HRV is a powerful indicator of your body’s readiness and resilience. It refers to the natural variation in time between each heartbeat (so called R-R intervals), an often-overlooked signal of how well your body is balancing stress and recovery. These tiny fluctuations are guided by your autonomic nervous system, reflecting the constant interplay between your sympathetic (fight or flight) and parasympathetic (rest and digest) responses.
For athletes and fitness enthusiasts, tracking HRV during activity can open a window into the body’s inner workings. This data offers more than just numbers—it tells a story of how your body is coping with stress, recovering, and evolving. It also differs significantly from morning or resting HRV, which is typically measured while lying down in a relaxed state to establish a daily readiness baseline. While resting HRV is valuable for big-picture recovery trends, HRV during activity gives dynamic insights into how your body responds under stress.
These benefits make HRV logging a powerful ally in training smarter, recovering better, and reaching long-term athletic goals sustainably.
You need 2 things to make this happen
I) Chest-Strap
We recommend Garmin (HRM-Pro Plus), Polar (H10), or similar device of the same quality.
☝🏽 Wrist-based smartwatch sensors simply aren’t accurate enough for recording HRV data during activity and therefor this function is not supported without a chest strap.
II) Smartwatches
Not every Garmin watch can record HRV during activity —but many of the performance-oriented models can. Below is a list of watches we know the HRV logging capability.
Modern Garmin models
(e.g. fēnix 5 or higher, Forerunner 745 or higher Epix, Enduro)
Legacy Garmin models
(e.g. Forerunner 620, 920XT, fēnix 3)
Forerunner 910XT
☝🏽 HRV data is not shown live on the watch display. It must be analyzed later via third-party tools (e.g. TRIQ) after syncing the FIT file
At TRIQ, we recognize the value of HRV data as a cornerstone for intelligent, adaptive training. Our goal is to make this powerful physiological signal practical and actionable for every athlete.
Our first HRV-related feature focuses on automatic threshold detection (Q4 2025) based on DFA-alpha1 analysis. This allows athletes to determine their aerobic and anaerobic thresholds using only HRV data collected during “normal” activity—no need for lab visits, lactate testing, or guesswork. It’s a non-invasive, science-backed method that fits seamlessly into everyday training.
If you haven’t enabled HRV logging yet, now is the perfect time to start. Unlock deeper insights, train with precision and give your body the feedback it deserves. Your future performance starts with the data you collect today.
