IntroductionAthletics is a sport that contains many different disciplines, including track sprints, track distance running, and field events, which include javelin throwing and pole vaulting, among others. Although it is primarily an individual sport (with the exception of relay races), in high school track and field, track and field athletes earn points based on their results to establish an overall score. 'team. Each athlete in each event must do their best for two reasons: their individual result and their team score. Running and walking, although they seem similar, are two different modes of movement. Running is a ballistic race in which two phases occur: (1) a flight phase (also called recovery phase) without contact with the ground, and (2) a stance phase when one leg is at the soil (Plisk, 2008). . This differs from walking, as there is no flight phase. Even in running there are two different disciplines. Distance running occurs at slower speeds and requires a great deal of focus on economy of movement, whereas sprinting occurs at maximum speeds with little attention to economy (Bushnell & Hunter, 2007). Because of the different goals of these types of running, distance running and sprinting techniques are unique. A more acute hip angle is observed in sprinters compared to distance runners, due to the need to limit ground contact time, which is a braking force, during a sprint (Bushnell & Hunter, 2007) . In a sprint (or any race, for that matter), the goal is to finish as quickly as possible. By limiting the time spent in the stance phase, braking time is reduced. A race is scored based on the time it takes an athlete to complete the predefined distance. Generally, the time is measured from the starting gun to the middle of the paper......runners at equal and maximum speeds. Sports Biomechanics, 6(3), 261-268. Fletcher, I. (2009). Biomechanical aspects of spring running. Professional strength and conditioning. 16, 20-23. Retrieved from http://www.uksca.org.uk/uksca/RelatedFiles/sprint%20running.pdfHarrison, AJ (July 2010). Biomechanical Factors in Sprint Training: Where Science Meets Coaching. International Symposium on Biomechanics in Sport. Retrieved from https://ojs.ub.uni-konstanz.de/cpa/article/viewFile/4375/4067Plisk SS (2008). Development of speed, agility and speed endurance. In Baechle, TR & Earle, RW (Eds.), Essentials of strength and conditioning (pp. 457-485). Champaign, IL: Human Kinetics. Potach, DH and Chu, DA (2008). Plyometric training. In Baechle, TR & Earle, RW (Eds.), Essentials of strength and conditioning (pp. 413-446). Champaign, Illinois: Human Kinetics.