Spotted this in the latest firmware but interesting to find out what it actually means!
- Fixed Firstbeat metrics for multiple rides during the same power cycle
When I use Zwift on my indoor trainer, I record the while ride on my forerunner 645 to get a meaningful training effect score, as I usually split my edge 520 recordings I to separate activities for warm up, workout/race, cool down.
Hopeful this update hints that Garmin have found a way to 'accumulate' the training effect metric across consecutive activities!
