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Trunk Stability, Trunk Strength and Sport Performance Level in Judo
David Barbado1, Alejandro Lopez-Valenciano1, Casto Juan-Recio1
1Sport Research Centre, Miguel Hernández University, Elche, Spain.
Plos One
|May 28, 2016
Summary
Elite judo athletes exhibit superior trunk extensor strength and better control of forward trunk movement. These specific trunk muscle functions are key indicators differentiating top-tier judokas from national-level competitors.
Area of Science:
- Sports Science
- Biomechanics
- Judo Performance Analysis
Background:
- Trunk muscle function is theorized to influence judo performance.
- Limited research exists on trunk muscle contributions in elite judokas.
Purpose of the Study:
- To compare trunk muscle function between international and national level judokas.
- To identify specific trunk strength and stability parameters critical for elite judo performance.
Main Methods:
- Isokinetic testing for trunk flexor and extensor strength and endurance.
- Core stability assessment via sudden loading and stable/unstable sitting protocols.
- Comparison of trunk muscle function between international (n=11) and national (n=14) judokas.
Main Results:
- International judokas demonstrated significantly greater trunk extensor strength.
- Elite judokas exhibited reduced trunk angular displacement following anterior loading.
- No significant differences were observed in trunk flexor strength, lateral/posterior loading responses, or sitting balance control.
Conclusions:
- Trunk extensor strength and anterior perturbation stability are crucial for elite judo.
- Trunk strength and endurance are unlikely to be limiting factors for core stability in competitive judokas.
- Specific aspects of trunk muscle function, particularly extensor strength, differentiate high-level judo practitioners.
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