Lie faceup with legs together and extended straight out. Place right hand lightly on back of head and extend left arm straight back overhead, holding a 3-pound weight (A). Bring legs up to 90 degrees; crunch upper and lower body while lifting left arm up and then lowering it forward until it's in line with torso (B). Return to start. Do 30 to 40 reps; repeat on other side. Keep neck neutral so you don't strain it.
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