Triple Threat

  • NewsAmy Rushlow

    The Awesome Abs Workout

    Train your abs like you never have before with the next installment of Yahoo Health’s original workout series, Triple Threat. They include your deep core muscles (transverse abdominis), side abs (obliques), and six-pack muscle (rectus abdominis). Most abdominal exercises predominantly work one of these groups. “If you really want a defined midsection, you need to work all of them,” says fitness expert Adam Rosante, author of The 30-Second Body.