Reverse Abdominal Curls

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Strengthens the transverse abdominus, helping flatten your belly and strengthen your entire core which stabizies the lumbar spine. 
Flatten your back to floor and imagine squeezing a balloon against the floor. 
Lie on your back with your legs bent, feet flat on the floor. 
Place your palms face down on the floor for support. 
Raise knees towards your chest, bending your knees. 
15 - 20 Reps x 3 Sets.