Synchronised ECG and PPG Data Collection for AI-based QT/QTc Reconstruction (ILECS-ECGPPG)

This observational study will collect synchronized photoplethysmography (PPG) and electrocardiogram (ECG) recordings from approximately 50 healthy adult volunteers. Participants will wear the Corsano CardioWatch 297-2 and a reference ECG device simultaneously for approximately 24 hours, including standardized activities and free-lining conditions. The objective is to generate a high-quality paired ECG-PPG dataset to support the development and evaluation of artificial intelligence methods fro reconstructing ECG parameters, with a particular focus on QT/QTc, from PPG signals. The study will also evaluate the feasibility and usability of the wearable monitoring system.

Inclusion Criteria: * Able to provide written informed consent. * Willing and able to comply with all study procedures and attend the required study visits. * Age ≥18 years. * Able to read or understand Dutch or English. Exclusion Criteria: * Children/minors or vulnerable individuals. * Skin conditions or allergies preventing safe wear of the CardioWatch or ECG electrodes. * Any condition that, in the investigator's opinion, may interfere with study completion or data quality. * Compromised circulation, injury, or physical malformation at sensor sites. * Known clotting disorders or current prescription anticoagulant therapy. * Other health conditions preventing safe participation. * Wrist circumference \23 cm. * Any participant who, in the investigator's opinion, does not meet study requirements