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http://dx.doi.org/10.5762/KAIS.2010.11.10.3802

Changes in 40m sprint times after acute squat exercise  

Han, Gun-Soo (Department of Health Science, Kinesiology, Recreation and Dance, University of Arkansas)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.11, no.10, 2010 , pp. 3802-3807 More about this Journal
Abstract
In most sports, a key evaluator of athletic performance is sprinting speed. There are two trainable factors associated with speed including mechanical efficiency and force production. The squat exercise is one of the beneficial exercises implemented to enhance lower extremity power for sprinters. However, there has been little research on the optimal exercise intensity for sprinting performance. This study was to investigate whether performing different squat exercises prior to a 40m sprint would improve running speed. Ten male high school sprinters performed six 40m sprints following the different squat intensities (30%, 50%, 70%, and 90% of 1RM). A one-way ANOVA with repeated measures revealed that 40m sprint times had significantly improved after 50% ($5.27{\pm}0.13$, p<0.0001) and 70% ($5.26{\pm}0.15$, p<0.0001) of 1RM squat exercises compared to sprint times not following a squat % ($5.33{\pm}0.16$). Performing squat exercises with intensities of 50% and 70% of 1RM may improve 40m sprint times. Therefore, it is suggested that coaches and sprinters could include a medium intensity squat exercise (70%) in the warm-up procedure in order to improve sprint performance.
Keywords
Squat exercise; Sprint performance; Sprinter;
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Times Cited By KSCI : 1  (Citation Analysis)
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