How to Assess and Improve Shoulder Overhead Mobility

There are 4 main components of getting full overhead shoulder mobility with optimal mechanics. These include:
1. Lumbo-pelvic control: poor motor control here will result in excessive extension of the Lumbar spine & Rib flare, which will give you a false sense of achieving full shoulder elevation.
2. Thoracic extension: THIS IS WHERE YOU WANT SPINE EXTENSION, the thoracic spine is responsible for 20 degrees of arm elevation, without extension here the scapula will not move properly.