Impact of Oral Ubiquinol on Blood Oxidative Stress and Exercise Performance

Table 4

Oxidative stress and blood lactate of exercise-trained men and women before (pre) and after (post) treadmill and cycle exercise, following treatment with CoQ10 or placebo.

Time	Malondialdehyde; (μmol·L^−1)	Hydrogen Peroxide; (μmol·L^−1)	Lactate*; (mmol·L^−1)
Treadmill (before) CoQ10	0.89±0.11	3.23±0.32	1.25±0.56
Treadmill (after) CoQ10	0.93±0.11	4.61±0.53	8.83±0.58
Treadmill (before) Placebo	0.89±0.12	3.36±0.34	1.33±0.56
Treadmill (after) Placebo	1.05±0.10	4.14±0.49	8.36±0.53
Cycle (before) CoQ10	0.81±0.10	3.54±0.53	1.12±0.53
Cycle (after) CoQ10	0.98±0.10	3.86±0.52	10.36±0.51
Cycle (before) Placebo	0.92±0.10	3.58±0.59	1.18±0.57
Cycle (after) Placebo	1.08±0.10	4.10±0.59	10.06±0.57

Values are mean ± SEM.
Treadmill:
No condition (𝑃=0.95), time (𝑃=0.11), or condition × time (𝑃=0.23) effect for MDA.
No condition (𝑃=0.41), time (𝑃=0.06), or condition × time (𝑃=0.94) effect for H₂O₂.
No condition (𝑃=0.75) or condition × time (𝑃=0.61) effect for lactate; ∗Time effect (𝑃<0.0001) for lactate.
Cycle:
No condition (𝑃=0.30), time (𝑃=0.09), or condition × time (𝑃=0.94) effect for MDA.
No condition (𝑃=0.82), time (𝑃=0.47), or condition × time (𝑃=0.87) effect for H₂O₂.
No condition (𝑃=0.84) or condition × time (𝑃=0.73) effect for lactate; Time effect (𝑃<0.0001) for lactate.