Good topic. Here's some additional info:
After activity, muscular soreness typically peaks 24-72 hours after activity. This is the result of small, safe damage to muscle fibers and is called Delayed Onset Muscular Soreness (DOMS). During this time, your muscles may be tender to touch and feel tight and achy. Movement may initially be uncomfortable but moving and gently stretching your muscles will help to decrease soreness. During the few day period that you experiencing muscular soreness, you might consider performing alternate exercise activities in order to give your sore muscles an opportunity to recover while strengthening other muscles.
In contrast to muscular soreness, you may experience pain during or after performing exercise. This may feel sharp and be located in your muscles or joints. This pain may linger without fully going away, perhaps even after a period of rest. This may be indicative of an injury. Pushing through pain can result in injury. If you feel that your pain is extreme or is not resolving after 7-10 days you should consult with a medical professional. This person will diagnose your injury and direct you to the appropriate pathway of care.