When your arm moves inside a loose shirt, the fabric does not simply follow along. It ripples, folds, and shifts in ways that exaggerate motion.

The Butterfly Trackers operate on inertial measurement units, translating small changes in orientation and acceleration into precise movement data. Unlike optical tracking systems, which depend on ...

By Dr. Liji Thomas, MD By turning so-called “motion artefacts” into valuable data, researchers reveal that the natural dynamics of loose garments may hold more predictive power than tightly strapped ...