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The relationship of upper extremity strength to throwing speed
The American Journal of Sports Medicine
|November 1, 1982
Summary
This study found that stronger elbow and wrist extension movements in professional baseball players correlate with higher throwing speeds. These findings highlight key muscle actions important for pitching performance.
Area of Science:
- Sports Medicine
- Biomechanics
- Human Physiology
Background:
- Professional baseball players rely on optimal upper extremity strength for performance.
- Understanding the relationship between specific muscle group strength and throwing velocity is crucial for training and injury prevention.
Purpose of the Study:
- To investigate the correlation between upper extremity isokinetic strength and throwing speed in professional baseball players.
- To identify specific muscle actions that significantly predict throwing velocity.
Main Methods:
- Eight professional baseball players underwent isokinetic strength testing of the upper extremity using the Cybex II Isokinetic Dynamometer.
- Throwing speeds were measured using radar gun technology.
- Statistical analysis, including simple and multiple regression, was employed to analyze the data.
Main Results:
- A statistically significant relationship was observed between the strength of elbow extension movements and throwing speed.
- A significant relationship was also found between wrist extension movement strength and throwing speed.
- Regression analysis indicated that these specific strength measures could predict throwing velocity.
Conclusions:
- Isokinetic strength in elbow and wrist extension is a key determinant of throwing speed in professional baseball players.
- Targeted strengthening of these muscle groups may enhance pitching performance.
- These findings can inform training programs aimed at improving throwing velocity and potentially reducing injury risk.