Cable diagonal raises increase strength and muscle growth in the entire shoulder region. Performing them unilaterally increases symmetry and balance throughout the shoulder complex.
Attach handle to the low pulley of a cable machine. Stand with feet shoulder width apart and your right side closest to the weight stack. Grab the handle with your left hand and allow your left arm to run diagonally across your body with palm facing inward.
Brace core and pull the handle across your body until your left hand comes completely overhead. Pause at top position and contract glutes for greater stability.
Keep working arm slightly bent throughout the duration of the exercise.
Move the handle in a controlled and smooth matter.
Work up to a weight that does not jeopardize form.