Table 3.
The effect of exercise intensity and volume on plasma postprandial oxidative stress.
| Rest Day | Exercise Day | ||||||
|---|---|---|---|---|---|---|---|
| Baseline | 3 h postprandial | Change on rest day (Cohens d) | Baseline | 3 h postprandial | Change on exercise day (Cohens d) | Change between exercise and rest day (Cohens d) | |
| HYDROGEN PEROXIDE (nmol.ml−1) | |||||||
| LV-HIIE | 4.5 ± 0.8 | 5.6 ± 1.0* | 1.1 ± 0.5 (0.37) | 4.4 ± 0.7 | 7.9 ± 1.5*† | 3.4 ± 1.3 (1.46) | 2.3 ± 1.1# (1.44) |
| CMIE | 5.4 ± 0.8 | 6.8 ± 1.0* | 1.4 ± 0.4 (0.46) | 4.9 ± 0.5 | 5.7 ± 0.7 | 0.8 ± 0.6 (0.34) | −0.6 ± 0.4 (−0.36) |
| TBARS (MDA μM) | |||||||
| LV-HIIE | 3.2 ± 0.2 | 4.0 ± 0.3 | 0.8 ± 0.3 (0.68) | 3.5 ± 0.2 | 5.1 ± 0.5*#† | 1.6 ± 0.6 (1.30) | 0.8 ± 0.8# (0.52) |
| CMIE | 4.1 ± 0.4 | 4.6 ± 0.4 | 0.5 ± 0.5 (0.44) | 4.1 ± 0.4 | 3.4 ± 0.1† | −0.7 ± 0.4 (−0.53) | −1.2 ± 0.5 (−0.77) |
| CATALASE (U.ml−1) | |||||||
| LV-HIIE | 32.6 ± 2.4 | 42.9 ± 5.9* | 10.3 ± 5.1 (1.24) | 32.8 ± 3.3 | 57 ± 9.8* | 24.2 ± 8.3 (2.25) | 13.9 ± 8.4 (0.73) |
| CMIE | 25.2 ± 1.6 | 39.2 ± 6.0* | 14.0 ± 5.2 (1.69) | 25.1 ± 1.9 | 34.6 ± 3.8* | 9.5 ± 3.9 (0.88) | −4.5 ± 6.0 (−0.24) |
| SOD (U.ml−1) | |||||||
| LV-HIIE | 4.1 ± 0.3 | 4.5 ± 0.3* | 0.4 ± 0.1 (0.44) | 4.1 ± 0.3 | 4.7 ± 0.4* | 0.7 ± 0.3 (0.69) | 0.2 ± 0.2# (0.50) |
| CMIE | 3.9 ± 0.3 | 4.6 ± 0.3* | 0.7 ± 0.1 (0.76) | 3.9 ± 0.2 | 4.2 ± 0.3† | 0.4 ± 0.2 (0.39) | −0.3 ± 0.2 (−0.68) |
Values are mean ± SEM. LV-HIIE, low-volume high-intensity interval exercise; CMIE, continuous moderate-intensity exercise; SOD, superoxide dismutase; TBARS, thiobarbituric acid reactive substances;
*
p < 0.05 compared to baseline;
†
p < 0.05 compared to rest day;
#
p < 0.05 compared to CMIE; symbols in parenthesis indicate p < 0.1.