Table 2.
Strength abilities of 13-year-old girls selected for the Lower Silesian Regional Volleyball Team with correlation coefficients with the serve reception.
| Variable | Mean ± SD | Confidence interval | Serve reception | ||
|---|---|---|---|---|---|
| -1.96 SD | 1.96 SD | ||||
| Handgrip strength (kG) | R | 27.3 ± 3.1 | 25.3 | 29.3 | 0.34 |
| L | 27.6 ± 3.4 | 25.4 | 29.7 | 0.64∗∗ | |
|
| |||||
| Isometric peak torque at a specific angle (Nm) | L 65° | 19.6 ± 6.0 | 15.8 | 23.4 | 0.4 |
| L 35° | 19.7 ± 5.1 | 16.5 | 22.9 | 0.57∗ | |
| L 10° | 19.6 ± 5.1 | 16.3 | 22.8 | 0.57∗ | |
| R 65° | 22.7 ± 5.9 | 18.9 | 26.4 | 0.67∗∗ | |
| R 35° | 23.0 ± 5.4 | 16.5 | 22.9 | 0.54∗ | |
| R 10° | 21.8 ± 5.5 | 16.3 | 22.8 | 0.54∗ | |
|
| |||||
| Isokinetic peak torque of IR at a specified angular velocity (Nm) | L 60°/s | 19.9 ± 3.8 | 17.5 | 22.3 | 0.34 |
| L 180°/s | 19.8 ± 3.7 | 17.4 | 22.1 | 0.53∗ | |
| L 300°/s | 23.1 ± 5.3 | 19.7 | 26.5 | 0.54∗ | |
| R 60°/s | 20.1 ± 4.7 | 17.2 | 23.1 | 0.71∗∗ | |
| R 180°/s | 18.6 ± 4.4 | 15.8 | 21.4 | 0.72∗∗ | |
| R 300°/s | 22.7 ± 5.1 | 19.4 | 25.9 | 0.70∗∗ | |
|
| |||||
| Simple field tests (ICSPFT) | Distance the medicine ball was thrown (m) | 8.0 ± 1.3 | 7.2 | 8.8 | 0.59∗∗ |
| Bent-arm hang time (s) | 29.7 ± 6.9 | 25.3 | 34.1 | -0.50∗ | |
| Standing long jump (cm) | 193 ± 9 | 187 | 199 | -0.29 | |
|
| |||||
| Jump tests | SPJ reach height (cm) | 270 ± 12 | 262 | 278 | 0.08 |
| CMJ height (cm) | 30.5 ± 5.2 | 27.6 | 33.8 | -0.05 | |
| CMJ peak power (W/kg) | 44.5 ± 6.2 | 41.1 | 48.4 | -0.21 | |
R: right side; L: left side; ICSPFT: International Committee on the Standardization of Physical Fitness Test; ∗significant at p < 0.1; ∗∗significant at p < 0.05.