剧烈跑步对于健康年轻人膝关节软骨及半月板MR弛豫时间影响.pdf

NIH Public Access Author Manuscript Am J Sports Med . Author manuscript; available in PMC 2013 May 22. N Published in final edited form as: I H Am J Sports Med . 2012 September ; 40(9): 2134–2141. doi:10.1177/0363546512449816. - P A A u The Acute Effect of Running on Knee Articular Cartilage and t h o Meniscus Magnetic Resonance Relaxation Times in Young r M a Healthy Adults n u s *,† † †,‡ c Karupppasamy Subburaj, PhD , Deepak Kumar, PT, PhD , Richard B. Souza, PT, PhD , r i † † † † p Hamza Alizai, MD , Xiaojuan Li, PhD , Thomas M. Link, MD , and Sharmila Majumdar, PhD t †Musculoskeletal Quantitative Imaging Research, Department of Radiology and Biomedical Imaging, University of California–San Francisco, San Francisco, California ‡Department of Physical Therapy and Rehabilitation Science, University of California–San Francisco, San Francisco, California N Abstract I H - Background—Understanding the acute response of healthy knee cartilage to running may P A provide valuable insight into functional properties. In recent years, quantitative magnetic A resonance (MR) imaging techniques (T1 and T2 relaxation measurement) have shown ρ u tremendous potential and unique ability to noninvasively and quantitatively determine cartilage t h o respo