A Wrist Band Type Muscle Activity Sensor (IMAGE) University of Tokyo Caption Electrodes, wires, and via holes can be printed by a single step printing process. The muscle activity sensor was produced by printing once on each side of the material's surface. Credit (c) 2015 Someya Laboratory Usage Restrictions For research promotion purposes only 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.