Lightweight Dumbbell Ab 1, 2, 3 Crunch
Lay flat on floor, engage glutes (bum) and core (abs). Use your upper core to crunch your dumbbells to your left knee. Use your lowercore to crunch your left knee to chest. squeeze your bum as you reset back to lying position. Re-engage repeat the movement but this time crunch both knees, reset, re-engage, repeat again this time crunching your right knee.
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