Table 3 Summary of meta-analyses of interval group versus control group.

From: Effects of plyometrics training on lower limb strength, power, agility, and body composition in athletically trained adults: systematic review and meta-analysis

Outcome

N

Mean difference (95% of CI)

p

I2 (p)

Strength indicators

 1RM

188

0.53 (0.23, 0.84)

0.0006

5% (0.39)

 ISO-H

125

0.53 (− 0.03, 1.08)

0.06

54% (0.07)

 ISO-Q

113

0.29 (− 0.46, 1.05)

0.44

72% (0.007)

Speed indicators

 5 m

191

− 0.29 (− 0.58, 0.00)

0.05

0% (0.49)

 10 m

406

− 0.50 (− 0.86, − 0.14)

0.06

66% (< 0.0001)

 15 m

103

− 0.46 (− 1.16, 0.24)

0.20

65% (0.02)

 20 m

342

− 0.53 (− 0.90, − 0.17)

0.004

62% (0.0009)

 30 m

355

− 0.57 (− 0.93, − 0.20)

0.003

63% (0.0007)

Lower limb explosive power

 CMJ

1006

0.69 (0.48, 0.89)

< 0.00001

57% (< 0.00001)

 SJ

628

0.47 (0.22, 0.71)

0.0002

52% (0.001)

 CMJ-A

279

0.83 (0.50, 1.15)

< 0.00001

37% (0.10)

 CMJ-POWER

189

0.24 (− 0.07, 0.55)

0.14

12% (0.34)

 SJ-POWER

131

0.13 (− 0.30, 0.55)

0.57

32% (0.19)

 RSI

184

0.80 (0.49, 1.10)

< 0.00001

0% (0.51)

 SLJ

372

1.34 (0.79, 1.90)

< 0.00001

81% (< 0.00001)

Maximal oxygen uptake

 VO2max

152

0.14 (− 0.30, 0.58)

0.53

42% (0.10)

Agility indicators

 T-test

336

− 0.41 (− 0.76, − 0.07)

0.02

58% (0.003)

 Illinois-test

165

− 0.64 (− 1.18, − 0.10)

0.02

62% (0.02)

  1. 1RM, Maximum squat strength test; ISO-H/Q, Isometric strength tests in hamstring or quadriceps; CMJ, Counter movement jump; SJ, Squat jump; CMJ-A, Counter movement jump with arm; RSI, Reactive strength index; SLJ, Standing long jump.
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