article 2023 Heart Rate Variability Based Estimation of Maximal Oxygen Uptake in Athletes Using Supervised Regression Models Vaishali Balakarthikeyan, Rohan Jais, Sricharan Vijayarangan, Preejith Sreelatha Premkumar, Mohanasankar Sivaprakasam JournalSensorsDOI10.3390/s23063251Populationathletes View on DOI ↗