A shoulder workout does not have to be long in order to be effective. However, when changing your form, it can end up exercising your muscles in a way that is different from the usual which would have a different impact on your body.
It is important to note that the deltoids are not the only muscles that control the shoulder. They are the most visible when it comes to size so many refer those as the shoulder. However, there are 17 muscles that attach to the scapula or shoulder blade that have a direct impact on the actions of the shoulder.
When you change the position of your body when performing your usual shoulder exercises, you can involve the muscles of the upper back and shoulder girdle. Check out the video below to learn more about these moves!