Fig. 1.
L–V relationships obtained from the data averaged across the subjects modeled by the different 2-point methods and their respective multiple-point methods using (A) the mean velocity, (B) mean propulsive velocity, and (C) peak velocity during the CMJ exercise. Mean values are shown for the 4 external loads (20 kg, 40 kg, 60 kg, and 80 kg) and load0.55, while the error bars represent the SD. Regression equations obtained from each individual method are also indicated (r, Pearson's correlation coefficient). Aline = area under the L−V relationship line; CMJ = countermovement jump; L0 = load-axis intercept; load0.55 = estimated load equivalent to 0.55 m/s; L−V relationship = load−velocity relationship; v0 = velocity-axis intercept.