Physiotherapists in Dartford treat many different conditions including the issues profiled below.

Discs and Height

Physical activities change the nature of the intervertebral discs throughout the day and night. The volume and the height of discs can change by up to twenty percent, with a person.s height varying by anything from fifteen to twenty five millimetres. Most of the change in height happens during the first hour after getting up as the body weight loading is applied to the spine. During the night the opposite happens with the disc being unloaded so it sucks in water from the tissue around it until it reaches a balance of pressures on both sides.

This daily cycle of pressure variation changes the water content of the disc regularly and may be part of the explanation as to why back pain sufferers have more pain in the mornings due to the increased tension present in the disc complex. Resting or performing heavy work can cause changes in the hydration of the disc, carrying a twenty kilogram backpack for three hours has been shown to reduce the volume of the discs by 4.5 percent. The amount of water content in the disc does not achieve a specific resting level; it depends on how much loading is going on and for how long.

The Shoulder

The human shoulder is a design of great functional ability and ingenuity, designed entirely around placing our hands in the places we want them to be. The hand is the tool with which we connect with the world and we need to be able to place it in a great variety of positions so we can manipulate objects. The shoulder contributes to a very large extent to our ability to do this and to achieve this goal it has an extremely large range of motion permitting great flexibility. However, in satisfying the requirement for flexibility it sacrifices stability.

To allow the large range of motion the shoulder is designed with a relatively small socket and a very large ball, the head of the arm bone. The shoulder capsule, the fibrous ligamentous bag which surrounds and supports the joint, is relatively lax and contributes little to stability. The nervous and muscular systems have the job of keeping the large humeral head balanced on the small glenoid cavity (shoulder socket). The large shoulder muscles are more concerned with gross movements of the shoulder, and it is the rotator cuff muscles which perform much of the stabilising work of the joint.