Are crunches the best exercises for abs?
– I don’t recommend the traditional feet restrained crunch. This is simply because it’s not the greatest workout for the abdominal muscles and puts an unnecessary and unwelcome strain on the lower back. Most of the work during a crunch is not done by the abs but by the psoas muscle which is a hip flexor muscle. It’s only towards the end of the movement that the lower abs do any work.
