Proposition of a hybrid model of postactivation potentiation to improve the performance of sprinter swimmers

Author(s)

Tarine Botta de Arruda

• Document type: Master's Dissertation
• Press: Ribeirão Preto.
• Institution: Universidade de São Paulo (USP). Escola de Educação Física e Esporte de Ribeirão Preto (EEFERP)
• Defense date: 2019-02-01

Examining board members

Marcelo Papoti; Fúlvia de Barros Manchado Gobatto; Paulo Roberto Pereira Santiago; Alessandro Moura Zagatto

• Advisor: Marcelo Papoti

Abstract

Traditionally in swimming the warm-up protocols are applying in a high volume and moderate intensity. However, evidences show that the utilization of efforts with high intensity, mainly with trainings that involves the force development, can bring some benefit to the swimmer, effect known as post-activation potentiation (PAP). Thereby, the objective of the present study was to propose a hybrid model for PAP in order to improves swimming performance and verify neuromuscular responses and mechanical parameters in relation to PAP. For this, 13 swimmers performed four PAP protocols followed by a maximum performance of 50m. In the first protocol (P1) the participants performed a conventional warm-up. In the second protocol (P2) the swimmers of submitted to lunge exercise, in the third (P3) they made efforts in the pull-up and box jumps on the and, in the fourth protocol (P4), the swimmers were submitted to the hybrid model, using the second and the third protocol exercises. The PAP protocols had no effect on standard warm-up. However, the P2 (27,01 ± 1,25 s) was the one that maintained the same performance of P1 (27,01 ± 1,18 s) and presented improvements in the mechanical parameters of the block exit in relation to the other protocols. Still, the turn time also had a positive effect, mainly in P3 (3,12 ± 0,28 s) which shows the improvement of this variable in all protocols. The values of peak strength (258,04 ± 51,89 N) for the upper limbs showed a possible positive chance of increase only in the individual P4 interval and for all lower limbs of voluntary activation in relation to standard warming up. In conclusion, the proposed protocols were not efficient for performance improvement at 50-m free swim compared to the standard model. (AU)

• FAPESP's process: 16/10029-4 - Proposal of a hybrid model of post-activation potentiation to improve the performance of sprinters swimmers
• Grantee: Tarine Botta de Arruda
• Support Opportunities: Scholarships in Brazil - Master