The Effects of Loaded Plyometrics and Short Sprints in U19 Male Soccer Players in Tunisia

OBJECTIVES This study purposed to investigate the effects of an 8-week intervention of loaded plyometric training on physical fitness, lower limb isokinetic muscle function, and dynamic balance in healthy adults.METHODS The participants were 12 undergraduate students at K University in Chungcheong-do, South Korea, who had no experience of injury in the past year and who showed ≥250 peak torque/body weight(%) in the test of lower limb isokinetic muscle function. At pre-test and post-test, an identical set of tests was conducted to assess the physical fitness, lower limb isokinetic muscle function, and dynamic balance.RESULTS After exercise intervention, Loaded plyometric training group(LPTG) had significant differences in sit-ups, standing long jump, T agility test, extensor muscle strength-right(EMS-R), flexor muscle strengthright( FMS-R), extensor muscle power-left(EMP-L), flexor muscle power-left(FMP-L), flexor muscle powerright( FMP-R) and anterior-left(AN-L). Unloaded plyometric training gruop(UPTG) had significant differences in standing long jump, T agility test, EMS-R, EMP-L, and posterolateral-right(PL-R). Between the two groups, there were significant differences in standing long jump, extensor muscle strength-left(EMS-L), and EMP-L.CONCLUSIONS Thus, compared to the UPTG, the LPTG has been shown to exert a stronger effect on thestanding long jump, muscle strength, and muscle power, and it is predicted to be a more effective methodof exercise.

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The Effect of Combined Strength, Plyometric, and Sprint Training on Repeated Sprint Ability in Team-Sport Athletes: A Systematic Review and Meta-Analysis

Liu,

Li,

Zheng

et al. 2024

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Repeated sprint ability (RSA) is crucial for success in team sports, and involves both neuromuscular and metabolic factors. While single-mode training (SGL; e.g., sprint training) and combined training (CT; e.g., sprint + plyometric) can improve RSA, whether CT offers additional benefits compared to SGL or active controls maintaining routine training (CON) remains uncertain in team-sport athletes. This study evaluates the effect of CT versus SGL and CON on the RSA of team-sport athletes. A comprehensive search was conducted in five electronic databases. Thirteen studies involving 394 males and 28 females, aged 14 to 26 years, were included. The random effects model for meta-analyses revealed greater improvement in RSA mean after CT compared to SGL (Hedge's g effect size [g] = -0.46; 95 % confidence interval [CI]: -0.82, -0.10; p < 0.01) and CON (g = -1.39; 95% CI: -2.09, -0.70; p < 0.01). CT also improved RSA best compared to CON (g = -1.17; 95% CI: -1.58, -0.76; p < 0.01). The GRADE analyses revealed low- to very-low certainty of evidence in all meta-analyses. Subgroup analysis revealed that plyometric + sprint training yielded greater RSA mean (g = -1.46) and RSA best (g = -1.35) improvement than plyometric + resistance + sprint training and resistance + sprint training. The effects of CT on RSA did not differ according to age (≥ 18 vs. < 18), sports (e.g., soccer vs. basketball vs. handball), or RSA test type (linear sprint vs. sprint with change-of-direction). Studies showed an overall high risk of bias (ROB 2). In conclusion, CT may be improving team-sport athletes' RSA more effectively than SGL (small effect size) and CON (large effect size), particularly when CT involves plyometric + sprint training.

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The Effects of Loaded Plyometrics and Short Sprints in U19 Male Soccer Players in Tunisia

Cited by 3 publications

References 72 publications

The effect of plyometric training on the explosive force of lower limb of football players: a meta analysis

The effect of plyometric training on the explosive force of lower limb of football players: a meta analysis

Effect of Loaded Plyometric Training on Physical Fitness, Lower Extremity Isokinetic Muscle Function and Dynamic Balance

The Effect of Combined Strength, Plyometric, and Sprint Training on Repeated Sprint Ability in Team-Sport Athletes: A Systematic Review and Meta-Analysis

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