Sprint performance and mechanical outputs computed with an iPhone app: Comparison with existing reference methods
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Author/sRomero Franco, Natalia; Jiménez Reyes, Pedro; Castaño Zambudio, Adrián; Capelo Ramírez, Fernando; Rodríguez Juan, Juan José; [et al.]
Discipline/sActividad Física y Deporte
The purpose of this study was to assess validity and reliability of sprint performance outcomes measured with an iPhone application (named: MySprint) and existing field methods (i.e. timing photocells and radar gun). To do this, 12 highly trained male sprinters performed 6 maximal 40-m sprints during a single session which were simultaneously timed using 7 pairs of timing photocells, a radar gun and a newly developed iPhone app based on high-speed video recording. Several split times as well as mechanical outputs computed from the model proposed by Samozino et al. [(2015). A simple method for measuring power, force, velocity properties, and mechanical effectiveness in sprint running. Scandinavian Journal of Medicine & Science in Sports. https://doi.org/10.1111/sms.12490] were then measured by each system, and values were compared for validity and reliability purposes. First, there was an almost perfect correlation between the values of time for each split of the 40-m sprint measured wi...