Image of Muscle from CT Study (IMAGE) University of California - Davis Health Caption A new study of CTs shows that reduced size and density of core muscle (highlighted in red) as shown in the lower image is associated with frailty and reduced lifespan in hip-fracture patients. Credit Copyright UC Regents 2017 Usage Restrictions Include "copyright UC Regents" 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.