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This 45-Minute HIIT Workout Guarantees an Exercise High
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4

Mountain Climber

  • Start in a high plank position, shoulders over your wrists and body in one straight line. Pull your core toward you spine.
  • Drive your right knee forward toward your chest, engaging your core as you move. Keep your shoulders over your wrists.
  • Quickly switch legs, creating a running motion as you drive your left knee toward your chest.
  • This counts as one rep. Complete as many reps as you can with proper form in 20 seconds.
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