Box Step Ups, a good start to your leg routine. #boxstepups #exercise #southwestflorida #marcoisland #determined #womenwholift #workit #fitfluential #fitfluentialambassador #fitnessambassador Great way to start a leg workout! A video posted by April Decheine (@skinnyover40) on Oct 24, 2015 at 9:24am PDT This workout is great for your booty and your lungs. Stepping up one step and pulling that knee up to your chest 20 times is a great move to add into your workouts a few times a week.  Here are some of the benefits of doing this move. Cardio – When I was in high school step aerobics came out, gliding up just one step over and over really…