Figure 3. Protein content of COX subunit II (middle panel) and IV (bottom panel) measured in resting muscle biopsy samples obtained before (PRE) and after (POST) 6 sessions of sprint interval training (SIT) or endurance training (ET) over 2 weeks.

*P ≤ 0.05 versus pre-training (main effect for time). A representative Western blot (top panel) based on one subject from each group is also presented for each subunit. Lines denote individual data for 8 subjects in each group.