Twenty-metre shuttle run: (mis)representation, (mis)interpretation and (mis)use

Published on Nov 13, 2018in British Journal of Sports Medicine11.64
· DOI :10.1136/bjsports-2018-100082
Neil Armstrong44
Estimated H-index: 44
(University of Exeter),
Jo Welsman6
Estimated H-index: 6
(University of Exeter)
Recent publications in the British Journal of Sports Medicine ( BJSM) (mis)represent and (mis)interpret young people’s cardiorespiratory fitness (CRF) and potentially (mis)inform health promotion and clinical practice. 1 2 The papers recognise peak VO2as the criterion measure of CRF but base their estimations of peak VO2 on performances in 20 m shuttle runs (20mSRT). Moreover, and of serious concern to us, estimated peak VO2 is (mis)represented and (mis)interpreted in ratio with body mass (ie, in mL/kg/min). The papers identify a few of the limitations of shuttle running but a recent meta-analysis succinctly summarised the issues. It demonstrated that with children, over half of correlation coefficients between 20mSRT scores and peak VO2 explain less than 50% of the variance in peak VO2. The meta-analysis reported that the criterion-related validity of the 20mSRT with children was only ‘ moderate ’ and concluded, ‘testers must be aware that the performance score of the 20MSR test is simply estimation and not a direct measure of cardiorespiratory fitness’.3 An example of specious interpretation of 20mSRT scores is the assertion that …
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  • Citations (2)
#1Mark Loftin (University of Mississippi)H-Index: 17
#2Melinda Sothern (LSU: Louisiana State University)H-Index: 27
Last.Marc Bonis (LSU: Louisiana State University)H-Index: 2
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#1Neil Armstrong (University of Exeter)H-Index: 44
#2Grant R. Tomkinson (UniSA: University of South Australia)H-Index: 20
Last.Ulf Ekelund (University of Cambridge)H-Index: 78
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Cited By2
#1Alon Eliakim (Meir Medical Center)H-Index: 13
#2Bareket Falk (Brock University)H-Index: 29
Last.Kathleen F. Janz (UI: University of Iowa)H-Index: 7
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