therapist gives lady lumbar back massage

petrissage sacroiliac sacral ilium sacroiliitis back lumbar lower closeup hands spine detail health arthritis osteoarthritis inflammation inflammatory joint chronic pain discomfort physiotherapy treatment physio rehabilitation injury injured muscle muscular musculoskeletal damage body myofascial osteopathy manipulation therapeutic ache sports masseur massage massaging chiropractor chiropractic physiotherapist osteopath practitioner