STARTING POSITION:
You need to place a bench behind your back. Place the dorsum of your right foot behind you on the bench and the left foot in front of you. Contract your pelvic floor and core.
MOVEMENT:
Bend your knees and slowly lower your body down until your right knee touches the floor. Raise your arms and move them towards the left side until you feel the stretch. Maintain the stretch during the required time and then do it with the other leg.
TIPS: You should feel the stretch of the muscles but not pain.