Concentration curl

The concentration curl is especially good for targeting your biceps and excluding all other muscles.
Be careful if you’ve had elbow injuries or are prone to lower back discomfort.

Getting set
Hold a dumbbell in your right hand, and sit on the edge of a bench or a chair with your feet a few inches wider than your hips. Lean forward from your hips, and place your right elbow against the inside of your right thigh, just behind your knee. The weight should hang down near the inside of your ankle. Place your left palm on top of your left thigh. See photo A.

The exercise
Bend your arm and curl the dumbbell almost up to your shoulder (see photo B), and then straighten your arm to lower the weight back down.

Do’s and don’ts

• DO bend forward from your hips instead of rounding your lower back to lean forward.
• DON’T lean away from your arm as you lift the weight up to help get better leverage. (Hey, that’s cheating!)

Other options

• Slant biceps curl: Sit on a bench with the back inclined a few inches. Lean back and curl the weight up. You can do this one hand at a time or with both hands together and with a twist as you curl upward or without a twist.
• Standing concentration curl: Hold a dumbbell in one hand. Stand alongside a flat bench, lean over, and place your other hand on top of bench. Let the arm holding the weight hang straight down to the floor. Bend your elbow so the weight moves up and in toward your armpit, and then slowly lower it back down.