7 Moves For Rock-Hard Abs That Aren't Sit-Ups

Double Leg Stretch

This exercise is a part of Pilates abdominal workout routines. Settle your butt and lean back at with both legs hugged into your chest. Stretch both legs out, inhaling as you do. Tense your abs to support your back. Slowly exhale and draw your legs back into a hugging position. Contract your core as you curl in. Repeat 6 times. 

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