Crossover Reverse Lunge
Main muscle: Lower back
Other muscles: Glutes, Abs, Abductor, Hamstrings, Quads
Fitness level: intermediate
Category: Stretching

  1. Stand with your feet shoulder width apart. This will be your starting position.
  2. Perform a rear lunge by stepping back with one foot and flexing the hips and front knee. As you do so, rotate your torso across the front leg.
  3. After a brief pause, return to the starting position and repeat on the other side, continuing in an alternating fashion.

Source: bodybuilding.com