Table 2.
Indirect Measures of Exercise Intensity Across Level of Exercise Intensity
| Rest | Low | Moderate | High | p value | Differences | |
|---|---|---|---|---|---|---|
| Heart rate (bpm) | 72 ± 15 | 95 ± 21 | 119 ± 23 | 152 ± 25 | <0.01 | L<M<H |
| Predicted HR max (%) | 40.0 ± 7.7 | 53 ± 11 | 67 ± 13 | 85 ± 15 | <0.01 | L<M<H |
| NetVO2 (mL/kg/min) | — | 7.0 ± 2.2 | 12.0 ± 3.2 | 16.0 ± 4.9 | <0.01 | L<M<H |
| Percentage peak VO2 (%) | 18.0 ± 5.0 | 53 ± 10 | 79 ± 12 | 96.0 ± 7.2 | <0.01 | L<M<H |
| RPE (a.u.) | — | 9.3 ± 2.5 | 12.0 ± 1.9 | 16.0 ± 1.8 | <0.01 | L<M<H |
| Blood lactate (mM) | 1.4 ± 0.5 | 1.6 ± 0.6 | 2.3 ± 1.1 | 3.4 ± 0.9 | <0.01 | L<M<H |
Comparisons made only between levels of intensity, not resting values. Resting values included for reference. Values are represented as means ± standard deviation.
HR, heart rate; max, maximum; VO2, oxygen consumption; RPE, rating of perceived exertion; a.u., arbitrary units.