When we think of core exercises, standard moves like situps and crunches are often a go-to. But working the side body is an important piece of a well-rounded core routine that is sometimes overlooked.

Denise Austin just shared a motivational workout video on Instagram. The 66-year-old demonstrated a “three-minute” workout to strengthen abs. The fitness star demonstrated a total of five simple moves ...

For on-demand core workouts — plus fitness challenges, meal plans and inspiration — download the Start TODAY app! When we think of core exercises, standard moves like situps and crunches are often a ...