Fig. 3
Means ± SDs relevant to the changes in V̇O2 (ΔV̇O2) max at week 4 and week 12 separately for EC and HTP users, in Quitters only. P values were computed by means of one-way ANOVA. MCID; the minimum clinically important difference is defined as an improvement in anaerobic threshold of at least 2 ml O2/kg/min.
