| Isometric Muscle Contraction
This is the contraction of a muscle without movement at the joint. There is no change in length but tension increases.
Isotonic Muscle Contraction This is the constant loading of a muscle with variable velocity.
Isokinetic Muscle Contraction A muscle contraction in which a constant joint angular velocity is maintained by accommodating resistance.
Active Assisted Movements An exercise in which part of the activity is undertaken by a patient and part by the therapist or other equipment eg: walking stick.
Active Movement A movement performed by a person unaided by any external factor or influence.
Abnormal Movement Pattern Abnormal movement patterns arise for varied reasons, typically:
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Plyometrics This is an exercise where by eccentric loading of a muscle in a stretch position is followed by powerful concentric shortening. In shoulder rehabilitation this is used months after surgery for active people in the form of throwing/catching/bouncing a ball of increasing weight.
Passive Movement A movement which is performed by a force, which can be another person or a machine, i.e. continuous passive movement machine (CPM) but does not require voluntary activity of the patients own muscles. The uses for passive movement are listed below:
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