Bone benefits of an 8-month in-school jumping intervention are maintained after 3 years: POWER PE follow up

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Title Bone benefits of an 8-month in-school jumping intervention are maintained after 3 years: POWER PE follow up
Author Weeks, Benjamin Kurt; Beck, Belinda Ruth
Publication Title Osteoporosis International
Year Published 2011
Abstract Aim: To determine if the musculoskeletal benefits of a twice-weekly, school-based, jumping regime in healthy adolescent boys and girls were maintained three years later. Methods: Subjects of the original POWER PE trial (n = 99) were contacted and asked to participate in 36-month follow-up testing. All original measures were completed including: sitting height, standing height, weight, calcaneal broadband ultrasound attenuation (BUA), whole body, hip and spine bone mineral content (BMC), lean tissue mass, and fat mass. Physical activity was recorded with the bone-specific physical activity questionnaire (BPAQ) and calcium intake was estimated with a calcium-focussed food questionnaire. Maturity was determined by Tanner staging and estimation of the age of peak height velocity (PHV). Muscle power was assessed using a vertical jump test. Results: Twenty-nine adolescents aged 17.3 ± 0.4 years agreed to participate. At 36 months, there were no differences in subject characteristics between control and intervention groups (p > 0.05). Three-year change in weight, lean mass, and fat mass were similar between groups (p > 0.05), however, height increased more for the intervention group (+5.1%) compared with controls (+2.6%) (p = 0.05). There were no significant group differences in three-year change in BUA or BMC at any site (p > 0.05). Conclusion: Findings suggest that adolescents will maintain osteogenic benefits from an in-school jumping intervention at least into young adulthood.
Peer Reviewed No
Published Yes
Publisher URI http://www.anzbms.org.au/
Conference name Australia and New Zealand Bone and Mineral Society Annual Scientific Meeting
Location Gold Coast, Australia
Date From 2011-09-04
Date To 2011-09-08
URI http://hdl.handle.net/10072/46526
Date Accessioned 2012-07-11; 2012-08-26T23:06:19Z
Research Centre Centre for Musculoskeletal Research; Griffith Health Institute
Faculty Griffith Health Faculty
Subject Exercise Physiology; Orthopaedics
Publication Type Conference Publications (Extract Paper)
Publication Type Code e3

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