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Abstract
Purpose: The study was conducted to investigate the prevalence and clinical prediction rules for substantial overuse sports injuries among children and adolescent karate players. Subjects & Methods: A cross sectional study conducted with fifty nine children and adolescent karate players ranged in age from 8 to 18 years, from port-said private and public clubs and karate schools of both sexes (45 boys and 14 girls) were enrolled in this study. With training experience in karate at least 3 years. and training intensity at least 3 hours/week, and their belt ranks were between (orange-black). Sports injury questionnaire and Oslo sport trauma research center overuse injury questionnaire (OSTRC) were used to collect the data. The study was conducted from April 2015 to February 2016. Results: The results revealed that 39% of athletes sustained at least one injury per year which were localized mainly in lower limbs, there is no clinical prediction rules for injury/year. Every factor (age, training age, sex, rank, style, training dosage/week, training time/day) was insignificant as predictor. Overuse injuries had been investigated in hip, knee, ankle joints; 75% of the players complained at least one overuse injury most of them in hip joint, there is no clinical prediction rules for hip, knee and ankle joints overuse injury. Conclusion: It could be concluded that injuries among children and adolescent karate players is common in karate players specially overuse injuries. There is no clinical prediction rules for hip, knee and ankle joints overuse injury and injury/year