Aadland E, Solbraa A K, Resaland G K, Steene-Johannessen J, Edvardsen E, Hansen B H, Anderssen S A
Faculty of Teacher Education and Sports, Sogn og Fjordane University College, Sogndal, Norway.
Department of Health Studies, Kristiania University College, Oslo, Norway.
Scand J Med Sci Sports. 2017 Nov;27(11):1248-1257. doi: 10.1111/sms.12750. Epub 2016 Oct 17.
The aims of the present study were to provide reference values for time to exhaustion (TTE) on a modified Balke treadmill protocol, and to perform a cross-validation of TTE as a measure of maximal oxygen consumption (VO ), in Norwegian men and women 20-85 years of age. Reference values for TTE were derived from a national sample of 765 subjects. An additional sample of 119 subjects was included in the cross-validation (total n = 884), where prediction equations for VO was established. A decline in TTE was seen with increased age. Prediction of VO in an independent dataset (n = 319) resulted in a R = 0.78 and standard error of the estimate = 4.55 mL/kg/min. The observed-predicted bias was small (mean difference <1.24 mL/kg/min), whereas random error was considerable (95% limits of agreement ± 7.11-9.70 mL/kg/min) across age in both men and women. Despite limitations concerning the prediction of VO on an individual level, TTE from the Balke protocol is a good measure of aerobic fitness in adults across a range of settings, and could be evaluated according to the suggested reference values.
本研究的目的是为改良的巴尔克跑步机方案的力竭时间（TTE）提供参考值，并对TTE作为最大摄氧量（VO₂）的一种测量方法进行交叉验证，研究对象为20至85岁的挪威男性和女性。TTE的参考值来自765名受试者的全国样本。交叉验证纳入了另外119名受试者样本（总计n = 884），并建立了VO₂的预测方程。随着年龄增长，TTE呈下降趋势。在一个独立数据集（n = 319）中对VO₂进行预测，得出R² = 0.78，估计标准误差 = 4.55 mL/kg/min。观察到的预测偏差较小（平均差异<1.24 mL/kg/min），而男性和女性在各年龄段的随机误差都相当大（95%一致性界限为±7.11 - 9.70 mL/kg/min）。尽管在个体水平上预测VO₂存在局限性，但巴尔克方案中的TTE在一系列环境中都是衡量成年人有氧适能的良好指标，并且可以根据建议的参考值进行评估。
