Spinal Cord Bypass (image) National Institutes of Natural Sciences Caption When turning off the computer-aided spinal cord bypass, the lower extremities which were in a relaxed state did not move even if the subject was swinging his/her arms. With the bypass turned on, when the subject swung his/her arms by his/her own will and a walking motion of the lower extremities began in rhythm to the motion of the arms. Credit © Yukio Nishimura Usage Restrictions None 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.