de Freitas, Victor Hugo, Ramos, Solange de Paul, Leicht, Anthony, Alves, Thamara, Rabelo, Felipe, Bara-Filho, Mauricio, Guarnier, Flavia, and Nakamura, Fábio Yuzo (2018) Validation of the futsal-specific intermittent shuttle protocol for the simulation of the physical demands of futsal match-play. International Journal of Performance Analysis in Sport, 17 (6). pp. 934-947.

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Abstract

The aim of this study was to analyse the impact of a futsal-simulated match (SM) and futsal-specific intermittent shuttle protocol (FISP) on physical performance, and muscle damage, inflammation, and oxidative stress markers immediately and 24 h post protocols. Thirteen, male, U-20 futsal players performed the FISP and the SM on two different occasions. Heart rate (HR) and rating of perceived exertion (RPE) were monitored during both protocols with countermovement jump (CMJ), perceived muscle soreness, and blood samples measured Pre, Post, and 24 h post protocols. Player’s HR was not significantly different between FISP and SM (p > .05) with RPE significantly higher during the FISP (p < .05). Player's CMJ for FISP and SM (p < .05) decreased at Post and 24 h compared with Pre, without significant increases in perceived muscle soreness, interleukin-6,tumour necrosis factor-α, carbonylated proteins and advanced products of protein oxidation (AOPP) at 24 h (p > .05). Creatine kinase (CK) increased 24 h for SM (p < .05). The chances of FISP being different from SM were very likely for CK and AOPP 24 h and unclear for other variables. The results found demonstrated the FISP as a valid simulator of futsal match demands.

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