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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)

Calcified tissue international, 2008-10, Vol.83 (4), p.243-250 [Peer Reviewed Journal]

Springer Science+Business Media, LLC 2008 ;ISSN: 0171-967X ;ISSN: 1432-0827 ;EISSN: 1432-0827 ;DOI: 10.1007/s00223-008-9166-x ;PMID: 18839047

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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)
Author: Hasselstrøm, H. A. ; Karlsson, M. K. ; Hansen, S. E. ; Grønfeldt, V. ; Froberg, K. ; Andersen, L. B.
Subjects: Anthropometry ; Biochemistry ; Biomedical and Life Sciences ; Bone and Bones - chemistry ; Bone and Bones - physiology ; Bone density ; Bone Density - physiology ; Bone Development - physiology ; Bone mineral density ; Bone size ; Cell Biology ; Child ; Children ; Children & youth ; Clinical Medicine ; Clinical outcomes ; Denmark ; Endocrinology ; Exercise ; Exercise intervention ; Female ; Gender differences ; Humans ; Klinisk medicin ; Life Sciences ; Longitudinal Studies ; Male ; Medical and Health Sciences ; Medicin och hälsovetenskap ; Motor Activity - physiology ; Orthopedics ; Ortopedi ; Physical education ; Population based ; Prospective Studies ; Puberty - physiology ; Sex Factors
Is Part Of: Calcified tissue international, 2008-10, Vol.83 (4), p.243-250
Description: 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.
Publisher: New York: Springer-Verlag
Language: English
Identifier: ISSN: 0171-967X
ISSN: 1432-0827
EISSN: 1432-0827
DOI: 10.1007/s00223-008-9166-x
PMID: 18839047
Source: MEDLINE
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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)

Springer Science+Business Media, LLC 2008 ;ISSN: 0171-967X ;ISSN: 1432-0827 ;EISSN: 1432-0827 ;DOI: 10.1007/s00223-008-9166-x ;PMID: 18839047

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