Table 5: Summary of vertical GRF during foot landing.
| Climbing Mode | Climbing Style | Stairs (#) | Average | SD |
| Ascent | Walking | 1 | 1.02 | 0.05 |
| 2 | 0.98 | 0.09 | ||
| 3 | 0.99 | 0.10 | ||
| Running | 1 | 1.25 | 0.10 | |
| 2 | 1.21 | 0.20 | ||
| 3 | 1.28 | 0.09 | ||
| Descent | Walking | 1 | 1.28 | 0.17 |
| 2 | 1.25 | 0.11 | ||
| 3 | 1.27 | 0.30 | ||
| Running | 1 | 1.52 | 0.18 | |
| 2 | 1.50 | 0.14 | ||
| 3 | 1.60 | 0.18 |