This Video is part of the Performance Plus J Band Warm-Up Series. The Bicep Curl with Supination is a good exercise to strengthen and control Elbow and Shoulder Flexion as well as Wrist Supination. It is really useful in improving the throwing action. Commence in an athletic position with facing the bands and your palms facing backwards. Smoothly bend your arms in front of you at the same time turning your hands so that your palms are facing over your shoulders. Return slowly in a controlled manner to the starting position remembering to turn the hands so that now the palms are facing behind you. As with all the band exercises try and maintain trunk control as you perform the exercises. Best done as 3 sets of 10.