I’ll get around to writing up a more detailed explanation shortly. For now, here’s a great video showing you how to do windshield wipers. It’s not an easy exercise but it will pay off with wonderous results.
https://www.youtube.com/watch?v=HvN7uGX5QP4Tags: 6 pack, ab training, abs, adominals, Conditioning, exercise, fitness, ripped abs, windshield wipers