Real Assessment of Maximum Oxygen Uptake as a Verification After an Incremental Test Versus Without a Test

Abstract

The study was conducted to compare peak oxygen uptake (VO2peak) measured with the incremental graded test (GXT) (VO2peak) and two tests to verify maximum oxygen uptake, performed 15 min after the incremental test (VO2peak1) and on a separate day (VO2peak2). The aim was to determine which of the verification tests is more accurate and, more generally, to validate the VO2max obtained in the incremental graded test on cycle ergometer. The study involved 23 participants with varying levels of physical activity. Analysis of variance showed no statistically significant differences for repeated measurements (F = 2.28, p = 0.118, η2 = 0.12). Bland–Altman analysis revealed a small bias of the VO2peak1 results compared to the VO2peak (0.4 ml⋅min–1⋅kg–1) and VO2peak2 results compared to the VO2peak (−0.76 ml⋅min–1⋅kg–1). In isolated cases, it was observed that VO2peak1 and VO2peak2 differed by more than 5% from VO2peak. Considering the above, it can be stated that among young people, there are no statistically significant differences between the values of VO2peak measured in the following tests. However, in individual cases, the need to verify the maximum oxygen uptake is stated, but performing a second verification test on a separate day has no additional benefit.

Temporal Skin Temperature as an Indicator of Cardiorespiratory Fitness Assessed with Selected Methods

“…However, the exercise test protocol used in previous studies [ 25 ] is not commonly used in the diagnosis of performance capacity. Efforts lasting several minutes at 110% Pmax are more commonly performed in tests to verify VO 2 max [ 32 , 59 , 60 , 61 ]. Similar efforts are also used during training [ 29 ].…”

“…A graded exercise test (GXT) was performed to determine aerobic power [ 25 , 32 ]. The test was conducted on a Lode Excalibur Sport cycloergometer (Lode B.V., Groningen, The Netherlands), which was calibrated before the start of the study.…”

“…The analysis of the data was carried out using the results averaged every 30 s. The highest recorded oxygen uptake value (from 30 sec averaging) was considered to be the peak oxygen uptake in a verification test performed on a separate day (VO 2 peak2). Maximal oxygen uptake (VO 2 max) was considered to be the higher than VO 2 peak1 and VO 2 peak2, as in earlier work [ 32 ]. The power and oxygen uptake parameters analysed in this study were recalculated in relation to body mass (VO 2 peak1, VO 2 peak2 and VO 2 max) and lean body mass (Pmax·LBM −1 , VO 2 max·LBM −1 ).…”

ATPase Inhibitory Factor 1—A Novel Marker of Cellular Fitness and Exercise Capacity?

“…VO 2 peak is a marker of exercise capacity in healthy people and patients with various diseases. VO 2 peak reflects the function and interaction among the cardiovascular and respiratory systems, the efficiency of muscle oxygen consumption, and mitochondrial function [ 41 , 42 ]. After VO 2 is normalized to HR, the O 2 pulse becomes a noninvasive proxy of stroke volume, indirectly reflecting myocardial contractility [ 43 , 44 ].…”

Assessing aerobic physical efficiency through temple surface temperature measurements during light, heavy exercise, and recovery

“…Such efforts lead to lower blood lactate levels 20 compared to repeated sprints lasting 30 s each 14 . In addition, efforts performed with a power of 110% Pmax are used in performance diagnostics to verify peak oxygen uptake obtained in progressive tests 13 , 21 . However, the procedure described by Jastrzębska et al 10 has some shortcomings.…”