Start controlled, finish fast. This interval workout builds aerobic power and pushes your top-end speed 💨 Here’s the breakdown: 🏃‍♀️ 10:00 @ Level 3 (controlled push) 😮‍💨 Rest 10:00 🏃‍♀️ 10:00 @ Level 4/5 (strong to borderline redline effort) Focus on maintaining pace and posture, especially in that second interval. Who’s ready to test their engine? #KStoneFitness #RunTraining #IntervalWorkout #CardioDay #EngineBuilding #PacingStrategy #TrackWorkout