Oblique Twists

Oblique Twists. This simple crunch exercise works the side abdominal muscles. Start by lying flat on a mat with your knees bent. Using your abs, lift your head and back toward your knees (similar to doing a sit-up). While in this position, rotate your upper torso to the right, back to the center, and then to the left for one repetition. Increase your repetitions as desired.
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