Physical characteristics of subjects (n=12)
| Characteristic | Sample mean (SD) | Range |
|---|---|---|
| V̇o2, Oxygen uptake; HRmax, maximum heart rate. | ||
| Age (years) | 68.0 (7.1) | 54–78 |
| Body mass (kg) | 69.1 (14.1) | 53–101 |
| Peak V̇o2 (ml/kg/min) | 29.6 (7.0) | 19–45 |
| HRmax (beats/min) | 173.7 (18.8) | 136–210 |