EnduroMetrics-HRV

EnduroMetrics-HRV TWO TOOLS IN ONE INSTANT HRV READING • ACTIVE RECOVERY MEASUREMENT Run a 3-minute baseline (Passively, seated, relaxed and still) anytime morning, midday, before training and get accurate, validated RMSSD, lnRMSSD, pNN50 and HR readings stored permanently in Garmin Connect. The same HRV metrics used by smart rings and medical-grade HRV apps available directly on the Garmin device you already own, whenever you choose. But this data field also does something no smart ring, wrist sensor, or overnight HRV app can do. ________________________________________ SCIENCE BEHIND THE MEASUREMENT Research confirms it. RMSSD Recovery Kinetics: Well-trained endurance athletes show significantly faster parasympathetic reactivation, measured through LnRMSSD, compared with untrained adults after maximal exercise. The faster RMSSD returns to baseline, the stronger and more resilient the autonomic system. (Dupuy et al., European Journal of Applied Physiology, 2021 pmc.ncbi.nlm.nih.gov/articles/PMC8548865) EnduroMetrics-HRV measures that return speed in real time directly on your wrist. ________________________________________ IN UNDER 8 MINUTES YOU KNOW YOUR HEART RATE TELLS YOU HOW HARD YOU WORKED. IT DOES NOT TELL YOU HOW WELL YOUR AUTONOMIC SYSTEM RECOVERED. Morning HRV is static. Training is stress under load. Smart rings measure you while you sleep. They cannot show what happens when your system is activated. This does. ________________________________________ ARE YOU READY OR JUST MOTIVATED? Did your parasympathetic system truly recover from previous sessions? Or are you about to add training load on top of hidden autonomic stress? Your overnight number cannot answer that. This can. ________________________________________ THREE STEPS. ONE ANSWER IN 8 MINUTES. 1. Walk 3 minutes baseline locks (Actively, light walking for dynamic baseline) 2. Light jog 3–5 minutes controlled sympathetic activation 3. Return to walk press LAP When RMSSD returns to baseline and the ANS zone turns green, press LAP again. That duration becomes your Recovery Window. Shorter than reference = train Longer than reference = adjust Compare identical conditions only. No guesswork. No motivation bias. ________________________________________ WHERE SMART RINGS STOP Smart rings show resting state from hours ago. Between waking and training your physiology already changed — stress, heat, sleep, fueling. EnduroMetrics-HRV captures autonomic response and recovery under real physiological load exactly where performance decisions are made. Use it to check readiness before training, track recovery after sessions, monitor return between intervals, control rest between strength sets, and confirm real adaptation during return-to-sport phases. ________________________________________ WHAT IT MEASURES Real-time RMSSD • Active Baseline • Recovery Time Window ANS Zones • RMSSD Slope R² validated • AFI 5 HR Zones Levine CHOP • Signal reliability • FIT recording per session and Stats Three converging signals define autonomic load. ________________________________________ CONNECTIVITY ANT+ chest strap required. Garmin HRM-Pro, HRM-Dual, HRM-Tri • Polar H10, H9 • Wahoo • Suunto, CYCPLUS H2 PRO ________________________________________ For training use only. Not a medical diagnostic tool. Consult a healthcare professional before intense exercise. ________________________________________ • Website: https://endurometrics.com • Athletes Guide: https://endurometrics.com/endurometrics-hrv-for-athletes/ • Dysautonomia, POTS, Long Covid monitoring: https://endurometrics.com/endurometrics-hrv-for-long-covid-pots-dysautonomia/ • UI Guide: https://endurometrics.com/endurometrics-hrv-ui-guide/ • Support Group: https://facebook.com/groups/1454371339584918

ATTENTION: The data field has been tested with 100% successful connectivity using the 1.Garmin HRM-Pro Plus, 2. Polar H10 (100% right connectivity) 3. CYCPLUS H2 PRO . The connection method is identical and works the same way with all compatible chest straps that support RR interval transmission. If you experience any issue with a specific strap, please contact me via email and I will review it promptly. Important: On your Garmin watch, make sure your chest strap is connected via BLE (not ANT+). This leaves the ANT+ channel available for the data field to read RR intervals correctly. https://endurometrics.com/guide-endurometrics-hrv-chest-strap/ If the data field does not connect the first time, remove the battery from your chest strap for 5–10 seconds, reinsert it, and start the activity again. The connection should then establish normally. Version 1.1.11 Cycplus H2 Pro is now fully compatible (requires firmware 1.1.0 or newer). To update your H2 Pro, please open the official CYCPLUS app on your phone, connect your strap, and install the available firmware update. EnduroMetrics-HRV now officially supports the following chest straps (native RR interval / HRV support): Garmin, Polar, Suunto, Wahoo, and Cycplus H2 Pro (with firmware 1.1.0+). --------------------------- v1.1.9 - Fixed bug that prevented bradycardic athletes from completing baseline collection. --------------------------------- Version 1.1.7 ANT+ device tracking. FIX write conflicts Baseline summary FIT fields: Adding Summary review in the end of workout with BL RMSSD, BL HR, BL lnRMSSD, BL pNN50 --------------------------- Version 1.1.5 -HR Zone Indicator — Fixed positioning to move proportionally within each zone -ANS Zone Indicator — Corrected movement logic so that 100% of baseline is at the center of the green zone, with higher values moving left and lower values moving right -Timer Pause/Resume — Timer now stops completely when paused and resumes from the exact same point -Black Background and draw lines Support — HR and ANS zone indicators and draw lines now switch to white color when black background is detected, ensuring visibility in both light and dark themes. -AFI Zones updated to: 0-25 Green (Normal), 25-40 Yellow (Mild Fatigue), 40-60 Orange (Moderate Fatigue), ≥60 Red (Severe Fatigue) for improved sensitivity and clinical relevance.