Int J Sports Physiol Perform. 2021 Mar 1;16(3):382-386. doi: 10.1123/ijspp.2019-0932. Epub 2021 Jan 4.
To examine the relationship between the maximal power output (MPO) in an individualized 7 × 2-minute incremental (INCR) test, average power in a 2k (W2k) rowing ergometer test, and maximal oxygen uptake (V˙O2max) and to develop a regression equation to predict V˙O2max.
A total of 34 male club rowers (age 18-30 y) performed a 2k and an INCR test in a Concept2 rowing ergometer to determine and compare MPO, W2k, and V˙O2max.
No significant difference was found between V˙O2max measured during INCR or 2k test (P = .73). A very high correlation coefficient (r = .96) was found between MPO and V˙O2max and between W2k and V˙O2max (r = .93). Linear regression analyses were developed for predicting V˙O2max from MPO: (1) V˙O2max (mL·min-1) = 11.49 × MPO + 810 and V˙O2max from W2k: (2) V˙O2max = 10.96 × W2k + 1168. Cross-validation analyses were performed using an independent sample of 14 rowers. There was no difference between the mean predicted V˙O2max in the INCR test (4.41 L·min-1) or the 2k test (4.39 L·min-1) and the observed V˙O2max (4.40 L·min-1). Technical error of measurement was 3.1% and 3.6%, standard error of estimate was 0.136 and 0.157 mL·min-1, and validation coefficients (r) were .95 and .94 using Equation (1) and (2), respectively.
A prediction model only including MPO or W2k explains 88% to 90% of the variability in V˙O2max and is suggested for practical use in male club rowers.
研究个体化 7×2 分钟递增（INCR）测试中的最大功率输出（MPO）、2k 划桨测力计测试中的平均功率（W2k）与最大摄氧量（V˙O2max）之间的关系，并建立一个回归方程来预测 V˙O2max。
共有 34 名男性俱乐部赛艇运动员（年龄 18-30 岁）在Concept2 划艇测功仪上进行 2k 和 INCR 测试，以确定和比较 MPO、W2k 和 V˙O2max。
INCR 或 2k 测试中测得的 V˙O2max 之间无显著性差异（P=.73）。MPO 与 V˙O2max 之间以及 W2k 与 V˙O2max 之间的相关系数均很高（r =.96，r =.93）。通过 MPO 建立了预测 V˙O2max 的线性回归分析：（1）V˙O2max（mL·min-1）= 11.49×MPO + 810，通过 W2k 建立了预测 V˙O2max 的线性回归分析：（2）V˙O2max = 10.96×W2k + 1168。使用 14 名划艇运动员的独立样本进行交叉验证分析。在 INCR 测试（4.41 L·min-1）或 2k 测试（4.39 L·min-1）中预测的 V˙O2max 均值与观察到的 V˙O2max（4.40 L·min-1）之间无差异。测量技术误差为 3.1%和 3.6%，估计标准误差分别为 0.136 和 0.157 mL·min-1，使用方程（1）和（2）分别得出验证系数（r）为.95 和.94。
仅包含 MPO 或 W2k 的预测模型可解释 V˙O2max 变异的 88%至 90%，建议在男性俱乐部赛艇运动员中实际使用。
