Hey everyone, this is something that's happened to me recently so I was wondering if someone could clear it up.
Basically, I suck at cycling, however this week I've been forced to use the static bikes in the gym due to a minor strain on my left Achilles tendon. While cycling, I'm able to keep my heart rate at around 73% consistently for about 45 minutes (until I get totally bored)- so I'm maintaining up my aerobic fitness, at least.
However, while cycling at these speeds, my legs are feeling like they're in tempo-run zone - basically, hard but manageable. Yet my heart rate and breathing are more like I'm on an easy run.
So my question is this - will cycling for a while at these intensities have the capability to increase my LT, even though my heart rate remains low? Or am I just talking out my arse?