A person who is hyper-mobile has increased range of motion in their joints.This can effect both their limbs and spinal joints.
The passive constraints around the joints (ligaments and capsules) are long and loose providing minimal limitation to the range of movement available at the joints. Hyper- mobile people need to have good dynamic control of their postural muscles to provide the necessary support around the joints. It is often difficult for a hyper-mobile person to find and maintain an efficient posture leading to postural pain. The lack of joint constraint predisposes the joints to injury during activity because of the large, poorly controlled motion available at he joints.
Problems often first appear in late adolescence coinciding with a decrease in physical exercise due to work and life.
Physiotherapy can be very useful in establishing good postural habits and focussing on dynamic muscle control and endurance to help protect the joints.