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Use of the Medical Research Council Muscle Strength Grading System in the Upper Extremity

2007; Elsevier BV; Volume: 32; Issue: 2 Linguagem: Inglês

10.1016/j.jhsa.2006.11.008

1531-6564

Michelle A. James,

Orthopedic Surgery and Rehabilitation

The Medical Research Council of Great Britain (MRC) system is the best known and most commonly used muscle strength grading system for manual muscle testing (MMT) worldwide. Dyck et al1 trace the development of the MRC system to the treatment of war injuries and poliomyelitis. S.W. Mitchell, a Civil War surgeon, recognized nerve damage as a cause of muscle weakness in 1872. Mitchell and M.J. Lewis were later responsible for the first known effort to grade neuromuscular signs when they classified ataxic gait in 1886.