abdominal crunch exercise
Position for the abdominal crunch exercise 1. Lie on the floor with your arms across your chest or your hands clasped behind your head. 2. Keep your feet on the floor or raise them. Execution of the abdominal crunch exercise 1. Tighten your abs and slowly curl your shoulders up off the floor. 2. Curl your shoulders up toward your knees until your shoulder blades come one to two inches off the floor. 3. Hold this position for a second before slowly returning to the starting position. 4. Repeat.
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