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Does the sequence of plyometric and dynamic stretching exercises influence subsequent sprint performance? A
Devisson S Silva1,2, Daniel Boullosa3,4, Erika V M Pereira1
1Department of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Brazil.
Biology of Sport
|March 25, 2024
Summary
Dynamic stretching before drop jumps enhances the final sprint acceleration phase in athletes. This post-activation performance enhancement strategy is most beneficial for individuals with lower limb power.
Area of Science:
- Sports Science
- Exercise Physiology
- Biomechanics
Background:
- Understanding the acute effects of exercise sequencing on athletic performance is crucial for optimizing training.
- Post-activation performance enhancement (PAPE) is a phenomenon where a prior conditioning activity can improve subsequent explosive performance.
- The specific order of dynamic stretching (DS) and drop jumps (DJ) and their impact on sprint performance, particularly in relation to lower limb power, requires further investigation.
Purpose of the Study:
- To evaluate the acute effects of the sequence order of dynamic stretching (DS) and drop jumps (DJ) on sprint performance in competitive athletes.
- To investigate the relationship between post-activation performance enhancement (PAPE) in sprint performance and lower limb power.
- To determine if specific exercise sequences can enhance different phases of acceleration.
Main Methods:
- A randomized crossover design involving 13 male jumpers and sprinters.
- Three conditions were tested after a standardized warm-up: dynamic stretching followed by drop jumps (DS+DJ), drop jumps followed by dynamic stretching (DJ+DS), and a control condition.
- Sprint performance over 40m was analyzed, focusing on initial (0-20m) and final (20-40m) acceleration phases.
- Two-way repeated-measures ANOVA and Pearson's correlation were used for statistical analysis.
Main Results:
- No significant effect of intervention sequence on overall 40m sprint performance was observed.
- Sprint performance in the final acceleration phase (20-40m) was significantly higher following the DS+DJ condition compared to baseline.
- Initial acceleration (0-20m) was significantly impaired in the DJ+DS condition compared to baseline.
- A negative correlation was found between countermovement jump (CMJ) height and improvement in final acceleration, indicating that athletes with lower limb power benefited more.
Conclusions:
- Performing dynamic stretching before drop jumps is an effective strategy to enhance the final acceleration phase of sprinting.
- The sequence of exercises significantly impacts different phases of sprint performance.
- Athletes with lower levels of lower limb power experience the greatest benefits from this post-activation performance enhancement strategy.
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