Profile and physical response to ST-EX
| First ST-EX | Second ST-EX | Mean | |
|---|---|---|---|
| Duration of exercise (s) | 174.8±5.4 | 173.8±5.8 | 174.3±3.9 |
| Step rate (step/min) | 87.8±2.7 | 88.5±2.9 | 88.2±2.8 |
| Borg RPE scale | |||
| RPE-chest | 12.0±0.5 | 11.9±0.5 | 11.9±0.4 |
| RPE-legs | 12.9±0.3 | 12.6±0.4 | 12.8±0.2 |
| % HRmax | 77.8±2.0 | 77.9±2.1 | 77.9±1.4 |
| Lactate (mmol/L) | |||
| Pre-ST-EX | 1.6±0.1 | 2.0±0.1†† | 1.8±0.1 |
| Post-ST-EX | 4.2±0.3** | 4.3±0.3** | 4.2±0.2** |
Values are the mean±SE.
††p<0.01 versus pre-first ST-EX.
**p<0.01 versus corresponding pre-ST-EX. N=16.
% HRmax, percentage of age-predicted maximal heart rate; RPE, rating of perceived exertion; ST-EX, stair climbing–descending exercise.