<p> Manual Muscle Strength Grading Chart</p><p>Grade Percentage Description</p><p>5 (Normal) 100 Complete range of motion against gravity with full resistance</p><p>4 (Good) 75 Complete range of motion against gravity with some resistance</p><p>3 (Fair) 50 Complete range of motion against gravity with no resistance</p><p>2 (Poor) 25 Complete range of motion with gravity eliminated</p><p>1 (Trace) 10 Evidence of slight contractility with no evidence of joint motion even with gravity eliminated</p><p>0 (Zero) 0 No evidence of muscle contractility</p>