The purpose of this study is to analyze the efficiency of the high-intensi-ty exercise performances of professional players during matches. Thirty professional players competed in a total of 38 matches throughout the season. 1,558 sprint efforts were recorded and subsequently analyzed. The sprint efficiency assessment tool ensured good interrater reliability (intraclass correlation coefficient, 0.892; 95% confidence interval, 0.883–0.901) and the validity of the analysis was confirmed by four experts with more than 20 years of experience in football. The total distance and low-intensity running were higher during the first half than during the second half of the season (P<0.01). The positions covering the greatest distances were full back and midfielder. High-intensity running (P<0.05) and sprinting (P<0.01) were higher during home matches than during away matches. The sprint efficiency was higher during the sec-ond half than during the first half of the season (P<0.05), but the maxi-mum velocity was higher during the first half of the season (P<0.01). Sprint efficiency was higher for the attack than for the defense and de-fensive transition situations (P<0.05). Higher duration, distance, and maximum velocity were observed for the excellent efficiency group than for the appropriate group (P<0.05). In conclusion, the findings of this study suggest that the development of effective training programs to enhance high-intensity exercise performance, such as sprinting, re-quires consideration that goes beyond simply physical speed enhance-ment to encompass situational judgment, timing, path selection, and speed regulation in an integrated way.
목차
Abstract INTRODUCTION MATERIALS AND METHODS Participants Match analysis data Study procedures Statistical analyses RESULTS Season period Positional performance Home and away matches Sprint performance DISCUSSION CONFLICT OF INTEREST ACKNOWLEDGMENTS REFERENCES