Developing a New Curvilinear Allometric Model to Improve the Fit and Validity of the 20-m Shuttle Run Test as a Predictor of Cardiorespiratory Fitness in Adults and Youth.
Journal
Sports medicine (Auckland, N.Z.)
ISSN: 1179-2035
Titre abrégé: Sports Med
Pays: New Zealand
ID NLM: 8412297
Informations de publication
Date de publication:
Jul 2021
Jul 2021
Historique:
pubmed:
25
9
2020
medline:
7
8
2021
entrez:
24
9
2020
Statut:
ppublish
Résumé
Doubts have been raised concerning the validity of the 20-m shuttle-run test (20 mSRT) as a predictor of cardiorespiratory fitness (CRF) in youth based on Léger's equation/model. An alternative allometric model has been published recently that is thought to provide, not only a superior fit (criterion validity) but also a more biologically and physiologically interpretable model (construct validity). The purposes of this study were to explore whether allometry can provide a more valid predictor of CRF using 20 mSRT compared with Léger's equation/model. We fitted and compared Léger's original model and an alternative allometric model using two cross-sectional datasets (youth, n = 306; adult n = 105) that contained measurements of CRF ([Formula: see text]/[Formula: see text]) and 20 mSRT performance. Quality-of-fit was assessed using explained variance (R The allometric models provided superior fits for the youth (explained variance R Not only do allometric models provide more accurate predictions of CRF ([Formula: see text]/[Formula: see text]; ml kg
Sections du résumé
BACKGROUND AND OBJECTIVES
OBJECTIVE
Doubts have been raised concerning the validity of the 20-m shuttle-run test (20 mSRT) as a predictor of cardiorespiratory fitness (CRF) in youth based on Léger's equation/model. An alternative allometric model has been published recently that is thought to provide, not only a superior fit (criterion validity) but also a more biologically and physiologically interpretable model (construct validity). The purposes of this study were to explore whether allometry can provide a more valid predictor of CRF using 20 mSRT compared with Léger's equation/model.
METHODS
METHODS
We fitted and compared Léger's original model and an alternative allometric model using two cross-sectional datasets (youth, n = 306; adult n = 105) that contained measurements of CRF ([Formula: see text]/[Formula: see text]) and 20 mSRT performance. Quality-of-fit was assessed using explained variance (R
RESULTS
RESULTS
The allometric models provided superior fits for the youth (explained variance R
CONCLUSION
CONCLUSIONS
Not only do allometric models provide more accurate predictions of CRF ([Formula: see text]/[Formula: see text]; ml kg
Identifiants
pubmed: 32970292
doi: 10.1007/s40279-020-01346-0
pii: 10.1007/s40279-020-01346-0
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1581-1589Commentaires et corrections
Type : CommentIn
Type : CommentIn
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