How different is recumbent cycling from upright?

To make it short, how much of the training done in a recumbent bicycle translate into an upright?

Due changing life circumstances, I had leave my bicycles with dual side power meter, smart trainer and trainer road behind and it is going to take at least a year before I’m stable enough to rebuild a comparable setup. The complex of my new apartment has a decent gym… except it has horrible stationary bicycles with nonadjustable, huge seats that are far too uncomfortable for me to use. I was able to do a much better workout on the recumbent bicycle.

If I do my training on the recumbent bicycle, will I be able to maintain a respectable cycling fitness? I have resigned to the fact that my training is going to be suboptimal, but I was hoping to keep an acceptable level of fitness and not waste all of my hard earned 320FTP…

85-95% if I had to take a guess.

But it will feel like 50% when you first hop back onto an upright. Given 3-6 weeks back on an upright your muscles will re-adapt and you’ll be good to go, assuming no orthopedic limitations.

It’s worth doing, for sure.

Rationale for my estimations:

  • Cardiovascular fitness doesn’t have much positional specificity, if any.
  • Muscular endurance and power are very joint angle specific and easily fatigable if not trained in their specific future use.
  • The primarily limiter of cycling performance is cardiovascular.
  • Muscular endurance and power transfer to new joint angles is faster than building it from scratch, by a fair margin.
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It’s very different… I was surprised how different it was. See my post for the back-story

I never really got used to it, and found I could not put out much power so I mostly did endurance style rides. My legs felt sore the whole time, kind of like holding your arm above your head.

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i put my pwr pedals on one at a gym one day it was much harder to put out watts. i think of it more as constantly leg pressing than cycling.; maybe gravity doesnt help you, idk?
Did break a sweat.

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