Activity HR Zone jon.roberts220161@gmail.com 28/05/2026 Heart Rate ZoneOwn System 3 Zone System using Maximum Heart Rate (Version 3)Own System 5 Zone System using Maximum Heart Rate (Version 1)Own System 7 Zone System using Maximum Heart Rate (Version 1)Garmin 5 Zone System using Maximum Heart Rate (Version 1)Coros 6 Zone System using Maximum Heart Rate (Version 1)Coros 6 Zone System using Threshold Heart Rate (Version 1)Coros 6 Zone System using Heart Rate Reserve (Version 1)OriginNo of ZonesHR MethodVersionDetailCoros6Threshold Heart Rate1ZoneLower %Upper %Recovery0%79%Aerobic Endurance80%90%Aerobic Power91%95%Threshold96%102%Anaerobic Endurance103%106%Anaerobic Power107%120%