Resfriamento da superfície da pele minimiza perda de desempenho aeróbio de jogadores de futebol amador

Abstract

The aim of this study was to analyze the effect of different cooling strategies on jump, sprint and aerobic performance of amateur soccer players in warm environments (above 28° C). Ten amateur soccer players were submitted to the experimental protocol consisting of a sequence of tests (jumps, sprints and Yo-Yo IR1 aerobic test) performed in two 45-minute halves, separated by a 15-minute interval in which the cooling strategies were applied [Fan (Vent) and wet towel (Tow)] and control (Con). The experimental protocol was conducted in three sessions, with a seven-day interval between them. The demonstration and habituation for the experimental protocol, was conducted one week before the first session. In the first session, the players were randomly assigned to the Vent (n = 4), Toa (n = 3) and Con (n = 3) groups. In the second and third sessions, the athletes were submitted to the other experimental conditions. By executing the cooling strategies, skin temperature was significantly reduced (p <0.001) and performance in the Yo-YO IR1 test was maintained for the Vent and Toa groups, unlike for the Con group (p> 0.05). The skin temperature was inversely correlated to performance in the Yo-YO IR1 test (r = -0.414; p = 0.013). Moreover, the thermal sensation was directly correlated to the jump power (r = 0.386, p = 0.019) and inversely correlated with the recovery perception (r = 0.373, p = 0.023). The execution of cooling strategies between the two 45 min sections have contributed to reduce of the skin temperature and minimizes loss of aerobic performance in soccer players.