20-Minute HIIT YouTube Workouts That’ll Test Your Endurance
Free 20-Minute HIIT YouTube Workouts That’ll Test Your Endurance
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Get ready to sweat through 20 bodyweight and dumbbell exercises — 45 seconds on, 15 seconds off per move. Fitness influencer Maddie Lymburner doesn't repeat any of the exercises, so you'll never be bored.