This lunge helps stretch the glutes of your forward leg. If you have knee issues, you may not want to go as deep into this stretch.
  1. Stand with feet hip-width apart, arms by sides.
  2. Lunge right leg forward, bending right knee 90 degrees, leaving left leg straight.
  3. Lower your hips down as far as possible; hold for 30 seconds.
  4. Stand back up, switch sides and repeat.