Posterior step to overhead reach

Stand with your feet hip-width apart and your arms by your sides. Take a step back with your right foot, landing on the ball of your foot. Bend your left knee and lower your body into a lunge position. As you lower into the lunge, simultaneously reach your arms overhead. Pause for a moment at the bottom of the lunge, then return to the starting position by pushing through your left heel and bringing your right foot forward. Repeat the movement on the other side, stepping back with your left foot and bending your right knee. Continue alternating sides for the desired number of repetitions.