STARTING POSITION:
Select the appropriate strength of the band. Sit down on the floor with your feet together in front of you and your knees slightly bent. Grab the band with a neutral grip and place it behind your feet to tighten it. Make sure your torso is at a 90º from your legs. Contract your pelvic floor and core while keeping your chest up. The band should have tension from the beginning of the movement.
MOVEMENT:
Pull the band back towards your torso retracting your shoulder blades while you exhale until you touch the ribs. Return to the starting position in a smooth movement.
TIPS: Make sure your torso doesn't move in any moment.