Aerobic (HR zone) timer

This data field was originally developed to determine if one has reached the heart rate zone criteria for getting a VO2max measurement. For this it measures the maximum continuous duration spent in heart rate zone 3 (aerobic) or higher. Depending on the activity type and the Garmin watch model, the required continuous duration in zone 3 or higher may be 10, 15 or 20 minutes in order to get a VO2max measurement. I since expanded this to be a configurable timer for target heart rate zone. # Features * Measure maximum continuous or cumulative duration spent in target heart rate zone(s) * Configurable target zone(s) * Vibrate alert when minutes goal in the target zone has been reached # FULL Version Features * Saves the duration spent in the target heart rate zone(s) to the session record in Garmin Connect * Determines heart rate recovery at the end of the activity and saves this for viewing with the activity in Garmin Connect. To use this, press STOP as usual at the end of your exercise. Rest. At the end of the 2 minutes, the watch will vibrate, indicating that the heart rate recovery has been measured. Now save the activity. View the results in Garmin Connect. For example, a heart rate recovery value of 25 means that your heart rate dropped 25bpm after 2 minutes. This value should increase as your fitness level improves. * Determines VO2max adjustment for altitude and saves this for viewing with the activity in Garmin Connect. This is useful for Garmin models that do not have the altitude acclimation feature. For example, if the VO2max adjustment value is 5%, then the VO2max reported by Garmin should be multiplied by 1.05 to estimate your VO2max at sea level. Note: Ignore this and do not adjust the VO2max reported by Garmin if your watch model already has altitude compensation. # Payment For the FULL version, use this link to pay US$1.40 via Stripe (no account required; credit card, Apple Pay, Google Pay accepted). https://buy.stripe.com/dR64hV5k05kF6sweXL Alternative payment via Paypal: https://www.paypal.com/paypalme/trudelta/1.40USD # Tags Heart rate zone, aerobic, heart rate recovery

Version 1.7.3 Added support for the Forerunner 70 and 170. Version 1.7.2 Added support for the D2 Mach 2 Pro. Version 1.7.0 Fixed crash on Edge 840 model. Version 1.6.1 Added support for the D2 Air X15 and D2 Mach 2. Version 1.6.0 FULL Version only change: Savesdthe duration spent in the target heart rate zone(s) to the session record in Garmin Connect. Version 1.5.19 Added support for Venu 4 models. Version 1.5.18 Added support for the Fenix 8 Pro, Edge 550 and Edge 850. Version 1.5.17 Added support for the Edge MTB. Version 1.5.16 Added support for the Venu X1. Version 1.5.15 Added support for Forerunner 570/970 models. Version 1.5.14 Added support for the Vivoactive 6. Version 1.5.13 Added support for Descent G2. Version 1.5.12 Added support for Approach S50/S44. Version 1.5.11 Added support for the Instinct 3 series. Version 1.5.10 Added support for the Enduro 3 and Fenix 8 series. Version 1.5.9 Added support for the Edge 1050. Version 1.5.8 Added support for Forerunner 165 models. Version 1.5.7 Added support for the Descent Mk3 43mm models. Version 1.5.6 Added support for Fenix 7 Pro Solar. Version 1.5.5 Added support for the Descent Mk3 model. Version 1.5.4 Added support for Fenix 7X Pro Solar. Version 1.5.3 Added support for Vivoactive 5. Version 1.5.2 Added support for Edge 840. Version 1.5.1 Added support for Venu 3 series. Version 1.5.0 FULL version only change: Wrote VO2max adjustment for altitude [%] to the Fit file for viewing in the Activity summary in Garmin Connect. This is useful for Garmin models that do not have the altitude acclimation feature. For example, if the VO2max adjustment value is 5%, then the VO2max reported by Garmin should be multiplied by 1.05 to estimate your VO2max at sea level. Note: Ignore this and do not adjust the VO2max reported by Garmin if your watch model already has altitude compensation. Version 1.4.3 Added support for Epix 2 PRO and Fenix 7 PRO models. Version 1.4.2 Added support for Approach S70. Version 1.4.1 Added support for Instinct 2X. Version 1.4.0 Added full version feature to determine heart rate recovery and save this for viewing with the activity in Garmin Connect. Version 1.3.0, 1.3.1 Added more language support. Version 1.2.4 Added support for the Forerunner 265 and 965 series. Version 1.2.3 Added support for Instinct Crossover. Version 1.2.2 Added support for Marq 2 series. Version 1.2.1 Added support for Venu Square 2 series. Version 1.2.0 Corrected problem reading settings on Connect IQ 4.0.0 devices. Version 1.1.3 Added support for Edge 1040. Version 1.1.2 Added support for Instinct 2 and Descent G1 series models. Version 1.1.1 Added support for Forerunner 255 and Forerunner 955 series models. Version 1.1.0 Improved timer accuracy. Version 1.0.2 Added support for D2 Air X10 and D2 Mach 1 models. Version 1.0.1 Added support for Epix Gen 2 and Fenix 7/7x/7s models.