Correlação de comportamentos do teste de força isométrico e da temperatura da pele dos membros inferiores de jovens atletas de futebol em treinos consecutivos

Abstract

The forms of load control in training have different methods to be carried out. In football, with the calendar congested even in the youth categories, it is increasingly necessary to find methodologies that suit the reality of each club. Studies state that strength production decreases with the increase in muscle damage induced, whether by training or games. Therefore, isometric strength tests and hot zone areas in infrared thermography could be forms of load control, helping to prevent injuries and predict training. Therefore, the objective of this study was to verify whether the rate of force production (TPF) and the maximum isometric strength (FMI), measured using the load cell, would have a relationship with the hot zone area of the athletes during a period 5-day daily follow-up. Twenty-one athletes from the youth category of a club in the first division of Brazilian football, aged 18 to 20, were exposed to their daily football and strength training for 5 consecutive days, with data collected on all these days, before training, the FMI, the TPF and the heat area of the lower limbs. The highest heat zones, known as Hot Zone (ZQ), were taken into consideration for this study. The athletes' TPF and FMI were measured every day after collecting from the heat area. Descriptive analyses and normality tests were performed for the variables ZQ, FMI and TPF. The data analyzed indicated that there are no statistically significant correlations between the variables ZQxFMi, as well as between ZQxTPF. These results suggest that, within the sample studied, variations in ZQ are not directly related to variations in FM or TPF. This information can help monitor the internal response to load through infrared thermography in physiology departments at football clubs and to carry out training periodization by physical trainers.