An Inferential Investigation Into Countermovement Jump Determinants of Ulnar Collateral Ligament Injuries in Collegiate Baseball Pitchers
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View abstract on PubMed
Summary
This summary is machine-generated.Countermovement jump (CMJ) performance metrics, specifically peak ground reaction force (GRF) and power, correlate with elbow varus torque (EVT) rate of torque development in collegiate pitchers. This finding aids in predicting and preventing UCL injuries.
Area Of Science
- Biomechanics
- Sports Medicine
- Baseball Pitching Analysis
Background
- Countermovement jump (CMJ) analysis can predict ulnar collateral ligament (UCL) injuries in baseball pitchers.
- A specific biomechanical link between CMJ metrics and UCL sprains remains unclear.
Purpose Of The Study
- To compare CMJ parameters in collegiate pitchers with high and low elbow varus torque (EVT).
- To investigate the relationship between CMJ and EVT kinetics using multilinear regression.
- Hypothesized that higher EVT would correlate with greater CMJ measures and CMJ kinetics would explain EVT variance.
Main Methods
- Descriptive laboratory study involving 19 NCAA Division I collegiate baseball pitchers.
- Utilized 3D motion capture, ground reaction force (GRF) technology, and ball release speed.
- Statistical analyses included ANOVA and Pearson correlations with significance at P < .05.
Main Results
- The rate of torque development for EVT was significantly higher in the high EVT group (605 ± 74 N·m·s⁻¹) compared to the low EVT group (353 ± 103 N·m·s⁻¹).
- CMJ data showed no significant differences between groups.
- Correlation models revealed that peak CMJ GRF (r = 0.60) and peak CMJ power (r = 0.53) significantly explained variance in EVT rate of torque development.
Conclusions
- CMJ kinetics are more strongly associated with the rate of EVT than absolute EVT in collegiate pitchers.
- Monitoring increases in peak GRF, concentric impulse, and peak CMJ power may help identify pitchers at risk for elbow valgus overload and prevent UCL injuries.
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