Just wondering, how effective are deadlifts for abs? I know that they do get worked a bit when deadlifting. A while ago, after a long break of working out, my abs were sore the day after I did deadlifts. Now I don't really feel a burn in the abs the day after deadlifts. So it makes me wonder, how effective is it for abs? Can you gain abs by doing deadlifts alone? Also, what part of the abs does it work most on?
Thanks for your answers.