Garmin Edge 800 FW update v2.40 adds NP, IF & TSS

moonshine

Garmin have released a new firmware for Edge 800 which has added Normalized Power (NP), Intensity Factor (IF), and Training Stress Score (TSS) data metrics.

http://www8.garmin.com/support/download ... sp?id=5237

DCRainmaker indicated this would precede the firmware upgrade for the Edge 500 to include these metrics

springtide9

Thanks!

Just downloaded and installed. Will probably be next week before the 800 gets an outing... so hope it hasn't broken anything.

Anyone know if the "Normalized Power (NP), Intensity Factor (IF), and Training Stress Score (TSS) data metrics" - requires the Cadence sensor? I have removed mine as it stopped working (and got it replaced).. but haven't bothered refitting.
Also not sure how accurate any of the above metrics are likely to be.. so wonder whether this is just a gimmick or useful data.

Anyone with thoughts?

doyler78

springtide9 wrote:

Thanks!

Just downloaded and installed. Will probably be next week before the 800 gets an outing... so hope it hasn't broken anything.

Anyone know if the "Normalized Power (NP), Intensity Factor (IF), and Training Stress Score (TSS) data metrics" - requires the Cadence sensor? I have removed mine as it stopped working (and got it replaced).. but haven't bothered refitting.
Also not sure how accurate any of the above metrics are likely to be.. so wonder whether this is just a gimmick or useful data.

Anyone with thoughts?

Reports on wattage would suggest that the metrics are on a par with WKO+ so looks like they have managed to get this one right.

Cadence is not used in the calculation of those metrics so I can't imagine any such requirement.

Alex_Simmons/RST

springtide9 wrote:

Anyone with thoughts?

Depends on the power meter.

With SRM & Quarq, if you are not getting cadence, you ain't getting power data.

With Powertap, it does have a virtual cadence option, not requiring a cadence sensor. In any case, this does not impact power recording which is what is required for calculating NP, IF & TSS.

GiantMike

ignore me, I'm getting old.