MRC Scale for Muscle Strength

Muscle strength is tested by evaluating key muscles against the examiner's resistance, using grading scales like the MRC scale, which ranges from 0 (no muscle activation) to 5 (full strength).

Muscular strength is assessed systematically by applying resistance to specific muscle groups and grading the patient’s ability to move against this resistance, often using methods like manual muscle testing.

A muscle strength test tool can include dynamometers, which provide precise measurements, and manual muscle testing scales, such as the MRC scale, for evaluating muscle power.