A chiropractor cracks the upper middle back portion of a young adult caucasian male patient as he lies topless face down on a massage table in a physiotherapy clinic, closeup top-down view

massage table chiropractic adjustment upper back pain massage therapist spa massaging chiropractor physical therapist medical procedure physical therapy alternative therapy sports medicine patient human back spine backache hands touch physical injury relief recovery human spine pain receiving twist and press men relaxation care rehabilitation center two people neck human skin back lying down professional occupation press adult males young adult healthy lifestyle sport only men white people young men cracking athlete indoors sportsperson unrecognizable person