Compare Oxygen Uptake Kinetics between Cyclists

Wyatt, FB and Swaminathan, A. Implementing a mathematical model to compare oxygen uptake kinetics between cyclists and noncyclists during steady state. J Strength Cond Res 24(10): 2627–2631, 2010—The purpose was to compare a mathematical model of oxygen uptake and bioenergetic systems to an experimental protocol. Twelve (N = 12) noncyclists (NC), age (21.8 6 1.4 years), and 8 (N = 8) cyclists (C), age (30.5 6 5.7 years), were subjects. All subjects signed an informed consent. Oxygen consumption ( _ VO2, ml!kg!min) was measured with steady-state _ VO2 requirements and responses determined using the mathematical model from the following equation: V : o2 ðWRÞ 1⁄4 V : o2 ðrestÞ þ V : o2ðunloading pedalingÞþa:WR; DV : o2 ðt ;WRÞ 1⁄4DV : o2 ðWRÞ 1⁄4 1& e1⁄2&ðt&t d Þ=tO2( ! " . Exercise means (SD) included the following: V : o2NC ðWRÞ 1⁄4 48:4 ð16:6Þml&1!min&1 for NCs and V : o2CðWRÞ 1⁄4 56:4 ð24:95Þ ml&1!min&1 for Cs; DV : o2NC ðt ;WRÞ 1⁄4 6:38ml&1!min&1 for NCs and DV : o2C ðt ;WRÞ 1⁄4 7:44ml&1!min&1 for Cs. The correlation between the mathematical model and actual measure was statistically significant (p , 0.01) with a coefficient of r = 0.947. The experimental protocol was significantly associated with the mathematical model. This allows for a quantitative analysis and safe prediction of steadystate oxygen uptake conditions on populations before exposure to exercising conditions. Through more precise analysis of conditions, greater specificity of training may lead to more predictable adaptation outcomes.