Horário do dia e desempenho em uma partida simulada de futebol: estudo experimental.

Abstract

When we talk about a sport practiced worldwide, it becomes very important to study the variables that may influence the performance of its practitioners. The time when the sport is played and the physical effort involved in its execution may influence performance. The present research aimed to verify whether the time of a simulated soccer match can significantly influence the technical and physical performance of amateur soccer players. Twenty men with ages between 18 and 26 years old, soccer players for at least 3 years, were recruited. After going through familiarization, physical evaluation and also answering a questionnaire to evaluate their chronotype, they were submitted to physical (speed) and technical (passing and dribbling accuracy) performance tests, executed before, during and after a 90 minutes protocol, that simulates a soccer match, with jumps and displacements in different directions and intensities, with and without control of the ball. Randomly divided into two groups, 10 individuals performed the protocol in the morning (8:00 am) and the other 10 in the afternoon (5:00 pm). The subjective perception of effort was statistically different between the periods (8.6 ± 0.9 at the end of the protocol in the morning and 7.0 ± 1.6 at the end of the protocol in the afternoon), however, the caloric expenditure, heart rate and physical and technical performance did not show significant differences between the periods. Therefore, under the conditions of the present study, the time of day influenced the subjective perception of effort, but not the physical and technical performance and the physiological responses, resulting from the execution of a protocol that simulates a soccer match.