Are there any sports sensor validation studies at the level of a clinical study?

The group of the cardiologist Dr. Milind Desai from Cleveland Clinic in Ohio published two papers: https://journals.lww.com/acsm-msse/Fulltext/2017/08000/Variable_Accuracy_of_Wearable_Heart_Rate_Monitors.22.aspx https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6732081/ Dr. Milind Desai is cardiologist working in the Cleveland Clinic in Ohio, the papers are not for clinical applications, but for sporting activities. But a clinician as Dr. Desai has the potential for clinical studies. But unfortunately, …