Influence of Vertical Jump Kinetics on Change of Direction Ability
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Authors
Cloninger, Bailey
Issue Date
2020-02
Type
Thesis
Language
en_US
Keywords
Alternative Title
Description/Abstract
PURPOSE: The purpose of this study is to analyze the relationship between a female athlete’s vertical jump and her ability to change direction. METHODS: Sixty Division II female athletes (mean±SD; age= 19.40±1.32; mass= 68.42±11.63kg; height= 169.95±8.67cm) completed body composition testing on the InBody 770© bioelectrical impedance device, performed a countermovement jump (CMJ) and static jump (SJ) on dual force plates, then participated in the 5-0-5 agility test and T-Test, respectively. RESULTS: A strong negative correlation was found between the 5-0-5 agility test and countermovement jump (r= -.421) and the t-test (r= -.557). The static jump and 5-0-5 test also produced a negative correlation r= (-.463) as well as the static jump and t-test (r= -.580). Further, participants exemplified a positive correlation between percent body fat and times for the 5-0-5 (r= .429) and t-test (r= .443). CONCLUSIONS: Those who produced the most power and had the highest vertical jump were also the fastest sprinters in this study when presented with change-of-direction tasks. Lower body power is the best predictor of vertical jump height and change-of-direction speed. PRACTICAL APPLICATION: One important finding is the significant negative correlation between jump height and change-of-direction speed. The results suggest that athletes who produce more power in the vertical direction will also change direction faster. Athletes may look to improve their power output by using strength training exercises such as the squat, deadlift, clean, lunge, etc.