The AB Trainer Club Pro is the most effective exercise equipment for training your abdominal muscles without straining your neck and lower back. There are various abdominal exercises which can be performed with these products to help you obtain "6-pack abs", a few of which include: Basic Crunch, Oblique Crunch, Raised Knee Crunch and Oblique, Raised Straight Leg Crunch, Bicycle Crunch, Double Crunch, Scissor Crunch.