Both papers were retracted on June 26 by the editors of the International Journal of Exercise Science (IJES) with the agreement of last author Steven Devor, a former professor at The Ohio State University. Both have been retracted because the studies were carried out without proper IRB approval.
Earlier in June, another paper from the CrossFit study — which is still at the center of a legal battle between CrossFit and a competitor in the market for exercise instructor licensing — was retracted by the Journal of Strength and Conditioning Research (JSCR) for improper IRB approval. Devor resigned from OSU the day after the first retraction.
Only one of the newly retracted papers had anything to do with the CrossFit study: Published in April 2014, this paper suggested that the so-called “paleo” diet — a diet focused on meat and vegetables — is associated with “unfavorable” changes in cholesterols and other blood-based cardiovascular biomarkers. In addition to following the diet, subjects also participated in a CrossFit exercise program. Continue reading Researcher who tangled with CrossFit loses two more papers