Fig. 1

Representative placement of ultrasound transducer and visualization of machine learning algorithm. A Ultrasound transducers were attached to each limb of the participant with a 3D printed cuff and secured with self-adhesive Coban wrap. Ultrasound data was streamed directly from the Terason ultrasound system to a secondary computer for storage and offline analysis. B Spatiotemporal tissue deformations of each tested motion were filtered and scaled to create a feature set for the KNN algorithm. This supervised algorithm uses the known labels of the nearest known samples to classify an unknown sample