The effect on critical velocity of runnings with change of direction in soccer

Introduction: The aim of this study was to examine relationships between Yo-Yo intermittent recovery level 1 test (YYIR1T) performance and critical velocity determined by protocols consisting runs with a change direction straight runs. Material Methods: Twelve young soccer players voluntarily participated in (age: 17.07±0.24 years, training experience: 8.42±2.50 height: 178.58±5.76 cm, weight: 70.67±6.14 kg, body mass index: 22.16±1.59). To determine velocity, 6-, 9- 12-minute were performed maximum effort on straight-line running track direction. two linear regression models. YYIR1T players’ aerobic endurance. value the tracks compared paired samples T-test. correlation parameters Spearman’s coefficient. Results: A significant difference anaerobic distance capacity mean speed (p<0.05) found. There (p<0.05). Conclusions: Consequently, it might be said that increase energy expenditure highly affected those velocity.