Hello, As you met an accident where you were diagnosed with biceps tendinopathy and supraspinatus tenosynovitis I wonder why the shoulder functions have not resumed even after 6 months. Have you taken an MRI of the shoulder? If so what was the reports? if not then please do take it. I suspect this to be a rotator cuff injury. Because any injury happening to the shoulder with two muscle injury falls in the group. The rotator cuff muscles are weak. You need to workout behind it. Shoulder function can resume only when we have good range of motion in passive for all the movements and also if we overcome the pain. In fact, I should share one of the rotator cuff injury cases of mine. It was a case of 65 years old female with the above mentioned injury. No passive or active shoulder movements. But to overcome the problems, i use to make the muscle tire by active ROM exercises and no weights. Just gravity assisted and gravity resisted ones. In fact all the shoulder movements like - flexion, extension, rotation, abduction, adduction and circumduction. At the end of the 12th week, she had the best movements without any kind of pain and shoulder was much stronger than before. I will advise you to look for a competitive physiotherapist who can help you get the best outcome score. If left untreated it will lead to other pathologies which are not accepted. Hope I have answered your query. Let me know if I can assist you further. Regards, Jay Indravadan Patel, Physical Therapist or Physiotherapist