Heart rate variability monitoring: tool or toy? Insights from the elite world.

Firstbeat Summit. Helsinki, Finland, 2019

HRV analysis lets you monitor athlete training response, rather than training load. When interpreted correctly this helps make decisions which positive impact performance output. 

It is important to make decisions based on multiple days of HRV data rather than on a one-off basis. An individual day’s HRV data may not truly reflect the training status of an individual athlete. Taking into account several days – a minimum of 3 days-per-week – provides more relevant data.

HRV monitoring is most relevant to sports with a high metabolic component and high training volume.

Slides here