![]() Grade 2: Full range of motion, gravity eliminated.Grade 1: Visible or palpable contraction without motion.Grade 0: No visible or palpable contraction.The Manual Muscle Testing Grades has six levels (0–5): Since then, abundant research has been conducted regarding its various applications, including modifications of the original grading scale used to describe muscular strength.ĭespite these modifications, the scale that is most widely accepted is very similar to the original proposal by Lovett and Martin and was devised by the Medical Research Council (MRC) in 1943. In 1916, Lovett and Martin first described the method of manual muscle testing in newborns with infantile paralysis. ![]() MMT utilizes a standardized grading system that is determined by the ability of the tested muscle act against gravity or against resistance applied by the examiner. Manual muscle testing (MMT Testing) is the most common method by which clinicians evaluate muscle strength.
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