Say you have decent run fitness and bike fitness. While doing some cx skills practice you are just riding at roughly upper zone 2 by HR. You get off to run some short small steps at a slow run pace. The HR still spikes an easy 10bpm.
If you were running z2 by HR then gave it 15 seconds of strides fast, I don’t notice a big instant spike.
What’s behind the muscle use and HR spike for swapping uses between bike run within the same short span that causes the spike versus a single sport spike in intensity?
If you were running z2 by HR then gave it 15 seconds of strides fast, I don’t notice a big instant spike.
What’s behind the muscle use and HR spike for swapping uses between bike run within the same short span that causes the spike versus a single sport spike in intensity?