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The data used in this analysis was from force plate testing performed by one professional baseball club. The data consists of 4 scan metrics: (1) AVCF - Average Vertical Concentric Force, (2) ERVF - Eccentric Rate Vertical Force, (3) CVI - Concentric Vertical Impulse and (4) VJUMP - Vertical Jump. Injury data was also obtained for the same set of players. This injury data consisted of injury dates (occurrence and clearance), injury location and injury severity. The injury severity consisted of 3 possible outcomes: (1) minor, (2) major and (3) severe. A merge was done between the force plate data and the injury data to match up the scans where an injury was present. With the data merged, analysis could then be performed.
This study demonstrates that elbow injuries are more likely to occur with athletes that rely on momentum as impulse is defined as the change in momentum. This hypothesis is further strengthened by the negative significant relationship of vertical jump; if the athlete jumps higher and uses more impulse they achieved this greater result by utilizing more momentum rather than explosive strength reflected by the other force plate variables which are divided by time rather than multiplied. Therefore, this testing indicates that players susceptible to elbow injury based on force plate metrics can be predicted.
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