Manual Muscle Strength Grading Chart

Grade Percentage Description

5 (Normal) 100 Complete range of motion against gravity with full resistance

4 (Good) 75 Complete range of motion against gravity with some resistance

3 (Fair) 50 Complete range of motion against gravity with no resistance

2 (Poor) 25 Complete range of motion with gravity eliminated

1 (Trace) 10 Evidence of slight contractility with no evidence of joint motion even with gravity eliminated

0 (Zero) 0 No evidence of muscle contractility