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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Grab a partner and put your endurance, balance, and agility to the test with two intense HIIT circuits led by multidisciplinary trainer Julie Nelson and professional hurdler and sprint hurdles champion Sharika Nelvis. All you need is one kettlebell and a towel.