Table 2.
Important calculations for average power (Pavg), peak power (Ppeak), peak ground reaction force (GRFpeak), center of mass peak velocity (Vpeak), and force-velocity ratio (SFv) are presented for different groups at various knee starting angles (mean ± SD) (n = 13).
| Parameter | Condition | Knee starting angle (deg) | |||
|---|---|---|---|---|---|
| 60° | 90° | 120° | Condition | ||
|
Pavg
(W·kg-1) |
CG | 12.73 ± 1.33 | 19.13 ± 5.01‡ | 25.21 ± 3.67‡ | CG |
| SDG | 14.21 ± 3.21[0.6] | 20.65 ± 4.88‡[0.31] | 25.6 ± 3.68‡[0.11] | SDG | |
| StSG | 14.24 ± 3.48[0.57] | 18.26 ± 5.78‡[0.16] | 24.89 ± 3.24‡[0.09] | StSG | |
|
Ppeak
(W·kg-1) |
CG | 37.33 ± 5.34 | 46.38 ± 8.23‡ | 53.42 ± 7.05‡ | CG |
| SDG | 39.14 ± 5.97[0.32] | 47.76 ± 7.14‡[0.18] | 52.9 ± 6.2‡[0.08] | SDG | |
| StSG | 38.36 ± 7.64[0.16] | 45.33 ± 8.98‡[0.12] | 53.13 ± 6.39‡[0.04] | StSG | |
|
GRFpeak
(N·kg-1) |
CG | 21.04 ± 1.84 | 24.38 ± 2.2‡ | 30.92 ± 2.81‡ | CG |
| SDG | 21.66 ± 2.15[0.31] | 25.17 ± 2.7‡[0.32] | 30.59 ± 2.78‡[0.12] | SDG | |
| StSG | 20.87 ± 1.75[0.1] | 23.16 ± 2.02‡[0.58] | 28.58 ± 2.63*†‡[0.86] | StSG | |
|
Vpeak
(m·kg-1·s-1) |
CG | 0.036 ± 0.004 | 0.036 ± 0.004 | 0.034 ± 0.004‡ | CG |
| SDG | 0.037 ± 0.004[0.18] | 0.037 ± 0.004[0.08] | 0.034 ± 0.004‡[0.05] | SDG | |
| StSG | 0.038 ± 0.005[0.27] | 0.037 ± 0.005[0.22] | 0.036 ± 0.005*†[0.5] | StSG | |
|
SFv
(N·s·kg-1·m-1) |
CG | 10.27 ± 0.67 | 11.32 ± 1.16 | 15.49 ± 2.35 | CG |
| SDG | 10.4 ± 0.85[0.17] | 11.53 ± 1.34[0.17] | 14.93 ± 1.97[0.26] | SDG | |
| StSG | 9.91 ± 1.03[0.41] | 10.58 ± 0.83[0.73] | 13.26 ± 1.54*†[1.12] | StSG | |
The effect sizes of the intervention and control groups are reported in square brackets.
*: A significantly (P < 0.05) different from the CG.
†: A significantly (P < 0.05) different from the SDG.
‡: A significantly (P < 0.05) different from the 60°.
CG: Control Group, StSG: Static Stretching Group, SDG: Static Stretching and Drop Jump Combined Group