Men Lifting Weights (IMAGE) University of Missouri-Columbia Caption The bone mass of the whole body, lumbar spine and hip bone significantly increased among men who completed six months of a weight-lifting program. Credit Vernon Cunningham, US Air Force. This image or file is a work of a US Air Force Airman or employee, taken or made as part of that person's official duties. As a work of the US federal government, the image or file is in the public domain. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.