I asked a question on Bicycles, but then thought maybe it's more 'sport' related. I just don't know.
Question: Is there a reason why one's calfs would ache on a Turbo or Spinner, but not when riding on the road?
I'm not on my own on this one as at least two other people in my Spinning class suffer the same: when Spinning or on the Turbo Trainer, I can feel pressure on my calf muscles after a bit of time (usually less than 45 minutes). But I can ride on the road for up to 3 hours without feeling any pressure.
I think it's something to do with leg angles: on the road, the bike changes angle slightly to best match the angle of the leg, but on a spinner or Turbo, it's fixed and so can't move.
Are there any proven reasons why calfs would ache on a static bike but not on the road?