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Erschienen in: Sports Medicine 3/2021

24.12.2020 | Systematic Review

Temporal Trends in the Standing Broad Jump Performance of 10,940,801 Children and Adolescents Between 1960 and 2017

verfasst von: Grant R. Tomkinson, Tori Kaster, Faith L. Dooley, John S. Fitzgerald, Madison Annandale, Katia Ferrar, Justin J. Lang, Jordan J. Smith

Erschienen in: Sports Medicine | Ausgabe 3/2021

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Abstract

Background

The standing broad jump (SBJ) is an excellent functional measure of explosive lower-body strength that is significantly related to health among children and adolescents.

Objectives

The aim of this study was to estimate national (country-level) and international (pooled global data) temporal trends in SBJ performance for children and adolescents, and to examine the relationships between national trends in SBJ performance and national trends in health-related and socioeconomic/demographic indicators.

Methods

Data were obtained from a systematic search of studies reporting temporal trends in SBJ performance for 9- to 17-year-olds, and by examining national fitness datasets. Sample-weighted regression models estimated trends at the study/dataset-country-sex-age level, with national and international trends estimated by a post-stratified population-weighting procedure. Pearson’s correlations quantified relationships between national trends in SBJ performance and national trends in health-related and socioeconomic/demographic indicators.

Results

Data from 34 studies/datasets were extracted to estimate trends for 10,940,801 children and adolescents from 24 high-, 4 upper-middle-, and 1 low-income countries between 1960 and 2017. Collectively, there was a negligible (per decade) improvement in SBJ performance of 1.73 cm (95% CI 1.71–1.75), 0.99% (95% CI 0.97–1.01) or a standardized effect size of 0.07 (0.07–0.07) over the entire period, with the rate of improvement steady from the 1960s to the 1980s, slowing in the 1990s, before declining. Sex- and age-related temporal differences were negligible. Trends differed between countries, with most countries experiencing declines. National trends in SBJ performance were not significantly related to national trends in health-related and socioeconomic/demographic indicators.

Conclusions

SBJ performance of children and adolescents has declined since 2000 (at least among most of the countries in this analysis) and is suggestive of a modern decline in functional explosive lower-body strength. Growing recognition of the importance of muscular fitness as a marker of population health highlights the need for continued tracking of temporal trends in SBJ, especially among low- and lower-middle-income countries for which temporal data are lacking.

PROSPERO Registration Number

CRD42013003657.
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Metadaten
Titel
Temporal Trends in the Standing Broad Jump Performance of 10,940,801 Children and Adolescents Between 1960 and 2017
verfasst von
Grant R. Tomkinson
Tori Kaster
Faith L. Dooley
John S. Fitzgerald
Madison Annandale
Katia Ferrar
Justin J. Lang
Jordan J. Smith
Publikationsdatum
24.12.2020
Verlag
Springer International Publishing
Erschienen in
Sports Medicine / Ausgabe 3/2021
Print ISSN: 0112-1642
Elektronische ISSN: 1179-2035
DOI
https://doi.org/10.1007/s40279-020-01394-6

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