Mechanical and metabolic responses during a high-intensity circuit training workout in competitive runners.

AIM This study aimed to assess the mechanical and metabolic responses of competitive runners throughout a high-intensity circuit training (HICT) workout, designed to improve explosive strength under acute metabolic fatigue. METHODS Eight high-level endurance runners (age: 21.8±3.7 y; body mass: 61.5±5.7 kg; height: 175.2±5.2 cm; 1500-m record: 3 min 54±7… (More)