1. Is the test used a standardized MMT of the muscle or group of muscles, or is it a general test, such as "the arm test" which does not specifically test the strength of any one muscle. |
2. On how many muscles is the procedure valid? |
3. Are the starting point and the direction of force the same each time the muscle is tested? |
4. Does the tester apply the same force each time the muscle is tested, i.e. does the tester apply the force to the patient at a constant rate? |
5. Is the contact point on the patient the same each time the muscle is tested? |
6. Is the tester's hand contact with the patient the same each time the muscle is tested? |
7. Are the tester's elbow, arm and forearm in the same position for each test? |
8. Are the tester's shoulders relaxed and in the same plane each time the muscle is tested? |
9. Is the tester's body in the same position with the core muscles of his body engaged in the same way each time he tests the muscle? |