Lie on the floor or a bench, holding the dumbbell with an overhand grip.
1. Inhale and raise your arm to about an 80 degree angle.
2. Immediately lower the weight, exhaling as you complete the movement. Repeat the next repetition.
Notes:
Unlike standing raises, this exercise involves the deltoids differently, concentrating the effort at the beginning of the movement.
Thus, this exercise emphasizes the supraspinatus, mainly at the beginning of the movement. You can vary the starting position to place emphasis on all of the deltoid heads.