Originally Posted by newfydog
Good grief, it's a sport, a physical activity. If you don't get sore you must be doing something wrong.
Skiing is a fairly high impact negative action movement. If all you do is smooth stuff, your legs won't be ready. I've had the sorest legs when I've been in shape from biking, (your legs hold up but it is a different motion).... the change in muscle use can be devastating.
It sounds like you're describing delayed-onset muscle soreness (DOMS), which is a bit different from what the OP is talking about.
The OP is describing what sounds like anaerobic threshhold muscle burn, probably a combination of being a little out of shape early in the season and back seat driving.
I'm in shape from biking all year, and didn't experience any thigh burn or muscle pain on the slopes yesterday, but do my legs ever hurt today. I researched DOMS last year and...nobody really knows what it is or what causes it or what prevents or relieves it. Eccentric muscle contraction (muscle lengthens as it contracts) predisposes to DOMS. Skiing involves eccentric contraction of the leg muscles.
Home and patent remedies for DOMS abound. Small, open-label studies suggest that compression garments, heat wraps and vibratory massage may help. Warming up seems to help. Eating protein + carbs in the right ratio (~what you'd find in chocolate milk) within 30 minutes of exercise may aid in muscle recovery.