Comparative Analysis of Measuring Methods for Prediction of Critical Power in Rowers
2018
Ji-Hyeon Kim | Soo-Min Ha | Min-Seong Ha | Do-Yeon Kim
PURPOSE This study aims to carry out a comparative analysis of measuring methods to predict a critical power in rowers. METHODS Three types of tests were performed for seven male university rowers: 1) a critical power determination test, 2) a 3‐ and 6‐minute all‐out rowing test, 3) a 2,000 m simulated rowing test. The CP and W ́ were determined from the regression between work and time to exhaustion, derived from two exhaustive trials at 60, 70% of the maximal power, and 3‐, 6‐minute all‐out rowing test to estimate the EP and WEP. The test data were analyzed by paired t‐test, one‐way ANOVA, and Pearson correlation. RESULTS Comparing the differences between the 3‐ and 6‐minute all‐out tests, EP (p< .001) showed that the 6‐minute test was lower than the 3‐minute test and WEP (p<.001) was higher. There was a significant (p<.01) difference between the EP of the 3, 6‐minute test and CP of 60%, 70% Pmax, WEP of the 3, 6‐minute test and W ́ of 60%, 70% Pmax. The 2,000 m mean power of 2,000 m was positively correlated with 3‐minute EP, 6‐minute EP, 60% CP and 70% CP. The 6‐minute EP had a positive correlation with the 3‐minute EP, 60% CP and 70% CP, but 3‐minute EP did not have a correlation with 60% CP and 70% CP. CONCLUSIONS A non‐invasive 6‐minute all‐out critical power test using a rowing ergometer can be a practical protocol for monitoring the effectiveness of the training program during the off‐season or evaluating the 2,000 m record. Additionally, 6‐minute EP and WEP have moderate reliability, and are able to appropriately estimate the aerobic capacity and anaerobic capacity in rowers.
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