Learn About The Various Forms Of Therapeutic Exercise And How It Relieves Pain And Promotes Healing

By Coleen Torres


Injuries can occur for a number of reasons, such as from playing sports or being involved in an accident. When the soft tissues of the body are injured, it can result in impairment of normal movement, which may be painful and limited. Physical therapy is often needed to put the patient back on the road to recovery, and this usually involved the practice of therapeutic exercise as a means to restore strength, balance, flexibility, and range of motion.

The injured person will visit a physical therapist who will take a medical background from him or her and evaluate the ability to move in various ways. Based on this, the therapist will put together a customized therapy schedule of increasingly challenging exercises to help eliminate pain, and restore normal endurance, flexibility, and strength.

Exercises in a physical therapy program are classified by the type of movement and its effect on the body. Passive exercise applies an external force to the affected muscles, often by way of a mechanical device such as a continuous passive motion unit or manually by the therapist, these help to restore normal motions to the joints. Active exercises are those which require the patient to the work the muscles at least somewhat, possibly with assistance at first, and help improve neuromuscular control and joint movement.

Other activities are prescribed to help patients regain strength and endurance in the muscles which have been injured. This is normally added to the program once the patient can safely perform basic flexibility and range-of-motion movements without help. Progressive resistance is added to the routine at a steady rate to gradually build back lost strength in the muscles, tendons, ligaments, and bones, which is the body's natural response.

Exercises for regaining strength are generally grouped as either static or dynamic. The former are those which do not involve joint movement, with the length of the muscle fibers remaining the same since the resistance and tension are equal, rather it is the angle they are performed at which makes the difference and helps the patient increase strength, so using varied angles in practice and holding each movement for several seconds is recommended.

Dynamic exercises differs in that it does involve movement of the joints and muscles, in particular concentric and eccentric movement, which refers to a repeated shortening and lengthening of the muscle fibers that produces force and develops strength. This type of exercise can be grouped into isotonic, isokinetic, variable-resistance, and manual movements.

Isotonic movements are those which lengthen the muscle by means of an externally applied force that imposes a change on the angle of the joint. Examples include the use of free weights, ankle weights, and weight machines. Variable-resistance exercises involve limited force production by the muscles when the joints are in extreme positions of range-of-motion. There are machines to apply resistance relative to force with proper joint alignment. Manual resistance is similar except that it is performed with the therapist's assistance rather than a machine.

With isokinetic exercises, the resistance and muscle force are equal, and they are performed with a fixed speed. Specially designed fitness machines provide a level of force commensurate with the user's muscle resistance, and the balance of concentric/eccentric action and velocity can normally be adjusted as well.




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