Modifying the Norwegian approach to lower mileage

I had looked at it once before but apparently not close enough because I didn't know it could do splits based on elevation change. It seems like it could be viable, just requires the upfront work of 1) finding or generating a gpx file and 2) reviewing the course and determining what my goal time/pace is based on elevation gain/loss adjustments relative to my training paces.

No, it's an acceleration sensor. That makes the derived values a bit "touchy", but the PhD engineers behind it all seem to know what they're doing, since a number of studies have shown that Stryd power is highly predictive of metabolic demand.

AFAIK no one had shown the same for data from an on-bike power meter, but knowing what I do know I would be surprised if the relationship were significantly tighter.

As I said, though, I don't use a Stryd - unlike with cycling, speed/pace is generally good enough.

and since it struggles with the part of the equation that would accurately arrive you at ‘acceleration’ its a speed sensor

especially when we are talking about a single pod vs a double, which is the only way this thing was offered for its first 9 years

and we can tell youve never used one and are mostly flipping through the brochures

however, many of us have

This poster is Jan Stensson, who goes by J.S. He is a known scammer.

You Yanks never heard of taking the piss?

Stryd uses an accelerometer to measure acceleration. Speed/distance/power are derived from those measurements.

‘along with other sensors to measure a runner’s motion through space’

that’s the part you’re not quite adding into your ‘assessment’

your Garmin has an algorithm for producing ‘power’ and ‘vo2’ #s as well, I wouldn’t trust those either btw

The only additional sensors are those used to calculate the power required to overcome aerodynamic drag.

You must have missed my earlier post. Garmin calculates power somewhat differently than Stryd, and it's a bit noisier, but it too still does a pretty good job of reflecting metabolic cost (see the study that I posted previously).

Hey man, I'm not complainng about the PB at all. Was really pleased with the 1500 race. But I think I'm just saying you can't have it all. Sure, I probably was a little stronger over that distance, but I paid the price with a much worse 10k.

Maybe I didn't make my point clear enough. But I think in general I will take almost being in peak shape across the board, at all distances, than sacrificing that for a few seconds at one particular distance. But other people might feel differently and that's totally fine, it's just a choice hobby joggers probably have to make.

right and these are only calculating ‘metabolic power’ since they can’t measure mechanical power

that’s where this all started

so it doesn’t calculate changes in incline or elevation?

you haven’t used one, i forgot

I see you have met Jan :)

No, Stryd calculates mechanical power based on the measured accelerations (and aero drag). It does not calculate, present, or even attempt to predict metabolic power.

Changes in elevation are determined from the measured accelerations.

Note: I hold a patent on power measurement.

i mean you can keep repeating that nonsense all day, but see previous responses im not going to keep re litigating how stryd is not mechanical power

pubmed.ncbi.nlm.nih.gov

The Ability of Stryd Footpod Metrics to Reflect Changes in Metabolic Power Between Running Shoe Types - PubMed

It is unclear if running power (RP) estimated by the Stryd footpod device maintains its linear relationship to metabolic power (WMET) when switching between training and racing shoe types. This study determined if RP estimate...

Open link

how do you think its ‘aligning’ with oxygen consumption data? because its trying to estimate the energy demand using CP

werent you just talking about RE correlation earlier?

now your telling me the exact opposite

where are you getting this S from?