Table 2. Systematic review and characteristic of included studies. |
Study |
Population |
Plyometric training |
Outcomes (pre-post change) |
Sports level |
Age (mean ± SD in years) |
Gender |
Sample size (n) |
Duration (weeks) |
Days a week (duration of session) |
Type of exercises (jumps in total) |
CMJ (%) |
DJ (%) |
Muscle damage or muscle soreness |
Arazi et al., 2012 |
Semi-professional basketball players |
TP: 18.0 ± 1.4 RP#: 18.0 ± 0.6 C:20.4 ± 0.6 |
M |
TP: 6 RP#: 6 C: 6 |
8 |
3 (40 min) |
AJs, SJs, SDs (3564) |
TP: 29.3% ↑ RP#: 30.4% ↑ C: -1.1% |
|
|
Arazi et al., 2014 |
Healthy men, experienced in plyometrics |
TP: 20.5 ± 0.3 RP$: 20.7 ± 0.5 |
M |
TP: 7 RP$: 7 |
6 |
2 (35 min) |
DJs (1200) |
TP: 9.1% ↑ RP$: 8.6% ↑ |
|
|
Argus, 2011 |
Professional rugby players |
TP: 24 ± 2 RP‡: 23 ± 2 AP: 25 ± 2 |
M |
TP: 8 RP‡: 9 AP: 11 |
4 |
2 |
CMJs (144) |
TP: 1.1%**∆ RP‡: 3.7%**â–² AP: 6.2%**â–² |
|
|
Impellizzeri et al., 2008 |
Amateur soccer players |
25 ± 4 |
M |
TP: 18 RP$: 19 |
4 |
3 (15 min warm-up) |
VJs, BJs, BRJs, DJs (4500) |
TP: 14.6% ↑ RP$: 6.5% ↑ |
|
Likert scale (0-6max) TP>RP$ |
Jurado-Lavanant et al., 2015 |
Healthy and physically active men |
21.2 ± 2.9 |
M |
TP: 20 RP#: 20 C: 25 |
10 |
2 (35 min) |
VJs (6500) |
|
30 cm (box) TP: 7.3% ↑ RP#: 4.8% C: 2.4% 50 cm (box) TP: 13.4% ↑ RP#: 3.6% C: 1.6% |
CK TP>RP# |
Jurado-Lavanant et al., 2017 |
Physical education students |
TP: 20.8 ± 3.1 RP#: 21.8 ± 3.4 C: 20.1 ± 2.2 |
M |
TP: 20 RP#: 20 C: 25 |
10 |
2 (35 min) |
VJs (6500) |
TP: 13.1% ↑ RP#: 14.6% ↑ C: -0.3% |
|
|
Khlifa et al., 2010 |
Elite basketball players |
TP: 23.6 ± 0.3 RP^: 23.1 ± 0.3 C: 24.2 ± 0.2 |
M |
TP: 9 RP^: 9 C: 9 |
10 |
2-3 (90 min) |
VJs, BJs, BRJs, DJs (11930) |
TP: 7.0% ↑ RP^: 12.2% ↑ C: 1.8% |
|
|
Kibele et al., 2015 |
Physically active students |
TP: 24.1 ± 4.6 RP† : 24.1 ± 3.4 |
M |
TP: 13 RP† : 20 |
7 |
2 (40 min) |
CMJs, DJs, HJs (1050) |
TP: 5.3% RP† : 13.6% ↑ |
|
|
Kobak et al., 2015 |
Students |
22.5 ± 1.41 |
M: 21 F: 13 |
TP: 11 RP#: 12 C: 11 |
8 |
2 (60 min) |
DJs, SJs, CPs, LJs, TJs, DJs, SLJ (4196) |
TP: 10.7% RP#: 13.0% ↑ C: 8.9% |
|
|
Makaruk et al., 2010 |
Students experienced in drop jumps |
21.2 ± 1.3 |
M |
TP: 14 RP^: 14 C: 14 |
6 |
3 (40-45 min) |
DJs (660) |
TP&: 11.6% ↑ RP^&: 6.1% ↑ C: 2.0% |
30 cm (box) TP&: 8.7%↑£ RP^&: 2.0%£ C: 0.8% |
|
Makaruk et al., 2014 |
Collegiate basketball and volleyball players, track and field athletes |
TP: 21.7 ± 2.2 AP: 21.3 ± 1.9 C: 20.9 ± 1.8 |
M |
TP: 11 AP: 11 C: 11 |
5 |
3 |
DJs (588) |
|
30 cm (box) TP: 9.0% ↑ AP: 8.4% ↑ C: 0.8% 60 cm (box) TP: 6.0% ↑ AP: 8.5% ↑ C: -0.5% |
|
Markovic et al., 2011 |
Physical education students |
22 ± 3 |
M |
RPâ‘: 12 AP: 10 C: 10 |
7 |
3 |
CMJs (420) |
RPâ‘: 3.4% ↑ AP: 8.6% ↑ C: 0.6% |
|
|
Markovic et al., 2013 |
Physical education students |
23.7 ± 1.7 |
M |
TP: 12 RP^: 11 RP‡: 12 AP: 12 C: 13 |
8 |
3 |
CMJs (1404) |
TP: 11.6%↑ RP^: 7.5% ↑ RP‡: 7.2% ↑£ AP: 8.4% ↑ C: 1.0% |
|
|
(McClenton et al., 2008) |
Recreationally trained students |
TP: 21.3 ± 2.0 RP‡: 22.2 ± 2.5 C: 21.5 ± 1.7 |
M: 14 F: 7 |
TP: 11 RP‡: 10 C: 10 |
6 |
2 |
DJs, SJs, QQJs, CJs (274-278) |
TP: 10.5% ↑ RP‡: 5.3% C: 1.3% |
|
|
(Ploeg et al., 2010) |
Untrained individuals |
M: 21.8 ± 2.3 F: 22.4 ± 3.5 |
M: 16 F: 23 |
TP: 8 RP#: 10 C: 10 |
6 |
2 |
HPs, VJs, STLJs, HJs, SLJs, BJs, TJs, JBs (1460) |
TP: -2.6% RP#: 0.7% C: 5.9% |
|
|
(Robinson et al., 2004) |
Physically active women |
TP: 20.6 ± 0.6 RP#: 19.8 ± 0.3 |
F |
TP: 15 RP#: 16 |
8 |
3 (65 min) |
BJs, HPs, Js (3–5 sets of 10–20 reps of 10 drills per training) |
TP: 32.5% ↑ RP#: 33.5% ↑ |
|
Muscle soreness TP>RP# |
(Stemm and Jacobson, 2007) |
Physically active men |
24 ± 2.5 |
M |
TP: 8 RP#: 7 C: 9 |
6 |
2 |
SJs, HJ, TJs (1620) |
TP: 7.8% ↑ RP#: 6.5% ↑ C: 1.5% |
|
|
|
AP-assisted plyometrics, RP-resisted plyometrics, TP-traditional plyometrics, C-control group (without intervention), |
‡- resistance of the elastic cords, |
† -unstable surface, BJs-bounds, BRJs-broad jumps, CJs-contrast jumps, CMJs-countermovement jumps, CPs- calf pops, DJs- drop or depth jumps, HJs-hurdle jumps, HPs-hops, JBs-jumps to box, Js-jumps, LJs-lunge jumps, QQJs- quarter quick jumps, Sds- skipping drills, SJs-squat jumps, SLJs-single leg jumps, STLJs-standing long jumps, TJs-tuck jumps, VJs-vertical jumps. |
**-lack of data regarding significance, |
£-form of resisted plyometrics included in meta-analysis, |
↑-indicates significant increase, |
|