Stand up straight with a resistance band placed firmly under your feet.
Hold one end of the tensioned band in each of your hands with your palms facing backward.
Bend your elbows to 90 degrees to assume your start position, ensuring there is moderate tension in the resistance band.
Keeping your arms by your side, slowly continue to bend your elbows, pulling against the resistance of the band. Control the movement as you lower your arms back down to the start position.
Pause, and then repeat.