Strength training effects on physical performance and serum hormones in young soccer players

The purposes of this study were to investigate effects of partial block periodized strength training on physical performance and to examine relationships between initial muscle strength measured with isometric mid-thigh pull (IMTP) and performance changes after 7 weeks of strength training. Seventeen collegiate male soccer players participated. Initial muscle strength was determined using IMTP while physical performance included 10 m and 20 m sprints and static vertical jump with a polyvinyl chloride pipe (SJ0), 20 kg barbell (SJ20), and barbell loaded to 40 kg bar (SJ40). Performance testing was performed at three points: before first week (baseline), fourth week (T1), and seventh week (T2). Statistically small to moderate changes were found from baseline to T2 in peak power (PP; p < 0.001, ES = 0.49), net impulse (NI; p < 0.001, ES = 0.49), peak velocity (PV; p < 0.001, ES = 0.62), allometrically scaled PP (PPa; p < 0.001, ES = 0.62) in SJ20 and jump height (JH) in SJ40 (p < 0.001, ES = 0.36). Moderate to large correlations were found between isometric peak force and the changes from baseline to T2 in SJ20 PP (p = 0.04, r = −0.49), SJ20 PF (p = 0.03, r = −0.52), PPa (p = 0.04, r = −0.50), and SJ20 allometrically scaled peak force (p = 0.04, r = −0.49). Properly structured strength training maximizes task-specific physical performance. Initial muscle strength negatively affects the magnitudes of adaptations to physical performance.

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STRENGTH TRAINING EFFECTS ON PHYSICAL CONDITIONING AND INSTEP KICK KINEMATICS IN YOUNG AMATEUR SOCCER PLAYERS DURING PRESEASON

Perceptual and Motor Skills ◽

10.2466/pms.99.6.701-710 ◽

2004 ◽

Vol 99 (6) ◽

pp. 701 ◽

Cited By ~ 16

Author(s):

EVAGELOS MANOLOPOULOS

Keyword(s):

Strength Training ◽

Soccer Players ◽

Physical Conditioning ◽

Training Effects ◽

Instep Kick

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Effects of 6 Weeks Resistance Training Combined With Plyometric and Speed Exercises on Physical Performance of Pre-Peak-Height-Velocity Soccer Players

International Journal of Sports Physiology and Performance ◽

10.1123/ijspp.2015-0176 ◽

2016 ◽

Vol 11 (2) ◽

pp. 240-246 ◽

Cited By ~ 23

Author(s):

David Rodríguez-Rosell ◽

Felipe Franco-Márquez ◽

Fernando Pareja-Blanco ◽

Ricardo Mora-Custodio ◽

Juan M. Yáñez-García ◽

...

Keyword(s):

Resistance Training ◽

Strength Training ◽

Physical Performance ◽

Peak Height ◽

Sprint Performance ◽

Soccer Players ◽

Height Velocity ◽

Peak Height Velocity ◽

Low Load ◽

Low Volume

Purpose:To analyze the effects of low-load, high-velocity resistance training (RT) combined with plyometrics on physical performance in pre-peak-height-velocity (PHV) soccer players.Methods:Thirty young soccer players from the same academy were randomly assigned to either a strength training (STG, n = 15) or a control group (CG, n = 15). Strength training consisted of full squat exercise with low load (45–58% 1RM) and low volume (4–8 repetitions/set) combined with jumps and sprints twice a week over 6 wk of preseason. The effect of the training protocol was assessed using sprint performance over 10 and 20 m, countermovement jump, estimated 1-repetition maximum, and average velocity attained against all loads common to pre- and posttests in full squat.Results:STG showed significant improvements (P = .004–.001) and moderate to very large standardized effects (ES = 0.71–2.10) in all variables measured, whereas no significant gains were found in CG (ES = –0.29 to 0.06). Moreover, significant test × group interactions (P < .003–.001) and greater between-groups ESs (0.90–1.97) were found for all variables in favor of STG compared with CG.Conclusion:Only 6 wk of preseason low-volume and low-load RT combined with plyometrics can lead to relevant improvements in strength, jump, and sprint performance. Thus, the combination of field soccer training and lightweight strength training could be used for a greater development of the tasks critical to soccer performance in pre-PHV soccer players.

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