Jan Hartvigsen worked in clinical practice as a chiropractor from 1989 to 2001. In 2006, he was appointed Professor and Research Leader at the Department of Sports Science and Clinical Biomechanics at the University of Southern Denmark. He has published over 180 international peer-reviewed scientific papers, and in 2016, he was rated as the world’s number one expert in “Musculoskeletal Pain” by Expertscape.com. He was the Deputy-Chair of the Lancet Low Back Pain Series Working Group that published a landmark series of papers in The Lancet in 2018.