Are peak oxygen uptake and power output at maximal lactate steady state obtained from a 3-min allout cycle test?

(Erhält man mit einem dreiminütigen Ausbelastungsfahrradtest Spitzenwerte der Sauerstoffaufnahme und der Leistungsabgabe beim Laktat Steady State?)

The aim of the study was to examine whether 1) the power output attained in the last 30 s of a 3-min all-out test (P (end)) correlates with the power output at maximal lactate steady state (P (MLSS)) and whether 2) peak oxygen uptake (VO (2peak)) can be obtained from a 3-min all-out test in well-trained cyclists. 18 cyclists (23±3 years; 186.1±6.9 cm; 79.1±8.2 kg; VO (2peak): 63.2±5.2 mL · kg (-1) · min (-1)) performed a ramp test, a 3-min all-out test and several submaximal constant 30 min-workload tests at +15, 0, -15, -30, -45, -60,-75, -90 W of P (end) to obtain P (MLSS). P (MLSS) was significantly lower compared to P (END) ( P<0.001; mean difference: 54±18 W) with a high correlation (r=0.93; R (2)=0.87; P<0.001) but great intra-individual variability (15-90 W). There were no mean differences between the ramp-VO (2peak) and 3-min all-out cycling VO (2peak) ( P=0.29; mean difference: 133±514 mL · min (-1)) showing significant correlation (r=0.60; R (2)=0.37; P=0.006) but great intra-individual variability (1 057-1 312 mL · min (-1)). We therefore suggest that in well-trained cyclists a 3-min all-out test is 1) not sufficient to obtain P (MLSS) and 2) should not be applied to assess VO (2peak).
© Copyright 2011 International Journal of Sports Medicine. Thieme. Alle Rechte vorbehalten.

Schlagworte: Belastungsintensität Ergometrie Radsport Relation Laktat Blut O2-Aufnahme maximal Ausdauerdisziplinen
Notationen: Trainingswissenschaft Ausdauersportarten Biowissenschaften und Sportmedizin
DOI: 10.1055/s-0031-1271770
Veröffentlicht in: International Journal of Sports Medicine
Veröffentlicht: 2011
Jahrgang: 32
Heft: 6
Seiten: 433-437
Dokumentenarten: Artikel
Sprache: Englisch
Level: hoch