Table 1.
Descriptive analysis of the included studies.
| Group | Sex | N | Age | Level | Weeks | Sessions per week | % 1RM | Number of exercises | Number of sets | Number of reps | SJ (cm) | CMJ (cm) | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pre | Post | Pre | Post | ||||||||||||
| Channell and Barfield, 2008 | SG | M | 11 | Adolescents | T | 8 | 3 | 60–100 | 3 | 4 | 11 | 57.5 ± 7.2 | 60.1 ± 3.9 | ||
| CG | M | 6 | Adolescents | T | 8 | 59.1 ± 9.1 | 57.4 ± 7.7 | ||||||||
| Chelly et al., 2009 | SG | M | 11 | Adolescents | T | 8 | 2 | 70–90 | 1 | 4 | 4 | 31.5 ± 4 | 34.6 ± 3 | 33.8 ± 4 | 36.3 ± 3 |
| CG | M | 11 | Adolescents | T | 8 | 30.8 ± 3.6 | 31.4 ± 3.5 | 33.8 ± 3.7 | 34.5 ± 4.2 | ||||||
| Christou et al., 2006 | SG | M | 9 | Adolescents | T | 8 | 2 | 55–80 | 10 | 3 | 12 | 24.9 ± 1.4 | 28.1 ± 1.4 | 29 ± 1.6 | 32.9 ± 1.4 |
| CG | M | 8 | Adolescents | T | 8 | 25 ± 2 | 26.5 ± 1.8 | 29 ± 2 | 30.6 ± 1.4 | ||||||
| Christou et al., 2006 | SG | M | 9 | Adolescents | T | 16 | 2 | 55–80 | 10 | 3 | 12 | 24.9 ± 1.4 | 32.4 ± 1.6 | 29 ± 1.6 | 35.7 ± 1.4 |
| CG | M | 8 | Adolescents | T | 16 | 25 ± 2 | 27 ± 2.1 | 29 ± 2 | 31.2 ± 1.5 | ||||||
| de Hoyo et al., 2016 | SG | M | 18 | Adolescents | T | 10 | 1–2 | 2 | 4 | 6 | 35.7 ± 4.1 | 38.3 ± 4.2 | |||
| CG | M | 15 | Adolescents | T | 10 | 1-2 | 36.8 ± 3.4 | 36.2 ± 3.2 | |||||||
| Enoksen et al., 2013 | SG | M | 9 | Adolescents | T | 10 | 2 | 70–95 | 3 | 3 | 7 | 33.7 ± 6.3 | 36.4 ± 6.0 | ||
| CG | M | 9 | Adolescents | T | 10 | 34.4 ± 3.4 | 36.3 ± 3.3 | ||||||||
| Faigenbaum et al., 2002 | SG | MF | 20 | Children | RT | 6 | 2 | 10–15 RM | 12 | 1 | 12 | 22.8 ± 3.9 | 24.9 ± 4.5 | ||
| CG | MF | 13 | Children | RT | 6 | 21.6 ± 2.5 | 22.3 ± 2.2 | ||||||||
| Gorostiaga et al., 1999 | SG | M | 9 | Adolescents | T | 6 | 2 | 40–90 | 5 | 4 | 32.2 ± 3.2 | 33.3 ±3.3 | 34.1 ± 3.1 | 35.2 ± 3.6 | |
| CG | M | 4 | Adolescents | T | 6 | 27 ± 4.0 | 28 ±3.2 | 32 ± 25.5 | 32.8 ± 24 | ||||||
| Granacher et al., 2011 | SG | MF | 17 | Children | T | 10 | 2 | 70–80 | 7 | 3 | 11 | 21.5 ± 2.6 | 22.2 ± 2.7 | ||
| CG | MF | 15 | Children | T | 10 | 20.8 ± 4.0 | 21.3 ± 4.6 | ||||||||
| Kotzamanidis et al., 2005 | SG | M | 11 | Adolescents | T | 9 | 2 | 8,6,3 RM | NR | 4 | 6 | 25.7 ± 3.1 | 26.1 ± 3.4 | 27.2 ± 3.4 | 27.4 ± 3.3 |
| CG | M | 12 | Adolescents | T | 25.8 ± 2.4 | 26.0 ± 2.5 | 28.3 ± 2.7 | 28.2 ± 2.8 | |||||||
| Lloyd et al., 2016 (Pre-PHV) | SG | M | 10 | Children | T | 6 | 2 | 10 RM | 4 | 3 | 10 | 22.3 ± 4.9 | 24.8 ± 4.6 | ||
| CG | M | 10 | Children | T | 23.4 ± 4.6 | 23.5 ± 4.2 | |||||||||
| Lloyd et al., 2016 (Post-PHV) | SG | M | 10 | Adolescents | T | 6 | 2 | 10 RM | 4 | 3 | 10 | 32.4 ± 5.0 | 34.6 ± 5.1 | ||
| CG | M | 10 | Adolescents | T | 34.2 ± 4.6 | 34.2 ± 4.6 | |||||||||
| Moraes et al., 2013 | SG | M | 14 | Adolescents | RT | 4 | 3 | 10–12 RM | 9 | 3 | 11 | 29.4 ± 6.0 | 30.1 ± 6.2 | ||
| CG | M | 10 | Adolescents | RT | 4 | 33.5 ± 12 | 33.3 ± 11.7 | ||||||||
| Moraes et al., 2013 | SG | M | 14 | Adolescents | RT | 8 | 3 | 10–12 RM | 9 | 3 | 11 | 29.4 ± 6.0 | 30.6 ± 5.6 | ||
| CG | M | 10 | Adolescents | RT | 8 | 33.5 ± 12 | 32.9 ± 11.5 | ||||||||
| Moraes et al., 2013 | SG | M | 14 | Adolescents | RT | 12 | 3 | 10–12 RM | 9 | 3 | 11 | 29.4 ± 6.0 | 30.8 ± 6.0 | ||
| CG | M | 10 | Adolescents | RT | 12 | 33.5 ± 12 | 33 ± 11.5 | ||||||||
| Ronnestad et al., 2008 | SG | M | 10 | Adolescents | T | 7 | 2 | 2 | 4 | 5 | 29 ± 0.9 | 31 ± 1.7 | 32.3 ± 0.8 | 33.9 ± 0.6 | |
| CG | M | 10 | Adolescents | T | 7 | 30.3 ± 1.2 | 29.2 ± 1.1 | 36 ± 0.9 | 35.7 ± 1.4 | ||||||
| Santos and Janeira, 2012 | SG | M | 15 | Adolescents | T | 10 | 3 | 10 RM | 6 | 3 | 11 | 24.8 ± 3.3 | 27.9 ± 4.0 | 33.3 ± 4.3 | 36.6 ± 4.2 |
| CG | M | 10 | Adolescents | T | 10 | 22.7 ± 4.3 | 20.7 ± 3.9 | 30.7 ± 5.1 | 28.4 ± 4.0 | ||||||
| Sarabia et al., 2015 | SG | M | 11 | Adolescents | T | 11 | 2 | 2 | 5 | 28.4 ± 3.6 | 31.1 ± 2.2 | 31.1 ± 3.5 | 32.4 ± 2.3 | ||
| CG | M | 9 | Adolescents | T | 11 | 31.7 ± 4.6 | 33.2 ± 3.5 | 33.8 ± 3.5 | 33.5 ± 4.4 | ||||||
| Weltman et al., 1986 | SG | M | 16 | Children | T | 14 | 3 | 10 | 21.1 ± 4.8 | 23.3 ± 3.4 | |||||
| CG | M | 10 | Children | T | 14 | 22.7 ± 3.9 | 22.0 ± 2.5 | ||||||||
CG, control group; PHV, peak height velocity; M, male; MF, male and female; NR, not reported: Reps, repetitions; SG, strength group; T, trained; RT, recreationally trained.