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Medical Journal of Islamic Republic of Iran، جلد ۲۷، شماره ۲، صفحات ۶۷-۷۶
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عنوان انگلیسی Ankle rotation changes and its influences in knee osteoarthritis
چکیده انگلیسی مقاله Background : Biomechanical factors are known to be important in knee osteoarthritis (OA) development and progression. This study was designed to determine changes of hamstrings muscle activation, knee adduction moment and ankle rotation angle in two knee osteoarthritis (mild and moderate) and a healthy control group. Methods: 16 females (10 with mild and 6 with moderate medial knee osteoarthritis) and 10 control matched females were recruited. A 3D gait analysis was performed on the subjects while they walked along the walkway. Electromyography data was also collected during gait from lateral and medial hamstrings. Post Hoc Tukey HSD (multi comparison) was performed to compare knee adduction moment, ankle rotation angle and medial and lateral hamstrings activity at early and late stance, between three groups. Results: Ankle rotation angle, knee adduction moment and lateral hamstrings activation showed no significant difference between three groups. Interestingly, medial hamstrings activity was significantly higher at late stance in moderate group compared with asymptomatic and mild groups ( p =0.03, 0.02 respectively). Also knee adduction moment at late stance was significantly and directly correlated with ankle rotation angle, and lateral hamstrings activity at early stance was significantly and inversely correlated with this angle. Conclusions: It can be concluded that, increased lateral hamstrings activity can increase external ankle rotation and consequently decrease knee adduction moment.
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نویسندگان مقاله فاطمه نواب مطلق | fateme navab motlagh
school of biomedical engineering, amir kabir university of technology tehran polytechnic , tehran, iran.

سازمان اصلی تایید شده: دانشگاه صنعتی امیرکبیر (Amirkabir university of technology)

مصطفی رستمی | mostafa rostami
school of biomedical engineering, amir kabir university of technology tehran polytechnic , tehran, iran.

سازمان اصلی تایید شده: دانشگاه صنعتی امیرکبیر (Amirkabir university of technology)

آنیتا عمرانی | anita emrani
physiotherapy department, school of rehabilitation, tehran university of medical science, tehran, iran.

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

حمیدرضا یزدی | hamidreza yazdi
department of knee surgery, firoozgar hospital, school of medical sciences, tehran university of medical sciences, tehran, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)
سازمان های دیگر: Firoozgar Hospital

محمدرضا کیهانی | mohammadreza keyhani
school of basic sciences, tehran university of medical sciences, tehran, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

نشانی اینترنتی http://mjiri.iums.ac.ir/browse.php?a_code=A-10-1-575&slc_lang=en&sid=en
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده 1
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