Garmin seems to have completely changed the way fitness age is calculated and displayed in both GC Web and the GC Android app (at least for me). Last time it looked, my fitness age was 20 and calculated from my VO2Max. Now it is way, way higher, and uses resting heart rate, weight and activity. It says I've reached my "achievable fitness age". The historical data only shows the last four days, so I am assuming this changed in this week.
I can't find any information for this new way of calculating data. Can anyone shed more info or provide links to a white paper or blog entry? Garmin is normally pretty good at providing explanations on their information. E.g. how is the achievable fitness age calculated?
I am also assuming it is related to the new Venu 2 release this week. The only Google hit I got on achievable fitness age was in a Venu 2 review (with no explanation). Nothing has changed on my side. I've been using the same devices for the last 18 months or so.
