一种最大划船机协议，用于预测女性赛艇运动员的最大摄氧量。
A Maximal Rowing-Ergometer Protocol to Predict Maximal Oxygen Uptake in Female Rowers.
机构信息
Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense M,Denmark.
Department of Diabetes and Endocrinology, University Hospital of Southern Denmark, Esbjerg,Denmark.
出版信息
Int J Sports Physiol Perform. 2023 Jun 8;18(8):861-865. doi: 10.1123/ijspp.2022-0471. Print 2023 Aug 1.
BACKGROUND
Laboratory assessment of maximal oxygen uptake (V˙O2max) is physically and mentally draining for the athlete and requires expensive laboratory equipment. Indirect measurement of V˙O2max could provide a practical alternative to laboratory testing.
PURPOSE
To examine the relationship between the maximal power output (MPO) in an individualized 7 × 2-minute incremental test (INCR-test) and V˙O2max and to develop a regression equation to predict V˙O2max from MPO in female rowers.
METHODS
Twenty female club and Olympic rowers (development group) performed the INCR-test on a Concept2 rowing ergometer to determine V˙O2max and MPO. A linear regression analysis was used to develop a prediction of V˙O2max from MPO. Cross-validation analysis of the prediction equation was performed using an independent sample of 10 female rowers (validation group).
RESULTS
A high correlation coefficient (r = .94) was found between MPO and V˙O2max. The following prediction equation was developed: V˙O2max (mL·min-1) = 9.58 × MPO (W) + 958. No difference was found between the mean predicted V˙O2max in the INCR-test (3480 mL·min-1) and the measured V˙O2max (3530 mL·min-1). The standard error of estimate was 162 mL·min-1, and the percentage standard error of estimate was 4.6%. The prediction model only including MPO, determined during the INCR-test, explained 89% of the variability in V˙O2max.
CONCLUSION
The INCR-test is a practical and accessible alternative to laboratory testing of V˙O2max.
背景
实验室评估最大摄氧量（V˙O2max）对运动员来说既耗费体力又耗费脑力，且需要昂贵的实验室设备。间接测量 V˙O2max 可以为实验室测试提供一种实用的替代方法。
目的
检验在个性化的 7×2 分钟递增测试（INCR-test）中最大功率输出（MPO）与 V˙O2max 的关系，并为女性赛艇运动员建立从 MPO 预测 V˙O2max 的回归方程。
方法
20 名俱乐部和奥林匹克赛艇运动员（发展组）在Concept2 划船测功仪上进行 INCR-test，以确定 V˙O2max 和 MPO。使用线性回归分析建立从 MPO 预测 V˙O2max 的预测方程。使用另一个独立的 10 名女性赛艇运动员（验证组）的样本进行预测方程的交叉验证分析。
结果
MPO 与 V˙O2max 之间存在高度相关系数（r =.94）。建立了以下预测方程：V˙O2max（mL·min-1）=9.58×MPO（W）+958。在 INCR-test 中预测的平均 V˙O2max（3480 mL·min-1）与实测的 V˙O2max（3530 mL·min-1）之间没有差异。估计的标准误差为 162 mL·min-1，估计的标准误差百分比为 4.6%。仅包括在 INCR-test 中确定的 MPO 的预测模型，解释了 V˙O2max 变异性的 89%。
结论
INCR-test 是实验室 V˙O2max 测试的一种实用且易于实施的替代方法。
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