Manipulating graded exercise test variables affects the validity of the lactate threshold and - Fig 5

<p>(A-D) Bland-Altman plots displaying agreement between measures of the power associated with the (A) OBLA 2.5 mmol^.L^-1, (B) Modified D_max, (C) Log-Poly-Modified D_max, (D) Log-Exp-Modified D_max calculated from <b>GXT</b>_<b>4</b> and the MLSS. The differences between measures (y-axis) are plotted as a function of the mean of the two measures (x-axis) in power (Watts). The horizontal solid line represents the mean difference between the two measures (i.e., bias). The two horizontal dashed lines represent the limits of agreement (1.96 x standard deviation of the mean difference between the lactate threshold and the maximal lactate steady state). The dotted diagonal lines represent the boundaries of the 95% CI for MLSS reliability (CV = 3.0%; 95%; CI = 3.8%) calculated from Hauser et al., 2014) (log = Modified D_max method using the log-log method as the point of the initial lactate point; poly = Modified D_max method calculated using a third order polynomial regression equation; exp = Modified D_max method calculated using a constant plus exponential regression equation; OBLA = onset of blood lactate accumulation.).