Kneel on the floor, legs slightly apart with the resistance band secured under your knees. Wrap the loose ends around your hands or grasp the handles with palms facing forwards.
Concentric contraction: Breathe out. Press the resistance bands upwards in a controlled manner but don't fully lock the elbows.
Eccentric contraction: Breathe in. Lower the arms slowly and in a controlled manner. Lower the arms enough to ensure adequate anterior deltoid stretch. Repeat until the desired repetitions are