Published: Jan 24, 2014 9:49 AM EST

FORT MYERS, Fla. - The plank is a static strength exercise that could be called a "pre-push-up."  It provides more three-dimensional activation that strengthens the core, shoulders, hips -- even improving your balance if you do variations with your arm or leg.  WINK News Fitness Expert Mike Drumm talks about the benefits and demonstrates some great variations of this go-to core exercise.