A client came to me after he had back surgery and found he always had back pain and tightness. He was unable to do athletics or activities he had done in the past. I massaged him and used the CHI machine, starting at the coccyx and up the spine; treated about 20 minutes. He was able to return to athletics (softball) and is pain-free. He’s been my patient 2 years and was impressed. He started feeling relief right away.