Orthopaedics A pole vaulter had a fall during pole vaulting and had paralysis of the arm. Which of the following investigations gives the best recovery prognosis. A Electromyography B Muscle biopsy C Strength duration curve D Creatine phosphokinase levels 💡 Explanation A pole vaulter had a fall during pole vaulting and had paralysis of the arm. Which of the following investigations gives the best recovery prognosis. ✓ Correct Answer: A. Electromyography