Critical Speed as a Measure of Aerobic Fitness for Male Rugby Union Players.
Int J Sports Physiol Perform
; 14(4): 518-524, 2019 Apr 01.
Article
em En
| MEDLINE
| ID: mdl-30300035
ABSTRACT
PURPOSE:
To compare critical speed (CS) derived from all-out testing (AOT) for linear and shuttle running with metrics from a graded exercise test, the Yo-Yo Intermittent Recovery Test Level 1 (YYIR1), and estimation of an 800-m-shuttle time trial.METHODS:
Twelve male rugby players completed a graded exercise test, the YYIR1, a linear AOT, shuttle AOTs of 25 and 50 m, and an 800-m-shuttle time trial consisting of 32 × 25-m shuttles.RESULTS:
Strong linear correlations were observed between maximum oxygen uptake ( VËO2max ) and CS (m·s-1) derived from the linear AOT (3.68 [0.62], r = .90, P < .01) and 50-m-shuttle AOT (3.19 [0.26], r = .83, P < .01). Conversely, VËO2max showed lower correlations with speeds evoking CS from 25-m AOT (2.86 [0.18], r = .42, P = .18) and YYIR1 (4.36 [0.11], r = .55, P = .07). The 800-m time trial (213.58 [15.84] s) was best predicted using parameters from the 25-m AOT (r = .93, SEE = 6.60 s, P < .001).CONCLUSIONS:
The AOT is a valuable method of assessing performance-specific fitness, with CS from linear and 50-m-shuttle AOTs being strong predictors of VËO2max , rivaling metrics from the graded exercise test. The YYIR1 offered limited utility compared with the AOT method.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Corrida
/
Teste de Esforço
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Futebol Americano
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Aptidão Cardiorrespiratória
Tipo de estudo:
Observational_studies
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Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adult
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Humans
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Male
Idioma:
En
Revista:
Int J Sports Physiol Perform
Ano de publicação:
2019
Tipo de documento:
Article