The purpose of this study is to measure the V ̇O2max of athletes using the KISS (Korea Institute of Sports Science) protocol to evaluate the cardiorespiratory endurance of athletes, and to verify the difference between raw data and V ̇O2max by filte...
The purpose of this study is to measure the V ̇O2max of athletes using the KISS (Korea Institute of Sports Science) protocol to evaluate the cardiorespiratory endurance of athletes, and to verify the difference between raw data and V ̇O2max by filtering section and analyze reliability. The purpose of this study is to contribute to the efficient use of V ̇O2max. For the subjects of the study, 40 male elite athletes in endurance events were selected. In this study, O2, CO2, and N2 values were analyzed by using the breath by breath system with Quark CPET (Cosmed, Italy) equipment, and the amount of exhaled and inhaled gas during breathing through the mouthpiece turbine. Using the measured results, Exercise duration time and time average filtering intervals of 10 seconds, 20 seconds, and 30 seconds, and smoothing filtering intervals of 5, 7, and 11 were set, respectively, and one-way ANOVA was performed to analyze the difference between each interval. To analyze the reliability between (one-way ANOVA) and V ̇O2max, Pearson's correlation analysis and bland-altman plot were analyzed. As a result of the study, there was no statistically significant difference in V ̇O2max between the filtered sections.
There was a statistically significant difference in maximum heart rate by filtering section (p<.01). In the reliability analysis for each filtering section, the highest confidence interval appeared in the smoothing section of 11 and the time average section of 10 seconds. Based on these data, when selecting the filtering section of V ̇O2max, attention should be paid to the data lost compared to the heart rate setting and raw data, and a follow-up study on changes in the middle part of the data by evaluating the anoxic threshold together is necessary.