STARTING POSITION:
Select the appropriate strength of the band. Put your foot on the band, grab it with your right hand and with your elbow extended. You should use a neutral grip. Contract your pelvic floor and core while keeping your chest up. The band should have tension from the beginning of the movement.
MOVEMENT:
Contracting your biceps, fully bend your elbow supinating your hand while you exhale. Return to the starting position in a smooth movement while you inhale and alternate with the other arm. Repeat the movement for the specified amount of repetitions and then switch sides and repeat with the other arm.
TIPS: While your are doing the exercise, move only the elbow joint, make sure you don't move any other part of your body.