Table 5.
Pretesting, M (SD) | Posttesting, M (SD) | p values | Effect sizes | |
---|---|---|---|---|
Maximum voluntary isometric contraction | ||||
Peak force (N) | 2964.1 (667.3) | 2940.3 (605.2) | — | — |
Peak RFD (N/ms) | 23.4 (6.8) | 16.4 (7.1) | — | — |
RFD during 0-100 ms (N/ms) | 13.2 (2.9) | 9.6 (4.8) | — | — |
RFD during 0-200 ms (N/ms) | 10.1 (2.1) | 8.8 (3.0) | — | — |
Squat and countermovement jumps | ||||
Peak power of SJ (W) | 3778.1 (539.3) | 3905.5 (541.1) | .372 | 0.2 |
Peak power of SJ (W/kg) | 37.6 (3.6) | 39.9 (4.4) | .085 | 0.6 |
Peak velocity of SJ (m/s) | 2.11 (0.3) | 2.28 (0.3) | .063 | 0.6 |
Height of SJ (cm) | 18.4 (2.6) | 20.2 (2.7) | .057 | 0.7 |
Peak power of CMJ (W) | 3883.3 (566.7) | 4080.7 (585.9) | .124 | 0.3 |
Peak power of CMJ (W/kg) | 38.3 (4.1) | 40.5 (4.9) | .087 | 0.5 |
Peak velocity of CMJ (m/s) | 2.31 (0.3) | 2.46 (0.4) | .081 | 0.4 |
Height of CMJ (cm) | 19.3 (2.7) | 20.7 (3.1) | .079 | 0.5 |
Drop jump | ||||
Height of jump (cm) | 21.9 (2.5) | 21.7 (2.5) | — | — |
Reactive strength index (1) | 0.83 (0.15) | 0.83 (0.16) | — | — |
Note. RFD = rate of force development; CMJ = countermovement jump; SJ = squat jump.