adjust your resistance so that your arms are tired by the 15th repetition. Not exhausted, just feeling it. By the 3rd set your 15th rep should be difficult! Increase resistance as you get stronger.
Never over do it! Check with your DR. if you have any doubts about this exercise.
Step1
Anchor resistance band up high. Position arms against torso. Bend elbows slightly above 90 degree angle.
Step2
Extend the arms straight down. Exhale.
Step3
Slowly return to the starting position and repeat. Don't allow your muscles to completely relax before repeating movement. Do 3 sets of 15 repetitions each.
Enthusiast 
