Manual Muscle Testing is a fundamental physiotherapy assessment technique for evaluating muscle strength. The MRC grading scale provides standardized documentation of muscle power.
Formula
MRC Scale: 0 (No contraction) to 5 (Normal strength)
Normal Range
0: No contraction | 1: Flicker | 2: Movement without gravity | 3: Against gravity | 4: Against resistance | 5: Normal
Clinical Use
Neurological physiotherapy, spinal cord injury, stroke, peripheral nerve injury.
Use the Calculator
Enter patient values and get instant AI-powered clinical interpretation.