| Autor: |
Loturco I; Nucleus of High Performance in Sport⁻NAR, Sao Paulo 04753060, Brazil. irineu.loturco@terra.com.br., Pereira LA; Nucleus of High Performance in Sport⁻NAR, Sao Paulo 04753060, Brazil. lucasa_pereira@outlook.com., Kobal R; Nucleus of High Performance in Sport⁻NAR, Sao Paulo 04753060, Brazil. rokorin2002@hotmail.com., Cal Abad CC; Nucleus of High Performance in Sport⁻NAR, Sao Paulo 04753060, Brazil. c.cavinato@uol.com.br., Fernandes V; B3 Track & Field Club, Sao Paulo 04753060, Brazil. victor.fernandescoach@bol.com.br.; Association of High-Performance Training & Sports Development⁻ADAPT, Sao Paulo 04753060, Brazil. victor.fernandescoach@bol.com.br., Ramirez-Campillo R; Research Nucleus in Health, Physical Activity and Sport, Department of Physical Activity Sciences, Universidad of Los Lagos, Osorno 5290000, Chile. r.ramirez@ulagos.cl., Suchomel T; Department of Human Movement Sciences, Carroll University, Waukesha, WI 53186, USA. timothy.suchomel@gmail.com. |
| Abstrakt: |
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. 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. Pearson product-moment coefficient of correlation and multiple regression analyses were used to determine the relationships between the sprinting velocities and vertical jump outputs. 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). The correlation coefficients between the CMJ outcomes and sprint results varied between moderate and very large (from 0.38 to 0.88). Finally, the coefficients of determination (R²) ranged from 0.71 to 0.85 for the different multiple regressions involving PFP automatic measures. The PFP can provide practitioners with quick and accurate information regarding competitive athletes. 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. |
