Muscle worked: biceps
Get into an athletic position, legs hip-width apart and knees slightly bent, and hold one end of the band in each hand with your palms facing outward. Bend your elbows, curling your hands toward your shoulders while keeping your elbows close to your body. Lower your arms slowly, resisting the pull of the band as you return to the starting position. Do 15 to 20 reps, maintaining good posture with dropped shoulders and a straight back. Use your core to hold yourself steady.