Prevalence of Knee OA in Karate Community in Indonesia
Authors
Abstract:
Background. Osteoarthritis (OA) ranks fifth in the most disabling conditions. Karate is an unarmed combat sport that uses hands and feet to deliver and block blows. The karate movements, such as high load and frequent flexion and extension of the knee, make the athletes susceptible to knee injuries and progress to knee OA (KOA). Objectives. The study aims to address the prevalence and risk factors of KOA in karate athletes in the Karate Community in Jakarta, Indonesia. Methods. Fifty-nine karate athletes were enrolled in this cohort study in November 2018. Body weights and heights were measured, and a physical examination was performed. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) questionnaires were given. Ultrasound imaging and X-ray of the knee were conducted. All data were analyzed using STATA 15. A descriptive analysis was performed, and correlations between two continuous variables were analyzed using the Pearson Chi squared-test. Logistic regression analysis evaluated associations between knee osteoarthritis and independent variables such as sex, age, BMI, WOMAC score, injury, and ultrasound findings. Results. Among 59 karate athletes, 18 (23%) were clinically diagnosed with clinical KOA. Most of them were males (46 instructors). The mean age of KOA was lower than negative KOA (53.61; 54.75 years old) (p=0.332). The WOMAC score was the only variable that showed a difference between the two groups regarding independent variables. Conclusion. One-third of karate athletes were diagnosed with clinical KOA. WOMAC showed a significant difference between positive KOA and negative KOA.
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Journal title
volume 10 issue 4
pages 0- 0
publication date 2022-12
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