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Updated: Feb 16, 2026

Effects of a Novel Neuromuscular Training Intervention on Jump, Sprint, and Change of Direction in Adult Female Soccer Players
Published on: June 10, 2025
Comparison between traditional strength training and complex contrast training on soccer players
Juliano Spineti1,2,3, Tiago Figueiredo4,5,6, Jeffrey Willardson7
1Department of Sport Science, Exercise and Health, Trás-os-Montes e Alto Douro University, Vila Real, Portugal - juliano.spineti@hotmail.com.
Complex and contrast training (CCT) significantly improved sprint times, change of direction speed, and squat jump performance in young male soccer players. Traditional strength training (TST) did not yield significant improvements in these athletic metrics.
Area of Science:
- Sports Science
- Exercise Physiology
- Biomechanics
Background:
- Soccer performance relies heavily on sprint ability, change of direction speed (COD), and explosive power (squat jump - SJ).
- Optimizing training methodologies is crucial for enhancing these key physical attributes in young male athletes.
- Traditional Strength Training (TST) and Complex and Contrast Training (CCT) are two distinct resistance training protocols with varying physiological stimuli.
Purpose of the Study:
- To compare the effectiveness of CCT versus TST on sprint performance, COD, and SJ in young male soccer players.
- To determine which training modality, CCT or TST, yields superior improvements in speed and power metrics relevant to soccer.
Main Methods:
- A randomized experimental design was employed over eight weeks with 22 young male soccer players.
- Participants were assigned to either a CCT group (performing paired high-power and high-velocity exercises) or a TST group (performing straight-set resistance exercises).
- Sprint tests (5, 10, 20, 30m splits), COD, and SJ were assessed pre- and post-intervention, with data analyzed using two-way ANOVA (P<0.05).
Main Results:
- The CCT group showed significant improvements in 5m sprint time (P=0.04), COD (P<0.001), and SJ (P<0.001) from pre- to post-intervention.
- Significant within-group improvements were observed for CCT, with large effect sizes for COD and SJ.
- The TST group did not demonstrate significant improvements in any measured variables, and no significant differences were found between groups post-intervention.
Conclusions:
- Complex and Contrast Training (CCT) is an effective protocol for enhancing sprint speed, change of direction ability, and squat jump performance in male soccer players.
- CCT may offer a more potent stimulus for improving key soccer-specific physical qualities compared to Traditional Strength Training (TST).
- Further research could explore the long-term effects and optimal implementation of CCT in soccer-specific training programs.
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