The Step-back Lunge is a multi-purpose exercise that targets balance, coordination, core stability, and strengthens the lower body muscles (quadriceps, hip, buttocks, hamstrings and calves). This movement is essential in many sports and helps us walk backward, which we may do when helping someone to move, while carrying a heavy object or getting quickly out of the way. 1. Stand tall with good posture.2. Step 2 to 3 feet back with one...