In part, this may be explained by two different factors: (1) the key contribution of speed ability to specific performance in many sport disciplines and (2) the inherent difficulties of enhancing maximum sprint capacity in elite sprinters (e.g., Olympians), who usually depend on hundredths of a second to achieve positive outcomes during competitions. The actual performance of professional sprinters is one of the most studied issues in sport science. Due to the strong correlations observed, coaches are encouraged to frequently adjust and tailor the training strategies of their sprinters, using practical and timesaving PFP measurements. The PFP can provide practitioners with quick and accurate information regarding competitive athletes. Finally, the coefficients of determination (R 2) ranged from 0.71 to 0.85 for the different multiple regressions involving PFP automatic measures. The correlation coefficients between the CMJ outcomes and sprint results varied between moderate and very large (from 0.38 to 0.88). The SJ parameters were moderately to near perfectly associated with the different sprint distances, and the SJ height presented the highest correlation scores ( r = 0.90 with velocities over 10- and 20-m). Pearson product-moment coefficient of correlation and multiple regression analyses were used to determine the relationships between the sprinting velocities and vertical jump outputs. To test these correlations, 12 top-level sprinters performed vertical jumps (squat and countermovement jumps SJ and CMJ, respectively), a 60 m sprint test, and a 150 m sprint test. This study aimed to examine the associations between a series of mechanical variables automatically generated by a portable force plate (PFP) and the actual performance of professional sprinters over a 150 m course.
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