I took off about nine months from cycling, then took my Specialized Crossroads Elite (upright comfort bike) to the local bike shop to be tuned up. They replaced the shock seatpost which was slipping. Now I notice that when I start riding, the center of my upper thigh, right at the hip crease, becomes sore almost immediately. This seems to be worse if I bend forward. Do you think this is due to:
- the new seatpost and seat adjustments?
- simply being absent from cycling for so long? (I don't remember this feeling after previous long absences, though)
- too much flexibility due to lots of hip opener stretches in yoga?
Is there something I should do? Adjust the bike somehow? Or just build my muscles up through more cycling?