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Muscle Testing Table

Published:  February 13th, 2014

Muscle and Range of Motion Testing guidelines have recently been clarified in the AMA CPT Assistant.  “Given the subjective aspect of manual testing, the use of consistent test positions, including accurate joint placement and avoiding the use of compensatory muscle actions, must be integrated into the test in order for MMT to be utilized as an effective evaluation tool.”  -AMA CPT Assistant, August 2013

The following table should be used as a standard for Manual Muscle Testing procedures:

Table 1. Manual Muscle Testing Procedures

Key to Muscle Grading
 Function of the MuscleGrade
No Movement No contractions felt in the muscle 0 0 Zero
Tendon becomes prominent or feeble contraction felt in the muscle, but no visible movement of the part T 1 Trace
Test MovementMOVEMENT IN HORIZONTAL PLANE   
Moves through partial range of motion 1 2- Poor-
Moves through complete range of motion 2 2 Poor
ANTIGRAVITY POSITION 3 2+  
Moves through partial range of motion
Test Position Gradual release from test position 4 3- Fair-
Holds test position (no added pressure) 5 3 Fair
Holds test position against slight pressure 6 3+ Fair+
Holds test position against slight to moderate pressure 7 4- Good-
Holds test position against moderate pressure 8 4 Good
Holds test position against moderate to strong pressure 9 4+ Good+
Holds test position against strong pressure 10 5 Normal
Modified from 1993 Florence P. Kendall. Author grants permission to reproduce this chart.

From: NIEHS [National Institute of Environmental Health Sciences]. IMACS [International Myostitis Assessment & Clinical Studies Group] FORM 04: Manual Muscle Testing Procedures. Available at www.niehs.nih.gov/research/resources/assets/docs/muscle_grading_and_testing_procedures.pdf. Accessed July 16, 2013.

 

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