I am an "eeny-weeny" beginner to both weight training and mountain biking. (It didn't take long to get hooked on both...) The gym I belong to has a class called "Free Weights 101 for Women" and it's excellent, especially if you're new to it.

Have any of you determined which types of weight training exercises are the most beneficial to your riding? I know posture is an issue for me...can you suggest anything specific to help? Also, I tend to feel as if I've been doing one really long push-up during and after riding. Is that an "arm-strength" issue? Any suggestions?