Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
©Journal of Sports Science and Medicine (2015) 14, 372 - 378

Research article
Maximal Oxygen Uptake cannot be Determined in the Incremental Phase of The Lactate Minimum Test on a Cycle Ergometer
Willian Eiji Miyagi1,3, Elvis de Souza Malta1,3, Alessandro Moura Zagatto2,3, 
Author Information
1 Post-Graduate Program in Sciences Motricity, UNESP - Univ Estadual Paulista, Rio Claro – SP, Brazil
2 Faculty of Sciences, Department of Physical Education, UNESP - Univ Estadual Paulista, Bauru – SP, Brazil
3 Laboratory of Physiology and Sport Performance (LAFIDE), Faculty of Sciences, UNESP - Univ Estadual Paulista, Bauru – SP, Brazil

Alessandro Moura Zagatto
✉ Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências de Bauru, Departamento de Educação Física, Avenida Engenheiro Luiz Edmundo Carrijo Coube Vargem Limpa, 17033360 - Bauru, SP - Brasil
Publish Date
Received: 20-10-2014
Accepted: 09-02-2015
Published (online): 01-06-2015
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The aim of this study was to investigate the maximal oxygen uptake (VO2MAX) determined using the incremental phase of the lactate minimum test (LM) on a cycle ergometer. Fifteen trained men were submitted to a graded exercise test (GXT) to evaluate the VO2MAX and LM. The total durations of the GXT and LM were 11.2±1.8 minutes (CI95%:10.2-12.3 minutes) and 25.3±3.2 minutes (CI95%:23.5-27.0), respectively. For the variables measured at exhaustion in both the GXT and LM, the oxygen uptake (54.6 ± 8.1 ml·kg−1·min−1vs 50.0 ± 7.7 ml·kg−1·min−1), carbon dioxide production (66.1 ± 7.5 ml·kg−1·min−1 vs 50.4 ± 8.0 ml·kg−1·min−1), ventilation (153.9 ± 19.0 L·min−1 vs 129.9 ± 22.9 L·min−1), respiratory exchange ratio (1.22 ± 0.10 vs1.01 ± 0.05), maximal power output achieved (331.6 ± 45.8 W vs 242.4 ± 41.0 W), heart rate (183.1 ± 6.9 bpm vs175.9 ± 10.6 bpm) and lactate (10.5 ± 2.3 mmol·L−1 vs 6.6 ± 2.2 mmol·L−1) were statistically lower in the LM (p < 0.05). However, the values of rating of perceived exertion (17.6 ± 2.5 for GXT and 17.2 ± 2.3 for LM) did not differ (ES = 0.12 and CV = 7.8%). There was no good agreement between the values of the VO2MAX from the GXT and VO2PEAK from the LM, as evidenced in the Bland-Altman plot (4.7 ml·kg−1·min−1 and 0.34 L·min−1 of mean differences, respectively), as well as the high values of the upper and lower limits of agreement. We conclude that the VO2PEAK values obtained in the incremental phase of the LM underestimate the VO2MAX.

Key words: Maximal aerobic power, aerobic capacity, aerobic and anaerobic fitness

           Key Points
  • The VO2MAX is not attained during the incremental phase of the lactate minimum test;
  • The physiological responses at exhaustion during LM are not similar to physiological responses measured during GXT;
  • There is a weak agreement between the peak VO2MAX measured at exhaustion during LM and the VO2 measured during GXT.
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