Modelling maximal oxygen uptake in athletes: allometric scaling versus ratio-scaling in relation to body mass
Annals of the Academy of Medicine, Singapore
;
: 300-306, 2008.
Article
Dans Anglais
| WPRIM
| ID: wpr-358823
ABSTRACT
<p><b>INTRODUCTION</b>Maximal oxygen uptake, V&O2 peak, among athletes is an important foundation for all training programmes to enhance competition performance. In Singapore, the V& O2 peak of athletes is apparently not widely known. There is also controversy in the modelling or scaling of maximal oxygen uptake for differences in body size - the use of ratio-scaling remains common but allometric scaling is gaining acceptance as the method of choice.</p><p><b>MATERIALS AND METHODS</b>One hundred fifty-eight male (age, 21.7 +/- 4.9 years; body mass, 64.8 +/- 8.6 kg) and 28 female (age, 21.9 +/- 7.0 years; body mass, 53.0 +/- 7.0 kg) athletes completed a maximal treadmill run to volitional exhaustion, to determine VO2 peak.</p><p><b>RESULTS</b>V& O2 peak in L/min of female athletes was 67.8% that of male athletes (2.53 +/- 0.29 vs. 3.73 +/- 0.53 L/min), and V& O2 peak in mL/kg BM1.0/min of female athletes was 83.4% of male athletes (48.4 +/- 7.2 vs. 58.0 +/- 6.9 mL/kg BM1.0/min). Ratio-scaling of V& O2 peak did not create a size-free variable and was unsuitable as a scaling method. Instead, V& O2 peak, that was independent of the effect of body mass in male and female athletes, was best described using 2 separate and allometrically-derived sex-specific regression equations; these were V& O2 peak = 2.23 BM0.67 for male athletes and V& O2 peak = 2.23 BM0.24 for female athletes.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Consommation d'oxygène
/
Physiologie
/
Singapour
/
Sports
/
Aptitude physique
/
Mensurations corporelles
/
Épreuve d'effort
/
Méthodes
/
Modèles biologiques
/
Monitorage physiologique
Type d'étude:
Étude pronostique
Limites du sujet:
Adolescent
/
Adulte
/
Femelle
/
Humains
/
Mâle
Pays comme sujet:
Asie
langue:
Anglais
Texte intégral:
Annals of the Academy of Medicine, Singapore
Année:
2008
Type:
Article
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