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Background <p>The modality of resistance training (e.g., plyometric training [PLYO], traditional resistance training [TRT]) can specifically affect gains in muscle strength and power measures in soccer players. Further, effects of resistance training modality on neuromuscular performance measures (e.g., electromechanical delay [EMD]) are inconsistent in non-athletes.</p> Objective <p>To examine the effects of PLYO, TRT, and combined PLYO and TRT (i.e., complex training [CT]) on muscle strength, power, and EMD in highly trained male soccer players (age: 21.7 ± 1.6 years).</p> Methods <p>Participants were randomly assigned to eight weeks of CT (<i>n</i> = 30), PLYO (<i>n</i> = 28), and TRT (<i>n</i> = 26) in addition to their regular soccer training, or soccer training control condition (<i>n</i> = 29). Pre- and post-measurements comprised tests for maximal eccentric knee flexor and concentric knee extensor peak torque (PT), their functional ratio (FUNC-H/Q), and the corresponding EMD of the knee flexors at three angular velocities (60, 180, and 300°/s).</p> Results <p>Results showed a significant main effect of group for concentric and eccentric PT (<i>p</i>&lt;.001, 1.67 ≤ <i>d</i> ≤ 3.17). Concentric and eccentric PT were larger for CT, PLYO, and TRT groups compared to control group (CG) with the greatest effects for CT across all angular velocities (<i>p</i>&lt;.001, 0.95 ≤ <i>d</i> ≤ 3.57). Additionally, a significant group effect was identified for FUNC-H/Q at 300°/s (<i>p</i>=.002, <i>d</i> = 0.83) with lower ratios in PLYO and TRT groups but not CT compared with CG (<i>p</i>&lt;.001, -0.94 ≤ <i>d</i>≤-0.83). Further, significant and large-sized group effects for EMD were found at 60, 180, and 300°/s (<i>p</i>&lt;.001, 0.96 ≤ <i>d</i> ≤ 2.89). Post-hoc test showed lower EMD values in CT compared with PLYO, TRT, and CG (<i>p</i>&lt;.001, -2.88 ≤ <i>d</i>≤-0.87). Moreover, EMD was lower in PLYO and TRT compared with CG at 60 and 300°/s (<i>p</i>&lt;.001, -1.84 ≤ <i>d</i>≤-1.10).</p> Conclusions <p>Complex training, PT, and TRT were effective training modalities in improving neuromuscular performance (i.e., maximal eccentric knee flexor/concentric knee extensor PT, knee flexor EMD) in highly trained soccer players. More specifically, CT appears to be superior in maintaining higher FUNC-H/Q values compared with PLYO and TRT.</p> <p><i>Trial Registration</i>: This study does not report results related to healthcare interventions using human participants and therefore it was not prospectively registered on a clinical trial registry.</p>

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Effects of Complex, Plyometric, and Traditional Resistance Training on Neuromuscular Performance in Highly Trained Male Soccer Players: A Randomized Controlled Trial

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月16日

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  • Said El-Ashker,
  • Helmi Chaabene,
  • Karim Chamari,
  • Atle H. Saeterbakken,
  • David G. Behm,
  • Olaf Prieske

摘要

Background

The modality of resistance training (e.g., plyometric training [PLYO], traditional resistance training [TRT]) can specifically affect gains in muscle strength and power measures in soccer players. Further, effects of resistance training modality on neuromuscular performance measures (e.g., electromechanical delay [EMD]) are inconsistent in non-athletes.

Objective

To examine the effects of PLYO, TRT, and combined PLYO and TRT (i.e., complex training [CT]) on muscle strength, power, and EMD in highly trained male soccer players (age: 21.7 ± 1.6 years).

Methods

Participants were randomly assigned to eight weeks of CT (n = 30), PLYO (n = 28), and TRT (n = 26) in addition to their regular soccer training, or soccer training control condition (n = 29). Pre- and post-measurements comprised tests for maximal eccentric knee flexor and concentric knee extensor peak torque (PT), their functional ratio (FUNC-H/Q), and the corresponding EMD of the knee flexors at three angular velocities (60, 180, and 300°/s).

Results

Results showed a significant main effect of group for concentric and eccentric PT (p<.001, 1.67 ≤ d ≤ 3.17). Concentric and eccentric PT were larger for CT, PLYO, and TRT groups compared to control group (CG) with the greatest effects for CT across all angular velocities (p<.001, 0.95 ≤ d ≤ 3.57). Additionally, a significant group effect was identified for FUNC-H/Q at 300°/s (p=.002, d = 0.83) with lower ratios in PLYO and TRT groups but not CT compared with CG (p<.001, -0.94 ≤ d≤-0.83). Further, significant and large-sized group effects for EMD were found at 60, 180, and 300°/s (p<.001, 0.96 ≤ d ≤ 2.89). Post-hoc test showed lower EMD values in CT compared with PLYO, TRT, and CG (p<.001, -2.88 ≤ d≤-0.87). Moreover, EMD was lower in PLYO and TRT compared with CG at 60 and 300°/s (p<.001, -1.84 ≤ d≤-1.10).

Conclusions

Complex training, PT, and TRT were effective training modalities in improving neuromuscular performance (i.e., maximal eccentric knee flexor/concentric knee extensor PT, knee flexor EMD) in highly trained soccer players. More specifically, CT appears to be superior in maintaining higher FUNC-H/Q values compared with PLYO and TRT.

Trial Registration: This study does not report results related to healthcare interventions using human participants and therefore it was not prospectively registered on a clinical trial registry.