Design and Rationale of the My Heart Counts Cardiovascular Health Study: a Large-Scale, Fully Digital Biobank, and Randomized Trial of Large Language Model-Driven Coaching of Physical Activity

By utilizing autonomous, LLM-driven coaching, modular software design, and cross-platform accessibility, the next-generation My Heart Counts smartphone application-based study will provide a scalable model for inclusive and decentralized preventive care of patients with cardiovascular disease.