Sprinting for 15 minutes (5-10 rounds of 10-20 seconds on, 60-90 seconds off) is more effective for fat loss and muscle growth than 20 minutes of fasted cardio because: 🔗it creates a significant metabolic disturbance 🔗it uses fat and glucose for energy (aka stored body fat and some carbs you eat) 🔗your body continues to use stored fat for energy after the session for up to 72 hours 🔗 fasted cardio burns fat only during the session, it stops as soon as you eat If you cannot run sprint because