Hi,
I've logged an indoor rowing session on a concept2 rower with PM5 connecting my Garmin Instinct 2X Solar to the PM5 (via ANT FE-C).
As I also have enabled the forwarding of data from concept2 logbook to Garmin Connect, I see two activities in Garmin connect (this is expected).
The workout was simple 30min (so a single interval, I know there're discrepancies in the handling of rest intervals but here there were none)
The problem I have is that the "Work (kJ)" data seems very wrong:
- In the activity logged by my Garmin Instinct 2X connected to the PM5: Avg / Max / Normalized power are respectively 155 / 173 / 155 W, Work is 279 kJ
- In the activity forwarded by concept2 logbook (third-party activity): Avg / Max / Normalized power are respectively 155 / 171 / 154 W, work is 98 kJ
Now, 155W for 30min is 155x30x60 = 279 kJ, which seems to agree with the value shown in the activity logged by the I2X.
What I don't understand is why when the activity comes from the concept2 logbook, the power is identical (or almost), the overall time (30min) too, while the work is totally different.
Any idea ?