TY - JOUR T1 - Federated Continual Learning Framework for Adaptive Maintenance of Fall Risk Prediction Models across Aging Populations Using Wearable Accelerometer Data from Smartwatches AU - Igor Petrov AU - Alexei Smirnov JF - Journal of Artificial Intelligence for Healthcare Systems JO - J. Artif. Intell. Healthc. Syst. SN - 3149-8981 Y1 - 2026 VL - 5 IS - 2 SP - 137 N2 - Fall risk in aging populations is a modifiable health concern, with mobility patterns changing over time due to factors like frailty, comorbidities, and medication. Smartwatch accelerometers provide a privacy-sensitive way to monitor gait and movement outside clinical settings. However, federated learning, which supports privacy by keeping sensor data local, faces challenges in aging populations due to concept drift from gradual mobility decline, which can invalidate static models. This article proposes a federated continual learning framework to adaptively maintain fall risk prediction models using smartwatch data. The system includes local models that combine feature extraction with temporal sequence modeling, continual learning to prevent forgetting, and a federated server for privacy-preserving coordination. It aims to support personalized fall risk monitoring, reduce concept drift, and enable scalable deployment in senior care settings, with clinical validation necessary for real-world assessment. UR - https://cirpublications.com/s417811021 ER -