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Vertically and horizontally directed muscle power exercises: Relationships with top-level sprint performance
Irineu Loturco1, Bret Contreras2, Ronaldo Kobal1
1NAR-Nucleus of High Performance in Sport, São Paulo, Brazil.
For sprinters, horizontal exercises like hip thrusts enhance acceleration, while vertical jumps improve top speed. This research supports the force-vector theory for optimizing training.
Area of Science:
- Sports Science
- Biomechanics
- Athletic Performance
Background:
- Sprint running performance relies on force application.
- Force-vector theory suggests optimal force orientation is crucial for sprinters.
- Understanding exercise-specific contributions to distinct sprint phases is vital.
Purpose of the Study:
- To investigate the relationship between vertically- and horizontally-directed exercises and sprint performance.
- To compare the efficacy of different training modalities in developing sprint capabilities.
- To provide evidence-based guidance for sprint training program design.
Main Methods:
- Sixteen elite sprinters and jumpers participated.
- Athletes performed vertical jumps, loaded jump squats, hip thrusts, and sprint tests at various distances (10m to 150m).
- Statistical analysis correlated exercise performance with sprint metrics.
Main Results:
- Hip thrusts showed a strong association with the maximum acceleration phase (0-10m; r=0.93).
- Vertical jumps (loaded and unloaded) correlated significantly with top-speed phases (distances >40m; r=0.88-0.96).
- Findings support the differential impact of exercise types on sprint mechanics.
Conclusions:
- Training exercises should be selected based on their relevance to specific sprint phases.
- Horizontally-focused exercises like hip thrusts are beneficial for acceleration.
- Vertically-focused exercises like jumps are more related to maintaining top speed.
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