Maximize Your Barbell Bicep Curls! Inside Grip Vs. Outside Grip! (Video)

Although the shape of your biceps will be determined by your genetics, you can always build bigger arms by increasing the size of the muscle. The biceps or “Biceps Brachii” consists of two heads, the inner head (short head) and the outer head (long head). Depending on the grip used with various bicep exercises, you can actually target each head to ensure that you are in fact working both areas effectively.

via Scott Herman