Is training effect independent of speed?
This question is not innately tied with the Norwegian Singles methodology, but asking here as the data-driven running community. Feel free to remove if inappropriate.
We all know that a run can depend on a lot of different factors such as weather, terrain, and fatigue. My question is - do these things matter if your heart rate and perceived exertion is the same?
Let's say I do two runs:
- One run is Portland, Oregon in a lovely 15°C with a breeze. I'm well rested and fueled and run a easy 4 mile run at an 8 minute pace. My average heart rate is 130 bpm with a rate of perceived exertion of 3/10.
- The next week, I take a flight to Tampa, Florida where it is still 31°C. I'm still tired from my flight and ate only fast food from the airport. I run 4 miles at a 10 minute pace with a couple of walks when heart rate starts to elevate. My average heart rate is 130 bpm with a rate of perceived exertion of 3/10.
From a training perspective, are these runs the same "value?"
I understand that NSA and running in general is far more about consistency than conditions. This isn't meant to dissuade myself or anyone from running when the day isn't perfect - this is simply a theoretical question that may or may not have a definitive answer.