How to start
* Sit on a bench and hold a dumbbell in your one hand..
* Place the dumbbell on one of your thigh keeping your legs apart.
Movement of the exercise
* Slowly move the dumbbell up towards your shoulder.
* Squeeze your biceps hard at the top of the movement, hold for 2 secs and then slowly return to the starting position.
Tips on Concentration Curl
* Do not lean backwards while the movement.
* Keep your upper arm fixed.
* Keep your shoulder relaxed.