You are testing the biceps strength in a young man following a spinal trauma from a motor vehicle accident. He cannot lift his hand upward, but if the arm is abducted to 90 degrees, he can then move his forearm side to side. This would represent which muscle strength grading?

Question

Quizplus · Accepted Answer

The ability to move an extremity, but not against gravity, represents a strength of 2 out of 5. Zero represents no muscular contraction detected (not even a "flicker"); one represents a contraction but no movement of the extremity; three means that the extremity can move against gravity but not against resistance; four means perceived weakness but the patient can oppose some resistance; and five is normal.

You Are Testing the Biceps Strength in a Young Man