Coquart Jérémy B, Eston Roger G, Lemaître Frédéric, Bart Frédéric, Tourny Claire, Grosbois Jean-Marie
Faculty of Sport Sciences, EA 3832, CETAPS, University of Rouen, Mont Saint Aignan, France,
Eur J Appl Physiol. 2015 Feb;115(2):365-72. doi: 10.1007/s00421-014-3023-6. Epub 2014 Oct 18.
We assessed the validity of predicting peak oxygen uptake ([Formula: see text]O2 peak) from the relationship between oxygen uptake ([Formula: see text]O2) and overall ratings of perceived exertion (RPE) obtained during the initial stages of a cardiopulmonary exercise test (CPET).
Fifteen healthy participants and 18 patients with chronic obstructive pulmonary disease (COPD) performed a maximal CPET, during which [Formula: see text]O2 and RPE were measured until RPE15.
Individual regressions between [Formula: see text]O2 and RPE ≤ 15 were extrapolated to RPE19 to predict [Formula: see text]O2 peak. Mean actual and predicted [Formula: see text]O2 peak were not significantly different in healthy women (18.9 ± 4.1 vs. 20.4 ± 4.5 mL kg(-1) min(-1), respectively) and men (28.9 ± 7.8 vs. 29.7 ± 8.5 mL kg(-1) min(-1), respectively), or in women (15.2 ± 4.7 vs. 15.8 ± 5.0 mL kg(-1) min(-1), respectively) and men (16.2 ± 4.4 vs. 17.4 ± 5.4 mL kg(-1) min(-1), respectively) with COPD (P = 0.067). Moreover, actual and predicted [Formula: see text]O2 peak were highly correlated in healthy participants and COPD patients (r ≥ 0.89; P < 0.001). The bias and 95 % limits of agreement were -1.0 ± 4.0 and -1.0 ± 4.6 mL kg(-1) min(-1) for healthy and COPD participants, respectively.
[Formula: see text]O2 peak can be predicted with acceptable accuracy in healthy participants and patients with COPD from the individual relationship between [Formula: see text]O2 and RPE ≤ 15.
我们通过评估心肺运动试验（CPET）初始阶段获得的摄氧量（[公式：见正文]O₂）与总体主观用力程度（RPE）之间的关系，来评估预测峰值摄氧量（[公式：见正文]O₂峰值）的有效性。
15名健康参与者和18名慢性阻塞性肺疾病（COPD）患者进行了最大CPET，在此期间测量[公式：见正文]O₂和RPE，直至RPE达到15。
将[公式：见正文]O₂与RPE≤15之间的个体回归外推至RPE 19以预测[公式：见正文]O₂峰值。健康女性（分别为18.9±4.1与20.4±4.5 mL·kg⁻¹·min⁻¹）和男性（分别为28.9±7.8与29.7±8.5 mL·kg⁻¹·min⁻¹），以及COPD女性（分别为15.2±4.7与15.8±5.0 mL·kg⁻¹·min⁻¹）和男性（分别为16.2±4.4与17.4±5.4 mL·kg⁻¹·min⁻¹）的实际和预测[公式：见正文]O₂峰值差异均无统计学意义（P = 0.067）。此外，健康参与者和COPD患者的实际和预测[公式：见正文]O₂峰值高度相关（r≥0.89；P<0.001）。健康和COPD参与者的偏差及95%一致性界限分别为-1.0±4.0和-1.0±4.6 mL·kg⁻¹·min⁻¹。
根据[公式：见正文]O₂与RPE≤15之间的个体关系，在健康参与者和COPD患者中可以以可接受的准确度预测[公式：见正文]O₂峰值。
