As the name suggests, a dislocated shoulder is where the head of the upper arm moves out of its normal anatomical position to sit outside of the shoulder socket joint.
Some people have more flexible Joints than others and will, unfortunately, have joints that move out of position without much force. Other people might never dislocate their shoulders unless they experience a traumatic injury that forces it out of place.
Frozen shoulder, also known as adhesive capsulitis, is a condition affecting the joint capsule of the shoulder. It is characterized by inflammation of the capsule, leading to pain and stiffness with shoulder movements.
Shoulder instability is a term used to describe a weakness in the structures of the shoulder that keep the joint stable, often leading to frequent dislocations. As one of the most flexible joints in the body, the shoulder maintains stability through a balance of support between the dynamic structures (muscles and tendons) and static structures (ligaments and joint shape).
Chronic ankle instability, as the name implies, is a chronic condition of instability affecting the ankle and it’s surrounding structures. It usually develops after a severe ankle sprain. However, some people are born with less stable ankles; these individuals are generally extra flexible throughout their bodies. Approximately 20% of ankle sprains lead to chronic ankle instability due to the resulting changes in ligament support, strength, postural control, muscle reaction time and sensation.