Top 10 Questions About Abdominal Exercises

Answer: When performing the basic crunch exercise lift up until your shoulder blades come off the floor. Research shows that the abdominal muscles can flex the spinal column to about 30 to 45 degrees of movement. Beyond 30 degrees, the powerful hip flexors are activated to a higher degree than the abs. Because this is a relatively small range of motion, it's helpful to perform many repetitions of the basic crunch to get a full ab workout or to add additional ab exercises.