rotation of the shoulder inside

The rotation of the shoulder-in is the technique of the exercise:

1. Sit on the side of the lower block and grab the arm of the exerciser in hand. If it is possible to adjust the height of the block, you can perform this exercise sitting on a bench or standing.
   
2. Your arm should be bent at an angle of 90°, elbow pressed to the side, and the brush is allotted out to the handle. This will be your starting position.
   
3. Pull the lever inside, rotating the arm in the shoulder joint. During the movement the elbow must remain stationary, and the palm should describe a semicircle. Also, try not to move your arm up or down.
   
4. Slowly return to starting position.

Note: do Not use large weight to this exercise, as this increases the risk of damage to the rotatory cuff of the shoulder.