My training this winter consists of riding the trainer, taking an erging class, an occasional squash game, and strength training. In Feb. I'll be starting more focused and intense work on the trainer and still erging twice a week. I like to keep strength training in my upper body and doing core work, but when I lift for the lower body, my legs get pretty sore and I'm much less apt to hit the train for a day or two after.

How important is lower body lifting right now? Am I gaining enough strength through the trainer and erging to be able to eliminate it when I ramp up my spin work? My goals this winter are to increase on the bike endurance and power.