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Physical Activity at Growth Induce Bone Mass Benefits Into Adulthood : A 15-Year Prospective Controlled Study

Rosengren, Björn E. LU ; Rempe, Jakob LU orcid ; Jehpsson, Lars LU ; Dencker, Magnus LU and Karlsson, Magnus K. LU (2022) In JBMR Plus 6(1).
Abstract

Daily school physical activity (PA) improves musculoskeletal traits. Whether or not benefits remain in adulthood is debated. We included in this study 131 children that took part in an intervention with 40 minutes of PA per school day (200 minutes per week) from age 6 to 9 years (grade one) to age 14 to 16 years (grade nine), whereas 78 children continued with national recommended school physical education of 60 minutes per week. Measurements were done with dual-energy X-ray absorptiometry (bone mineral content [BMC], bone mineral density [BMD], and bone area), and a computerized knee dynamometer (peak torque muscle strength) at study start, at the end of the intervention, and 7 years after the intervention. Group differences from study... (More)

Daily school physical activity (PA) improves musculoskeletal traits. Whether or not benefits remain in adulthood is debated. We included in this study 131 children that took part in an intervention with 40 minutes of PA per school day (200 minutes per week) from age 6 to 9 years (grade one) to age 14 to 16 years (grade nine), whereas 78 children continued with national recommended school physical education of 60 minutes per week. Measurements were done with dual-energy X-ray absorptiometry (bone mineral content [BMC], bone mineral density [BMD], and bone area), and a computerized knee dynamometer (peak torque muscle strength) at study start, at the end of the intervention, and 7 years after the intervention. Group differences from study start and end of the intervention to 7 years thereafter were estimated by analyses of covariance (adjusted for sex and follow-up time). Musculoskeletal gains from study start to 7 years after termination of the intervention were higher in the intervention group (total body less head BMC +182.5 g [95% confidence interval {CI}, 55.1–309.9] and BMD +0.03 g/cm2 [95% CI, 0.003–0.05], femoral neck area + 0.2 cm2 [95% CI, 0.1–0.4], and knee flexion peak torque muscle strength at 60 degrees per second +9.2 Nm [95% CI, 2.9–15.5]). There was no attenuation during the 7 years that followed termination of the intervention (all group comparisons p > 0.05). Benefits in musculoskeletal gains remain 7 years after termination of a daily school-based PA program, without attenuation after termination of the program. Daily school PA may counteract low bone mass and inferior muscle strength in adulthood.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
CLINICAL TRIAL, DXA, EXERCISE, FRACTURE PREVENTION, GENERAL POPULATION STUDIES
in
JBMR Plus
volume
6
issue
1
publisher
Wiley-Blackwell
external identifiers
  • scopus:85119988167
  • pmid:35079677
ISSN
2473-4039
DOI
10.1002/jbm4.10566
language
English
LU publication?
yes
id
580c66fc-b2d5-463b-af56-85e27570db2c
date added to LUP
2021-12-14 14:05:29
date last changed
2024-04-20 17:40:23
@article{580c66fc-b2d5-463b-af56-85e27570db2c,
  abstract     = {{<p>Daily school physical activity (PA) improves musculoskeletal traits. Whether or not benefits remain in adulthood is debated. We included in this study 131 children that took part in an intervention with 40 minutes of PA per school day (200 minutes per week) from age 6 to 9 years (grade one) to age 14 to 16 years (grade nine), whereas 78 children continued with national recommended school physical education of 60 minutes per week. Measurements were done with dual-energy X-ray absorptiometry (bone mineral content [BMC], bone mineral density [BMD], and bone area), and a computerized knee dynamometer (peak torque muscle strength) at study start, at the end of the intervention, and 7 years after the intervention. Group differences from study start and end of the intervention to 7 years thereafter were estimated by analyses of covariance (adjusted for sex and follow-up time). Musculoskeletal gains from study start to 7 years after termination of the intervention were higher in the intervention group (total body less head BMC +182.5 g [95% confidence interval {CI}, 55.1–309.9] and BMD +0.03 g/cm<sup>2</sup> [95% CI, 0.003–0.05], femoral neck area + 0.2 cm<sup>2</sup> [95% CI, 0.1–0.4], and knee flexion peak torque muscle strength at 60 degrees per second +9.2 Nm [95% CI, 2.9–15.5]). There was no attenuation during the 7 years that followed termination of the intervention (all group comparisons p &gt; 0.05). Benefits in musculoskeletal gains remain 7 years after termination of a daily school-based PA program, without attenuation after termination of the program. Daily school PA may counteract low bone mass and inferior muscle strength in adulthood.</p>}},
  author       = {{Rosengren, Björn E. and Rempe, Jakob and Jehpsson, Lars and Dencker, Magnus and Karlsson, Magnus K.}},
  issn         = {{2473-4039}},
  keywords     = {{CLINICAL TRIAL; DXA; EXERCISE; FRACTURE PREVENTION; GENERAL POPULATION STUDIES}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{JBMR Plus}},
  title        = {{Physical Activity at Growth Induce Bone Mass Benefits Into Adulthood : A 15-Year Prospective Controlled Study}},
  url          = {{http://dx.doi.org/10.1002/jbm4.10566}},
  doi          = {{10.1002/jbm4.10566}},
  volume       = {{6}},
  year         = {{2022}},
}