Maximal oxygen uptake versus maximal power output in children
Deutscher übersetzter Titel: | Maximale Sauerstoffaufnahme vs. maximale Kraftentwicklung bei Kindern |
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Autor: | Dencker, Magnus; Thorsson, Ola; Karlsson, Magnus K.; Lindén, Christian; Wollmer, Per; Andersen, L.B. |
Erschienen in: | Journal of sports sciences |
Veröffentlicht: | 26 (2008), 13, S. 1397-1402, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0264-0414, 1466-447X |
DOI: | 10.1080/02640410802199789 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201502001086 |
Quelle: | BISp |
Abstract
Maximal oxygen uptake ([Vdot]O2max) is considered the optimal method to assess aerobic fitness. The measurement of [Vdot]O2max, however, requires special equipment and training. Maximal exercise testing with determination of maximal power output offers a more simple approach. This study explores the relationship between [Vdot]O2max and maximal power output in 247 children (139 boys and 108 girls) aged 7.9–11.1 years. Maximal oxygen uptake was measured by indirect calorimetry during a maximal ergometer exercise test with an initial workload of 30 W and 15 W • min−1 increments. Maximal power output was also measured. A sample (n = 124) was used to calculate reference equations, which were then validated using another sample (n = 123). The linear reference equation for both sexes combined was: [Vdot]O2max (ml • min−1) = 96 + 10.6 • maximal power + 3.5 • body mass. Using this reference equation, estimated [Vdot]O2max per unit of body mass (ml • min−1 • kg−1) calculated from maximal power correlated closely with the direct measurement of [Vdot]O2max (r = 0.91, P <0.001). Bland-Altman analysis gave a mean limits of agreement of 0.2±2.9 (ml • min−1 • kg−1) (1 s). Our results suggest that maximal power output serves as a good surrogate measurement for [Vdot]O2max in population studies of children aged 8–11 years. Verf.-Referat