Ni, Guo-Xin Intensity-dependent effect of treadmill running on knee articular cartilage in a rat model. [electronic resource] - BioMed research international 2013 - 172392 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 2314-6141 Standard No.: 10.1155/2013/172392 doi Subjects--Topical Terms: AnimalsCartilage, Articular--physiologyExercise TestHumansKnee--physiologyPhysical Conditioning, AnimalRats