Quadriceps Exercise Critical After Knee Replacement (video) University of Delaware Share Print E-Mail Loading video... Caption Lynn Snyder-Mackler, Ph.D explains the benefits of post-operative rehab involving quadriceps. The recipient of a double knee replacement talks about how it has improved his quality of life. Credit Chad Kuck, University of Delaware Usage Restrictions None Share Print E-Mail 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.