This video--Neck Strengthening and Physical Therapy-Neck Sit-Ups--discusses physical therapy exercises patients can perform after neck surgery (cervical spine). These exercises are performed to strengthen the neck muscles directly. Many therapists will have patients do what are essentially shoulder exercises to strengthen the neck muscles but this only indirectly strengthens these cervical muscles. Direct neck strengthening can be done because your head is the equivalent of a 13 pound bowling ball and the perfect weight to be lifted by the neck muscles.