Hi Dear,
Welcome to HCM.
Understanding your concern. As per your query you are wondering if passive exerciser advisable for chronic shoulder and back pain . Well there can be many reasons for symptoms you mention in query like muscle spasm ,
cervical spondylosis, TMJ problem , nerve compression , ear infection or heart problem like angina . I would suggest you to consult orthopedic surgeon for proper examination and treatment .And it is very important to discuss about this exerciser with orthopedic surgeon , Doctor will decide after proper examination . Because sometimes they can complicate the condition , so do not use without advise of expert . Doctor may order CT scan , MRI along with nerve conduction test and physical examination to confirm the diagnosis . Doctor may prescribe
muscle relaxant , anti inflammatory , nerve supplement along with
physical therapy along with particular stretching exercises. For now stay calm , take ibuprofen , apply warm compresses to shoulder and arm , do light stretching exercises under expert or
acetaminophen for pain and take proper rest. Doctor may also refer you to
dentist for TMJ problem .
Hope your concern has been resolved.
Get Well Soon.
Best Wishes,
Dr. Harry Maheshwari