A SCIENTIFIC TOOL
HRV4Training started as a research project and is the first validated platform able to provide reliable HRV measurements using the phone camera
Similarly, most of our analytics have been published and thoroughly documented for the scientific community (from VO2max estimation to lactate threshold and racing time estimates as well as acute HRV responses to training stressors). Please search our Blog as many additional details are provided there
You can also find all our publications at this page on Research Gate