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Journal of Kerman University of Medical Sciences، جلد ۱۹، شماره ۱، صفحات ۶۳-۷۲
عنوان فارسی
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عنوان انگلیسی Repeatability of Ground Reaction Force during Jump-Landing in Volleyball Players with Functional Ankle Instability
چکیده انگلیسی مقاله Background and Aims: The accurate mechanisms of ankle instability cannot be assessed in the absence of reliable knowledge about ground reaction force (GRF) variables. The purpose of this study was to evaluate the test-retest reliability of GRF variables during forward and lateral jump-landing in volleyball players with functional ankle instability (FAI). Methods: Eighteen professional volleyball players with unilateral FAI participated in this study. They performed four jump-landing trials in forward and lateral directions. After a one-week interval, the repeatability of GRF variables including peak and time to peak of the three components of GRF (Fx, Fy, Fz) were assessed using intraclass correlation coefficients (ICC), standard errors of measurement (SEM), and coefficient of variation (CV). Results: All variables in both forward and lateral jump-landing showed high to very high repeatability. However, time to peak of Fx in lateral jump-landing demonstrated moderate repeatability (ICC = 0.67). The CVs of all GRF measures were less than 10% except for the peak and time to peak of Fx component in lateral jump-landing (14.55% and 13.15%, respectively). In general, the repeatability of GRF variables in forward jump-landing was greater than that in lateral jump-landing. Conclusion: GRF variables in forward and lateral jump-landing had high consistency. These parameters were found to be useful in the assessment of GRF patterns in subjects with FAI. 
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله m صادقی |
assistant professor, department of physical therapy, paramedical school, kerman university of medical sciences, kerman, iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمان (Kerman university of medical sciences)

e ابراهیمی |
professor, department of physical therapy, school of rehabilitation, tehran university of medical sciences, tehran, iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

n معروفی |
assistant professor, department of physical therapy, school of rehabilitation, tehran university of medical sciences, tehran, iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

a اشرف جمشیدی | ashraf jamshidi
assistant professor, department of physical therapy, school of rehabilitation, tehran university of medical sciences, tehran, iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

نشانی اینترنتی http://jkmu.kmu.ac.ir/article_16545_40c73ceafbe13f5365980b37af4bcce3.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/93/article-93-404986.pdf
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