Manual muscle testing (MMT) in the ICU using the Medical Research Council (MRC) Scoring system for occupational therapy.
Score
Description
0
No visible contraction
1
Visible muscle contraction, but no limb movement
2
Active movement, but not against gravity
3
Active movement against gravity
4
Active movement against gravity and resistance
5
Active movement against full resistance
*Adapted from Schweickert and Hall. ICU-Acquired Weakness. Chest 2007;31:1541−1549.
Measurement (Short version for ICU)
Each Upper Extremity: shoulder abduction, elbow flexion, wrist extension
Each Lower Extremity: hip flexion, knee extension, dorsiflexion[1]Adler, J., & Malone, D. (2012). Early mobilization in the intensive care unit: a systematic review. Cardiopulmonary physical therapy journal, 23(1), 5.
Scoring
Minimum score: 0 = quadruplegia
Maximum score: 60 (4 extremities, 3 movements per extremity, 15 points per extremity.
Adler, J., & Malone, D. (2012). Early mobilization in the intensive care unit: a systematic review. Cardiopulmonary physical therapy journal, 23(1), 5.
