The effect of three weeks of small sided game with blood flowrestriction on nervous and functional indicators of futsal players

The aim of this study was to evaluate neural (IEMG and RMS) and functional indexes after three weeks of Small Sided Game (SSGs) with continuous and interval blood flow restriction (BFR).

Eighteen futsalists (age 22.67 ± 1.14 years) were divided into three groups without BFR (n=6), BFR (n=6), and interval BFR (n=6). All participants in the three-week study were small sided game with blood flow restriction. Electromyography device and the isoknetic system were used to collect data related with electrical activity and isokinetic variables.

In the lunges, the electrical activity of recrus femoris and biceps femoris muscles, only in the blood flow restriction groups (BFR and Interval BFR), there was a significant increase between groups(P > 0.05). Shoot variables did not significantly increase between groups and intra-group (P < 0.05). Sargent jumps also did not significantly increase between groups (P > 0.05). Power was also increased in extension and flexion, only in groups with blood flow restriction significant increase between groups was found (P> 0.05). Work / body weight did not significantly increase between group and intra-group < br />(P < 0.05). The work fatigue and average peak torque had similar results, so that they only increased significantly in the Paired-Sample t-test groups with blood flow restriction (P > 0.05).

Although the results of the present study showed that the increase in functional and neural activation indexes in futsalists with blood flow restriction in the protocol training, but more research are needed in the field of BFR + SSG in order to recommend this protocol to coaches and futsalists.