Which of the following is a performance-based outcome measure used to assess strength?

Which of the following is a performance-based outcome measure used to assess strength?

• A. Goniometers
• B. AROM
• C. PROM
• D. MMT

Answer: (D)

Manual muscle testing directly measures how much force a muscle can produce by having the patient perform a resisted movement and the examiner grades the effort, typically on a 0–5 scale. This direct assessment of force production is what makes it a performance-based measure of strength. Goniometers and ROM tests (active or passive) quantify movement range, not the muscle’s ability to generate force. So while ROM tests tell you how much movement the joint can achieve, they don’t isolate strength, making manual muscle testing the appropriate choice for strength assessment.

Manual muscle testing directly measures how much force a muscle can produce by having the patient perform a resisted movement and the examiner grades the effort, typically on a 0–5 scale. This direct assessment of force production is what makes it a performance-based measure of strength. Goniometers and ROM tests (active or passive) quantify movement range, not the muscle’s ability to generate force. So while ROM tests tell you how much movement the joint can achieve, they don’t isolate strength, making manual muscle testing the appropriate choice for strength assessment.