JOINT MOBILZATION
Joint Mobilization is a technique used to increase the range of motion of an injured limb. It is also used to align the articulating surfaces of a joint and to reduce joint play.
To understand the concept of joint mobilization, it is important to understand the types of movements a joint can perform. The first types are called physiological movements such as flexion, extension, abduction and adduction. The second type of movements, which is the principle on which joint mobilization is based, are accessory movements such as spins, rolls, and glides. Here are their definitions:
Spins- rotation of a segment around a stationary axis. An example of this is the radioulnar joint
Glides- specific point on one articulating surface comes in contact with many points on another
Roll - Many points on one articulating surface comes in contact with many points on another
The key principle of joint mobilization is known as the concave-convex rule. The rule states: If a concave surface is moving on a convex surface, then the glide will occur in the same direction as the roll. If a convex surface is moving on a concave, then the glide is in the opposite direction of the roll.
Below are some examples on how glenohumeral joint mobilization techniques.
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