Figure 1.

Protein content of proteins relating to mitochondrial function in response to 7 days step reduction in young males. OXPHOS CI, OXPHOS CII, OXPHOS CIII, OXPHOS CIV, OXPHOS CV, total OXPHOS protein content (n = 11), and citrate synthase protein content (n = 11; A), Western blot representative image (B), citrate synthase activity assay (n = 11; C and D). Data are presented as means ± SE and were analyzed using a repeated measures t test. *Post-SR was significantly different from pre-SR at the P < 0.05 level. CS, citrate synthase; n, number of subjects; OXPHOS, oxidative phosphorylation; SR, step reduction.