# Portable Ultrasound-Based Device for Detecting Older Adults’ Sit-to-Stand Transitions in Unsupervised 30-Second Chair–Stand Tests

> Research article (Sensors, 2020) · cited 12× · AI/ML

**Wikidata**: [openalex:W3014285471](https://www.wikidata.org/wiki/openalex:W3014285471)  
**Source**: https://4ort.xyz/entity/portable-ultrasound-based-device-for-detecting-older-adults-sit-to-stand-transitions-in-unsupervised-30-second-chairstan