Does the jump performance level achieved during the preparatory phase carry over to the competition phase in elite footballers?
DOI:
https://doi.org/10.5281/zenodo.14579621Keywords:
Soccer, Preparatory Phase, Competition Phase, Vertical Jumps, Explosive ForceAbstract
Study aim(s): This study aims to validate changes in jump performance across different phases and propose a plyometric and general training program to maintain or enhance performance during the competition phase.
Methods: Key performance parameters such as height, weight, lever length, and leg length were measured using the My Jump 3 App. Participants performed several jump tests, including the Countermovement Jump (CMJ), Squat Jump (SJ), and Abalakov Jump, recorded with an iPhone 13 Pro at 240 frames per second. Data on force, flight time, average speed, and power were analyzed. Statistical evaluations were conducted using SPSS 26, the Shapiro-Wilk test applied to assess normality, and Repeated Measures ANOVA used to examine differences between tests.
Results: The CMJ tests revealed significant improvements following the preparatory phase (p < 0.05), but performance declined during the competition phase (p > 0.05). Trends in force, power, and flight phase suggest that the post-preparatory gains are primarily technique-based, with no further improvements during competition and even a slight decline in performance.
Conclusions: Jump performance improves after the preparatory phase but not during the competition phase, highlighting the importance of technique over strength. Training programs should emphasize refining technique, enhancing muscular elasticity, and improving mobility to sustain performance throughout the season.
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