While there already are body movement-tracking systems, many of them incorporate cumbersome wearable devices, or require the person to move about in front of an array of cameras. A new technology, however, gets the job done simply using threads placed flat against the skin.
Developed at Massachusetts’ Tufts University, the experimental system incorporates threads that are coated in an electrically conductive carbon-based ink. As those threads bend in response to externally applied mechanical strain, their conductivity changes. Therefore, by monitoring those changes, it’s possible