Table 2.
Differences in countermovement vertical jumps (CMVJs) for different additional loads. Time variables, men, n = 18
| Additional load (%BW) | Variable | Mean | SD | Significance of differences
|
||
|---|---|---|---|---|---|---|
| Additional load (%BW) | ||||||
| 0 | 10 | 20 | ||||
| 0 | tP (s) | 0.478 | 0.124 | |||
| 10 | 0.497 | 0.135 | – | |||
| 20 | 0.461 | 0.116 | – | – | ||
| 30 | 0.468 | 0.112 | – | – | – | |
|
| ||||||
| 0 | tB (s) | 0.216 | 0.053 | |||
| 10 | 0.243 | 0.063 | – | |||
| 20 | 0.246 | 0.068 | – | – | ||
| 30 | 0.256 | 0.096 | – | – | – | |
|
| ||||||
| 0 | tA (s) | 0.286 | 0.072 | |||
| 10 | 0.303 | 0.071 | – | |||
| 20 | 0.315 | 0.068 | ** | – | ||
| 30 | 0.328 | 0.083 | ** | * | – | |
|
| ||||||
| 0 | tT (s) | 0.980 | 0.191 | |||
| 10 | 1.043 | 0.175 | – | |||
| 20 | 1.022 | 0.182 | – | – | ||
| 30 | 1.052 | 0.213 | – | – | – | |
tP – duration of the preparatory phase, tB – duration of the braking phase, tA – duration of the acceleration phase, tT – total duration of the jump
*
p < 0.05,
**
p < 0.01.