Table 3. Synthesized results of plyometric jump training effects on handball players' fitness attributes. |
| Fitness attribute |
na |
ES (95%CI) |
p |
I2
(%) |
Egger’s
test (p) |
RW (%) |
| Jumping
variables |
| Countermovement
jump with arms height |
5, 5, 5,
157 |
1.84 (1.07
to 2.62) |
< 0.001 |
77 |
0.193 |
19.2–21.1 |
| Countermovement
jump height |
15, 15,
15, 421 |
1.33 (0.83
to 1.83) |
< 0.001 |
78.5 |
0.004b |
5.1–7.4 |
| Squat
jump height |
14, 14,
14, 400 |
1.17 (0.79
to 1.55) |
< 0.001 |
66.5 |
0.061 |
5.8–8.2 |
| Horizontal
jump distance |
8, 8, 8,
239 |
0.83 (0.50
to 1.15) |
< 0.001 |
23.8 |
0.363 |
9.3–15 |
| Sprint
variables |
| ≤
10-m linear sprint time |
16, 16,
9, 470 |
-1.12 (-1.41
to -0.83) |
< 0.001 |
52 |
0.012b |
5.2–7.8 |
| >
10-m linear sprint time |
16, 16,
12, 523 |
-1.46 (-1.99
to -0.94) |
< 0.001 |
80.1 |
0.001b |
4.6–6.3 |
| Repeated
sprint ability with change-of-direction time |
10, 10,
10, 278 |
-1.53 (-2.22
to -0.84) |
< 0.001 |
82.7 |
0.004b |
9.4–10.6 |
| Balance
variables |
| Dynamic
balance |
5, 5, 5,
149 |
0.04 (-0.28
to 0.37) |
0.790 |
0 |
0.419 |
13.4–27.6 |
| Static
balance |
6, 6, 6,
177 |
-0.24 (-0.53
to 0.06) |
0.123 |
11 |
0.710 |
11.4–23.4 |
| Agility
variables |
| Agility
test time |
18, 18,
12, 523 |
-1.60 (-1.90
to -1.29) |
< 0.001 |
67.7 |
0.016b |
5.2–7.1 |
| Strength
variables |
| Maximal
strength |
4, 4, 4,
119 |
0.52 (0.08
to 0.95) |
0.020 |
27.0 |
0.001b |
24.6–25.5 |
| Force–velocity
test (muscle power) |
5, 5, 5,
139 |
1.13 (0.76
to 1.49) |
< 0.001 |
0 |
0.831 |
16.8–22.8 |
|
a n indicates the number of experimental groups, the number of control groups, the number of studies providing data and the total number of participants in the analysis. |
b The significance remained the same after the trim and fill method, suggesting that publication bias did not significantly impact the effect sizes. |
|