Negative pause pull ups! These are a controlled tempo exercise. In this video I am using a wide neutral grip. The temp is a 2 count up, pause at top for 3 seconds and a 3 second negative down.
You want to make sure that your shoulder is engaged and your scapula is pulled back and down. Your focus should be pulling your chest up till your clavicle (color bone) touches the bar.
If you are unable to do your own body weight incorporates a band to help assists the movement. Make sure when you lower yourself that your shoulders are down.
If your shoulders are touching your ears they are not engaged and you will put strain on your shoulder gurtal and could cause injury to the rotator cuffs