My legs are getting used to the new road bike, but I'm having an issue I think is related to the riding.
I am training for a triathlon and walking a half-marathon.
If I go and ONLY walk, I have no pain in my back. Last night I rode 10k through moderate hills in fairly windy conditions. I had no pain on the bike. Once I got OFF the bike, though, my upper back started to hurt. It isn't stabbing pain - it's basically the area covered by the back of my sports bra (which is supportive and fits). I walked for an hour with tiny bursts of running, but the pain didn't go away (but didn't get worse).
At the end, I got on the bike to go home, and within a mile or so, the pain was gone.
So if I don't bike, I don't get pain. If I DO bike, I get pain...but not when I'm on the bike.
The saddle was adjusted this week and feels comfortable (though I'm going to get a slightly softer, women-specific one this weekend, I think). I got some numbness in one foot...the one in a toe clip. I'm switching to clipless here shortly, and I think that will eliminate that issue.
Any thoughts? Core strength? A side effect of being busty (not to be crude, but it can't help)? Bad posture on my walk becoming more important when I'm tired?
I need to figure this out before the triathlon - there's no way I want to walk/run a 10k in pain that can be avoided!