Table 2.
Comparison mean (±SD) of GRF, loading rate, knee extension moment, and proximal tibia anterior shear force lower extremity during landing between hop-jump and step-close-jump tasks.
| Hop-jump | Step-close-jump | |
|---|---|---|
| Peak posterior GRF during landing (BW) | -1.26 (.08) | -.71 (.15) *** |
| Peak vertical GRF during landing (BW) | 1.85 (.23) | 1.83 (.17) |
| Time at which peak vertical GRF occurred following initial foot contact the with ground (sec) |
.07 (.03) | .10 (.03) * |
| Peak vertical loading rate (BW/sec) | 38.3 (25.0) | 19.1 (6.0) * |
| Peak knee extension moment during landing (Nm/BW) | .56 (.10) | .51 (.23) |
* denote p < 0.05 respectively
*** denote p < 0.001 respectively