# Digital Biomarkers of Physical Frailty and Frailty Phenotypes Using Sensor-Based Physical Activity and Machine Learning

> Research article (Sensors, 2021) · cited 57× · AI/ML

**Wikidata**: [openalex:W3193112103](https://www.wikidata.org/wiki/openalex:W3193112103)  
**Source**: https://4ort.xyz/entity/digital-biomarkers-of-physical-frailty-and-frailty-phenotypes-using-sensor-based-physical-activity-and-machine-learning