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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 Physiology 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
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Journal of Applied Physiology
volume
Nov 19
pages
533 - 541
publisher
Springer
external identifiers
  • wos:000262826200004
  • pmid:19018558
  • scopus:59449109406
  • pmid:19018558
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
2016-04-04 08:25:54
date last changed
2024-01-12 04:49:28
@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 Physiology}},
  title        = {{Effects of a daily school based physical activity intervention program on muscle development in prepubertal girls.}},
  url          = {{https://lup.lub.lu.se/search/files/5179526/1275141.pdf}},
  doi          = {{10.1007/s00421-008-0932-2}},
  volume       = {{Nov 19}},
  year         = {{2009}},
}