@ARTICLE{Shojaedin, author = {Shojaedin, S.S. and Sahebozamani, M. and Mehrabian, H. and }, title = {Knee Joint Osteoarthritis in Retired Professional Athletes and Non- athletic Persons}, volume = {11}, number = {3}, abstract ={ Background and Objectives : Physical activities have been recently recommended for the prevention of some chronic diseases such as osteoarthritis. However, the detrimental effects of severe physical activity on musculoskeletal system of athletes are still under debate. The current study aimed to compare the following parameters between retired professional athletes and non-athletic persons radiographic grading scales of osteoarthritis of the knee joint, arthralgia, musculoskeletal dysfunctions during excercise , daily living or recreation activities , and life quality. Materials and Methods: In this cross-sectional study, 60 retired professional sportsmen aged 50-65 years involved in football, wrestling, and track and field sports with the same number of age-matched non-athletic controls were included. The participants were then divided into four equal groups of 15. The gathering data tools were as follows Clinical diagnosis and radiological findings confirmed by an orthopedic surgeon . The globalized and localized questionnaire of Knee injury and Osteoarthritis Outcome Score (KOOS) was used as the data gathering tool. Analysis of variance (ANOVA) and post Hoc (Tuky) test were used to analyze the data.  Results: The four above-mentioned groups had a significant difference regarding the following parameters radiographic grading scales of the knee osteoarthritis (p=0.001), knee pain (p }, URL = {http://journal.rums.ac.ir/article-1-1432-en.html}, eprint = {http://journal.rums.ac.ir/article-1-1432-en.pdf}, journal = {Journal of Rafsanjan University of Medical Sciences}, doi = {}, year = {2012} }