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The great leap backward: changes in the jumping performance of Australian children aged 11 - 12-years between 1985 and 2015

Citation

Fraser, BJ and Blizzard, L and Tomkinson, GR and Lycett, K and Wake, M and Burgner, D and Ranganathan, S and Juonala, M and Dwyer, T and Venn, AJ and Olds, T and Magnussen, CG, The great leap backward: changes in the jumping performance of Australian children aged 11 - 12-years between 1985 and 2015, Journal of Sports Sciences pp. 1-7. ISSN 0264-0414 (2018) [Refereed Article]

Copyright Statement

2018 Informa UK Limited, trading as Taylor & Francis Group

DOI: doi:10.1080/02640414.2018.1523672

Abstract

Previous data have indicated relative stability over time of paediatric jumping performance, but few data exist since the early 2000s. This study quantified the 30-year secular changes in jumping performance of Australian children aged 11-12-years using data from the Australian Schools Health and Fitness Survey (1985, n = 1967) and Growing Up in Australia's Child Health CheckPoint (2015, n = 1765). Both cohorts measured jumping performance (standing long jump distance), anthropometric and demographic data. Secular changes in jumping performance means and quantiles were examined using multivariable linear and quantile regression. Between 1985 and 2015, jumping performance declined by 16.4 cm or by 11.2% (standardised change 0.66 SD, 95%CI 0.60 to 0.73). Adjustment for body mass reduced the effect by 32%, although the decline remained (absolute change - 11.1 cm, 95%CI -12.5 to -9.7; percent change 7.7%, 95%CI 6.7 to 8.6; standardised change 0.51 SD, 95%CI 0.44 to 0.57). This decline was evident across all quantiles. The jumping performance of Australian children aged 11-12-years has declined between 1985 and 2015, with body mass changes accounting for only part of the decline. Efforts should continue to promote paediatric muscular fitness, reduce adiposity, and aim to reverse this decline in jumping performance.

Item Details

Item Type:Refereed Article
Keywords:physical fitness, children, cross-sectional studies, muscular fitness, temporal trends
Research Division:Medical and Health Sciences
Research Group:Public Health and Health Services
Research Field:Epidemiology
Objective Division:Health
Objective Group:Clinical Health (Organs, Diseases and Abnormal Conditions)
Objective Field:Cardiovascular System and Diseases
UTAS Author:Fraser, BJ (Dr Brooklyn Fraser)
UTAS Author:Blizzard, L (Professor Leigh Blizzard)
UTAS Author:Dwyer, T (Professor Terry Dwyer)
UTAS Author:Venn, AJ (Professor Alison Venn)
UTAS Author:Magnussen, CG (Dr Costan Magnussen)
ID Code:129912
Year Published:2018
Web of Science® Times Cited:5
Deposited By:Menzies Institute for Medical Research
Deposited On:2018-12-20
Last Modified:2019-01-21
Downloads:0

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