School of Science and Technology, University of New England, Armidale, New South Wales, Australia; and.
School of Health, University of New England, Armidale, New South Wales, Australia.
J Strength Cond Res. 2020 Dec;34(12):3489-3497. doi: 10.1519/JSC.0000000000002253.
Denham, J, Scott-Hamilton, J, Hagstrom, AD, and Gray, AJ. Cycling power outputs predict functional threshold power and maximum oxygen uptake. J Strength Cond Res 34(12): 3489-3497, 2020-Functional threshold power (FTP) has emerged as a correlate of lactate threshold and is commonly assessed by recreational and professional cyclists for tailored exercise programing. To identify whether results from traditional aerobic and anaerobic cycling tests could predict FTP and V[Combining Dot Above]O2max, we analyzed the association between estimated FTP, maximum oxygen uptake (V[Combining Dot Above]O2max [ml·kg·min]) and power outputs obtained from a maximal cycle ergometry cardiopulmonary exercise test (CPET), and a 30-second Wingate test in a heterogeneous cohort of cycle-trained and untrained individuals (N = 40, mean ± SD; age: 32.6 ± 10.6 years; relative V[Combining Dot Above]O2max: 46.8 ± 9.1 ml·kg·min). The accuracy and sensitivity of the prediction equations were also assessed in young men (N = 11) before and after a 6-week sprint interval training intervention. Moderate-to-strong positive correlations were observed between FTP, relative V[Combining Dot Above]O2max, and power outputs achieved during incremental and 30-second Wingate cycling tests (r = 0.39-0.965, all p ≤ .05). Whilst maximum power achieved during incremental cycle testing (Pmax) and relative V[Combining Dot Above]O2max were predictors of FTP (r = 0.93), age and FTP (W·kg) estimated relative V[Combining Dot Above]O2max (r = 0.80). Our findings confirm that FTP predominantly relies on aerobic metabolism and indicate that both prediction models are sensitive enough to detect meaningful exercise-induced changes in FTP and V[Combining Dot Above]O2max. Thus, coaches should consider limiting the time and load demands placed on athletes by conducting a maximal cycle ergometry CPET to estimate FTP. In addition, a 20-minute FTP test is a convenient method to assess V[Combining Dot Above]O2max and is particularly relevant for exercise professionals without access to expensive CPET equipment.
登汉姆、斯科特-汉密尔顿、哈格斯特罗姆和格雷。自行车功率输出可预测功能阈功率和最大摄氧量。《力量与调节研究杂志》34（12）：3489-3497，2020 年——功能阈功率（FTP）已成为乳酸阈的相关指标，常用于休闲和职业自行车运动员进行定制化的运动计划。为了确定传统的有氧和无氧自行车测试结果是否可以预测 FTP 和最大摄氧量（V[Combining Dot Above]O2max），我们分析了最大心肺运动测试（CPET）中估计的 FTP、最大摄氧量（V[Combining Dot Above]O2max [ml·kg·min]）和功率输出与 30 秒威格特测试之间的关联，以及一组异质的经过训练和未经训练的个体（N = 40，平均值±标准差；年龄：32.6±10.6 岁；相对 V[Combining Dot Above]O2max：46.8±9.1 ml·kg·min）。还评估了预测方程在年轻男性（N = 11）进行 6 周冲刺间歇训练干预前后的准确性和敏感性。在递增和 30 秒威格特自行车测试中，FTP、相对 V[Combining Dot Above]O2max 和功率输出之间观察到中等至强正相关（r = 0.39-0.965，所有 p ≤.05）。虽然递增式自行车测试中最大输出功率（Pmax）和相对 V[Combining Dot Above]O2max 是 FTP 的预测因子（r = 0.93），但年龄和 FTP（W·kg）估计的相对 V[Combining Dot Above]O2max（r = 0.80）也是预测因子。我们的发现证实，FTP 主要依赖于有氧代谢，并且表明这两种预测模型都足够敏感，可以检测到 FTP 和 V[Combining Dot Above]O2max 中与运动相关的有意义的变化。因此，教练应该考虑通过进行最大心肺运动测试来估计 FTP，以限制对运动员的时间和负荷要求。此外，20 分钟 FTP 测试是评估 V[Combining Dot Above]O2max 的便捷方法，对于没有昂贵 CPET 设备的运动专业人员特别相关。
