Table 1.
Comparison mean (±SD) of jumping height, and lower extremity kinematics between hop-jump and step-close-jump tasks.
| Hop-jump | Step-close-jump | |
|---|---|---|
| Jumping height (m) | .32 (.04) | .32 (.04) |
| Hip angle at initial foot contact with ground (deg) | 108.9 (3.9) | 117.9 (6.2) *** |
| Knee angle at initial foot contact with ground (deg) | 144.9 (6.7) | 156.8 (3.7) *** |
| Hip angular displacement during landing (deg) | 7.5 (6.7) | 20.7 (5.8) *** |
| Knee angular displacement during landing (deg) | 50.1 (8.2) | 64.5 (8.5) *** |
| Hip angular velocity at initial foot contact with ground (deg/sec) | -2.08 (1.52) | -4.53 (2.61) ** |
| Knee angular velocity at initial foot contact with ground (deg/sec) | -5.77 (. 94) | -5.07 (1.47) |
** denote p < 0.01 respectively
***denote p < 0.001 respectively