day of general physical activity per school day (200 min/week)] were compared with 50 age-matched girls who participated in the general Swedish physical education curriculum (mean 60 min/week). Body composition (DXA), isokinetic peak torque (PT) of the knee extensors and flexors at 60 and 180 degrees /s, and vertical jump height (VJH) were assessed at baseline and 12 months. The annual gain in weight was similar between the groups, but there was a greater increase in total body and regional lean mass (P < 0.05) and fat mass (P < 0.01) in the exercise group. Mean gains in knee extensor PT at 60 and 180 degrees /s were 7.0-7.6% greater in the exercise group (P ranging <0.05-<0.001). No significant differences were detected in VJH. In conclusion, increasing school based physical education to at least 3 h/week provides a feasible strategy to enhance the development of muscle strength and lean mass in prepubertal girls. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Journal of Applied Physiology1999-01-01+01:00
volume
Nov 19
pages
533 - 541
publisher
Springer
external identifiers
  • wos:000262826200004
  • pmid:19018558
  • scopus:59449109406
ISSN
1439-6327
DOI
10.1007/s00421-008-0932-2
language
English
LU publication?
yes
id
1181ab34-d10e-4511-95b1-02aa2e47493d (old id 1271330)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/19018558?dopt=Abstract
date added to LUP
2008-12-04 16:41:51
date last changed
2017-12-10 04:43:05
@article{1181ab34-d10e-4511-95b1-02aa2e47493d,
  abstract     = {This 12-month prospective controlled intervention evaluated the effect of a general school based physical activity program on muscle strength, physical performance and body composition in prepubertal girls. Fifty-three girls aged 7-9 years involved in a school based exercise program [40 min/day of general physical activity per school day (200 min/week)] were compared with 50 age-matched girls who participated in the general Swedish physical education curriculum (mean 60 min/week). Body composition (DXA), isokinetic peak torque (PT) of the knee extensors and flexors at 60 and 180 degrees /s, and vertical jump height (VJH) were assessed at baseline and 12 months. The annual gain in weight was similar between the groups, but there was a greater increase in total body and regional lean mass (P &lt; 0.05) and fat mass (P &lt; 0.01) in the exercise group. Mean gains in knee extensor PT at 60 and 180 degrees /s were 7.0-7.6% greater in the exercise group (P ranging &lt;0.05-&lt;0.001). No significant differences were detected in VJH. In conclusion, increasing school based physical education to at least 3 h/week provides a feasible strategy to enhance the development of muscle strength and lean mass in prepubertal girls.},
  author       = {Stenevi Lundgren, Susanna and Daly, Robin and Lindén, Christian and Gärdsell, Per and Karlsson, Magnus},
  issn         = {1439-6327},
  language     = {eng},
  pages        = {533--541},
  publisher    = {Springer},
  series       = {European Journal of Applied Physiology1999-01-01+01:00},
  title        = {Effects of a daily school based physical activity intervention program on muscle development in prepubertal girls.},
  url          = {http://dx.doi.org/10.1007/s00421-008-0932-2},
  volume       = {Nov 19},
  year         = {2009},
}