Q: I was weight training today even though my muscles were sore from the previous workout 2 days ago.Is this a bad idea? should I postpone my workout until the soreness is 100% gone?

A: Don't ever train muscles that are still recovering from your last workout! It is OK and, in fact, expected that you train one muscle group while another is still sore and recovering. For example if your legs are sore from doing squats two days ago, it's still perfectly OK to train chest with bench presses. But it's not OK to do lunges on sore legs.

Well-designed lifting programs will stagger working different muscle groups throughout the week so you can work one group while the other is still recovering. You can find examples of such programs in the Weightlifting article in the Articles section of the site.