Table 3: Vertical ground reaction forces at the walk-to-run transition speed, during marching and running, for three parts of the sole of the boot.
Participants (n = 12) |
Average |
Min-max |
SD |
vGRF on the forefoot while marching (N) |
978.2 |
840-1099 |
85.9 |
vGRF on the forefoot while running (N) |
1005.4 |
665-1144 |
176.2 |
vGRF on the midfoot while marching (N) |
427.9 |
349-591 |
101.3 |
vGRF on the midfoot while running (N) |
507.3 |
228-841 |
174.4 |
vGRF on the heel while marching (N) |
849.8* |
757-1057 |
98.1 |
vGRF on the heel while running (N) |
619.2* |
288-768 |
138.1 |
Note: * the mean forces on the heel are significantly lower while running than while marching.
*p = 0.00; a significant difference between factors indicated.
n: number; Min: Minimum; Max: maximum; SD: standard deviation; vGRF: vertical Ground Reaction Forces; N: Newton