Want to give your core, posterior chain, shoulders and your scaps a good working over at the gym? Then it’s time to add the step-in lunge and row into your workout arsenal. Recently I reached out to Irv Rubenstein, Ph.D., ACSM-EP, NSCA-CSCS/CSPS/CPT and the president of Steps Fitness, a Nashville-based personal training center, to share his favorite […]