A muscle injury is a tear or bruise of the muscle itself. Muscle soreness is more commonly the burning from lactic acid trapped in the muscles that is burned off with strenuous use of the muscle.
You can pop a muscle
Muscle overuse results in soreness and stiffnessof the muscles.
The leading hypothesis for delayed onset muscle soreness are the: connective tissue damage hypothesis the skeletal muscle damage hypothesis the spasm hypothesis
Exercise and working out
Post Exercise Muscle Soreness
Make sure to stretch before and after exercise, it reduces the lactic acid in the muscles reducing soreness. If it's soreness from the rebuilding of muscle then it's fine but if it's soreness due to injury then don't exercise without consent of a doctor.
A build up in lactic acid can cause muscle soreness. Also, it is important to get a good source of protein so your muscles have more building blocks to repair themselves, and cardio exercise (anything that raises your heart rate)
Well, it could be the fact you're not used to using it or using it in the way you recently did. Happens a lot from that. The scientific answer to what produces muscle soreness is lactic acid.
True.
Delayed onset muscle soreness
Mrs. Everitt