International normative 20 m shuttle run values from 1 142 026 children and youth representing 50 countries
Objective: To develop sex-specific and age-specific international norms for the 20 m shuttle run test (20mSRT) in children and youth (aged 9-17 years), and to estimate the prevalence meeting the FITNESSGRAM criterion-referenced standards for healthy cardiorespiratory endurance (CRE).
Methods: A systematic review was undertaken to identify papers explicitly reporting descriptive 20mSRT (with 1 min stages) data on children and youth since 1981. Data were included on apparently healthy (free from known disease/injury) 9-17 years old. Following standardisation to a common metric and for protocol differences, pseudo data were generated using Monte Carlo simulation, with population-weighted sex-specific and age-specific normative centiles generated using the Lambda Mu and Sigma (LMS) method. Sex-related and age-related differences were expressed as per cent and standardised differences in means. The prevalence with healthy CRE was estimated using the sex-specific and age-specific FITNESSGRAM criterion-referenced standards for Graphic.
Results: Norms were displayed as tabulated centiles and as smoothed centile curves for the 20mSRT using 4 common metrics (speed at the last completed stage, completed stages/minutes, laps and relative Graphic). The final data set included 1 142 026 children and youth from 50 countries, extracted from 177 studies. Boys consistently outperformed girls at each age group (mean difference±95% CI: 0.86±0.28 km/h or 0.79±0.20 standardised units), with the magnitude of age-related increase larger for boys than for girls. A higher proportion of boys (mean±95% CI: 67±14%) had healthy CRE than girls (mean±95% CI: 54±17%), with the prevalence of healthy CRE decreasing systematically with age.
Conclusions: This study provides the most comprehensive and up-to-date set of international sex-specific and age-specific 20mSRT norms for children and youth, which have utility for health and fitness screening, profiling, monitoring and surveillance.
© Copyright 2017 British Journal of Sports Medicine. BMJ Publishing Group Ltd of the BMA. Kaikki oikeudet pidätetään.
Aiheet: | urheilulääketiede tutkimusmenetelmä testi miespuolinen naispuolinen lapsi fyysinen toimintakyky analyysi vamma tilastot |
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Aihealueet: | biologiset ja lääketieteelliset tieteet junioriurheilu |
DOI: | 10.1136/bjsports-2016-095987 |
Julkaisussa: | British Journal of Sports Medicine |
Julkaistu: |
2017
|
Vuosikerta: | 51 |
Numero: | 21 |
Sivuja: | 1545-1554 |
Julkaisutyypit: | artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |