Ab Trainer Bicycling
Abdominal Muscle Exercises
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Lie face up on floor, legs straight in front and neck resting on pad. Place elbows on pad, grip bar, or place hands on bar above head. As you crunch up, bring the right knee in a relaxed bent position in toward your chest (exhaling as you do so). As you roll down, bring the left knee in a relaxed position toward your chest. Your legs should be moving as if you are riding a bicycle.