concentration curl
Targeted muscles: brachialus, biceps
Set up:Sit at the edge of a bench or on a stability ball. Keeping your feet flat on the ground, hinge forward from your hips to bring your torso 45 degrees to the floor. Hold a dumbbell in your right hand, placing the back of your upper arm on the inside of your right thigh.
Action: Flex your elbow, to draw the weight toward your shoulder; keep your upper arm motionless as your curl. Slowly extend your arm toward the floor without locking your elbow to keep a concentration on the muscle. Finish your set, then repeat on your left. Do three sets of 12 reps on each arm.
Oxygen Magazine