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Revista Brasileira de Medicina do Esporte

versão impressa ISSN 1517-8692


KALVA-FILHO, Carlos Augusto et al. Comparison of the anaerobic power measured by the RAST test at different footwear and surfaces conditions. Rev Bras Med Esporte [online]. 2013, vol.19, n.2, pp.139-142. ISSN 1517-8692.

INTRODUCTION: Running Anaerobic Sprint Test (RAST) has been considered a valid test for anaerobic evaluation. However, since the floor surfaces and footwear can affect some outcomes measured during exercise, this also can modify the RAST outcomes. OBJECTIVE: Was to compare the RAST outcomes measured using soccer cleats on grass (RASTSCG) and using shoes on the track (RASTST). METHODS: Eight young male soccer players (under-17 category; 16±1 years) participated in the study. The subjects performed two RAST on different days (recovery > 24h). The RAST test consisted of six 35-meter maximal running performance with a 10-second recovery between each run. Running time during each effort was recorded to determine peak power (PP), mean power (MP) and fatigue index (FI); and blood samples were collected after each test to determine lactatemia ([Lac]). RESULTS: PP (763.1 ± 87.2 W) and MP (621.6 ± 68.1 W) were higher in RASTST than RASTSCG (PP = 667.3 ± 67.0 W e PM = 555.9 ± 74.7 W), while [Lac] measured during RASTST (7.3 ± 1.8 mmol.L-1) was lower than the one measured in RASTSCG (9.9 ± 3.2 mmol.L-1). However, the FI did not statistically differ (RASTST = 32.5 ± 8.3%; RASTSCG = 34.1 ± 6.6%). Significant correlations were observed between MP values (r = 0.90) and [Lac] values (r = 0.72). CONCLUSION: We can conclude that the RAST variables are affected by floor surface and footwear, with higher values being observed during RASTST condition

Palavras-chave : anaerobic capacity; lactate and soccer players.

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