You are about to perform a manual muscle test of the supernator. After positioning the patient supine, what position should you place the patient's elbow in to isolate the supinator and minimize the actions of the biceps?
1. 30° of elbow flexion
2. 60° of elbow flexion
3. 90° of elbow flexion
4. Terminal elbow flexion
The solution will be posted in a few days.