Coefficients of variation (CV) of VO₂ (A), VCO₂ (B), RER (C), and mean of the coefficients of variation (Mean CVs) (D).

The dotted line represents the accepted variation limit for each variable, 10% for VO2 and VCO2, and 5% for RER. Black columns represent the short Time Interval (TI) methods; Dark grey columns represent the long TI methods; Light grey columns represent the Steady-State (SSt) methods; White columns represent the Filtering methods. P-values come from the One-Way repeated measures analysis of variance. Data are presented as mean ± standard deviation (SD). Effect size: S—Small, M—Medium, L—Large. Min—minutes; VO2—volume of oxygen consumption; VCO2—volume of carbon dioxide production; RER—respiratory exchange ratio.