You are observing the gait of a patient who underwent a transfemoral amputation and notice marked external rotation of the prosthesis at heel strike. Which of the following would NOT contribute to the patient's gait deviation?
1. Weak hip internal rotators
2. Inadequate suspension
3. Excessive toe-out built into the prosthesis
4. The prosthesis is too short
The solution will be posted in a few days.