(G) Respiratory control ratio (RCR) was calculated as maximal oxygen consumption rate (OCR)/H+ leak OCR (n= 3 independent experiments). Data are presented as mean ± SEM (H) Spare respiratory capacity was calculated as maximal OCR- basal OCR (n= 3 independent experiments). Data are presented as mean ± SEM. Data information: *p<0.05, one-way ANOVA followed by Tukey's post hoc test. 