The first paper proving an association between depressed HRV and risk of falling was published on IEEE Journal of Biomedical and Health Informatics in March 2016.

Enrolling 150 subjects, we trained and tested an automatic classifier basing on Multinomial Naïve Bayes enabled to predict first-time fallers. This achieved sensitivity, specificity and accuracy rates of 72%, 61%, 68% respectively.

This was the first sutdy proving this association.