Human-Computer Input via a Wrist-Based sEMG Wearable

Surface electromyography (sEMG) technology at the wrist represents the next groundbreaking way for people to control devices throughout their day. This non-invasive wrist device senses and interprets muscle activations that can be used as computer inputs in the form of a human-computer interface (HCI). This will enable people to control their devices “on-the-go” using simple, easy, and expressive input—without needing to shift their attention to a touchscreen or another physical input device. Given the potential of wrist-based sEMG to transform how people interact with computing devices, it’s important to understand how the technology works.

In 2024, we shared a look at our sEMG research and open sourced sEMG datasets for pose estimation and surface typing to help researchers advance the state of the art. Today, we’re releasing a white paper that provides background on sEMG, describes its potential as a new input paradigm for human-computer interaction, and explains how sEMG sensing and its device input applications differ from medical technologies and brain-computer interfaces (BCIs):

1. sEMG input technology targets widespread consumer adoption for interaction with computing devices.
2. sEMG at the wrist is a safe and non-invasive technology—it does not require implants or surgery, in contrast to some clinical EMG approaches, as well as implantable BCIs.
3. sEMG operates at the periphery and does not sense neural signals from the brain.
4. sEMG can only sense user outputs using electrical signals from muscle activations—it does not provide information back to the body.