AOSSM 2022 Annual Meeting Recordings - no CME-A Newly Characterized Parameter for Biomechanical Evaluation

A Newly Characterized Parameter for Biomechanical Evaluation

Video Transcription

Video Summary

In this video, James Beamer-Carr presents the findings of a study comparing the effects of contralateral trunk tilt (leaning away from the normal axis towards the glove side) and ipsilateral trunk tilt (leaning towards the arm side) in high school and professional baseball pitchers. The study used data from a MODIS global database and included 58 high school pitchers and 284 professional pitchers. The results showed that professional pitchers demonstrated a higher amount of ipsilateral trunk tilt in the early phases of the throwing motion. Excessive contralateral trunk tilt was associated with increased shoulder and elbow forces in both high school and professional pitchers. Increased ipsilateral trunk tilt was associated with higher ball velocity and decreased shoulder forces in high school pitchers, and increased ball velocity and decreased torque in professional pitchers. The study suggests that further research is needed to understand the impact of trunk tilt on injury risk.

Asset Caption

Joshua Dines, MD

Keywords

contralateral trunk tilt

ipsilateral trunk tilt

high school pitchers

professional pitchers

shoulder and elbow forces