This abdominal workout focuses primarily on the rectus and transverse abdominis to really make those abs pop. The core is the powerhouse of the body. Each movement, if done properly, engages support from the core to stabilize; therefore the stronger the core the better a person can complete other muscle group movement, which leads to better results. Training the transverse abdominis draws in the area between the abdomen giving you those deep cuts.
Ab roll outs are extremely beneficial at providing functional core support. The key is to
keep your core activated and not arch the lower back, while keeping the stress load on the abs at extension. Hanging leg raises are a favorite of mine because they really
engage the lower abdomen. Make sure and focus on drawing in your core and contracting to lift your legs, not raise the legs from the quads and hip flexors.
Crunches should focus on abdominal contractions and not just simply getting through. I see way too many people using their traps, neck, and upper back to pull themselves up. Slow down and squeeze those abs. Planks are an extremely great source for functional core strength. I make sure each one of my clients can hold at least one minute anytime during the workout. Make sure the lower back is flat and you constantly contract during the plank to strengthen core.
Combine these ab exercises with a healthy diet to get that shredded six pack in less time than you think.