This November I started a build plan. All riding prior to that was outside. Even after just the 1st week inside I noticed tension in my hip flexors. Nothing bad just sort of a “that’s interesting” sort of feeling. I just completed my 5th week and the hip flexors are feeling uncharacteristically sore.
If I understand correctly “tight or sore” hip flexors are more due to an imbalance with the glute complex or glutes not being recruited therefore the hip flexors are forced to overcompensate.
That’s all fine, but I’m wondering why this presented itself when I started training on a trainer? Bike and fit is identical and has not changed this year from last. Any ideas or insight appreciated.