A stress: fracture is an injury to the bone caused by repetitive microtrauma(for example, in the tibia from running). A muscle knot is not a medical term, but could represent a muscle strain or possibly spasm. So, a stress fracture is a bone injury, and a muscle "knot" is a muscle injury.
Answered 5/13/2015
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4 doctors weighed in across 2 answers
4 doctors weighed in across 2 answers
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