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Want Stronger Arms and a Toned Core? This 20-Minute Circuit Can Help Get You There
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Butterfly Sit-Ups

  • Lie on your back, and open your legs into a diamond shape with the soles of your feet pressed together and your knees wide. Extend your arms overhead.
  • Inhale and squeeze your core as you roll all the way up to a seated position, touching your hands to your toes.
  • Exhale as you lower back to the starting position. Keep your core engaged and move with control, instead of flopping down on the mat.
  • Continue this movement for 40 seconds.
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