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Posterior rotator cuff strengthening using theraband(r) in a functional diagonal pattern in collegiate baseball
P A Page1, J Lamberth, B Abadie
1Phillip A. Page is Physical Therapy Student at Louisiana State University, New Orleans, LA 70112-2262.
Journal of Athletic Training
|January 1, 1993
Summary
This study found that Theraband elastic band exercises effectively strengthened the posterior rotator cuff in baseball pitchers. This functional eccentric training improved eccentric force production at 60 degrees/s.
Area of Science:
- Sports Medicine
- Biomechanics
- Exercise Physiology
Background:
- The deceleration phase of pitching requires eccentric rotator cuff contraction.
- Traditional isotonic exercises may not adequately target this specific eccentric pattern.
- A need exists for functional strengthening of the posterior rotator cuff in baseball pitchers.
Purpose of the Study:
- To compare the effectiveness of a functional diagonal Theraband elastic band strengthening routine versus traditional isotonic exercises.
- To evaluate the impact on eccentric force production of the posterior rotator cuff in collegiate baseball pitchers.
- To determine if functional eccentric training enhances rotator cuff strength specific to the pitching motion.
Main Methods:
- Twelve collegiate baseball pitchers were divided into an experimental group (isotonic + Theraband) and a control group (isotonic only) for 6 weeks.
- The experimental group performed Theraband exercises in a functional-diagonal pattern emphasizing eccentric contraction.
- Eccentric force production of the posterior rotator cuff was measured using an isokinetic dynamometer at 60 and 180 degrees/s pre- and post-training.
Main Results:
- The experimental group showed a significant increase in eccentric force production at 60 degrees/s (+19.8%), while the control group showed a decrease (-1.6%).
- No significant differences in eccentric force production were observed between groups at 180 degrees/s; both groups experienced a decrease.
- Theraband training was effective for functional eccentric strengthening of the pitching shoulder's posterior rotator cuff at 60 degrees/s.
Conclusions:
- Functional eccentric training using Theraband elastic bands is superior to traditional isotonic exercises for enhancing posterior rotator cuff strength at lower speeds relevant to pitching deceleration.
- This targeted approach improves the specific muscle actions required during the pitching mechanism.
- Theraband exercises offer a practical and effective method for injury prevention and performance enhancement in baseball pitchers.
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