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مقایسه متغیرهای کینماتیکی اندام تحتانی در راه رفتن کودکان ناشنوا و شنوا | ||
پژوهشنامه فیزیولوژی ورزشی کاربردی | ||
مقاله 16، دوره 14، شماره 28، بهمن 1397، صفحه 201-214 اصل مقاله (287.53 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22080/jaep.2019.14269.1762 | ||
نویسندگان | ||
امیرحسین صدری1؛ مهدی مجلسی* 2؛ امیر علی جعفرنژاد گرو3 | ||
1دانشجوی کارشناسی ارشد بیومکانیک ورزشی، گروه تربیتبدنی و علوم ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران. | ||
2استادیار بیومکانیک ورزشی، گروه تربیتبدنی و علوم ورزشی، دانشکده علوم انسانی، دانشگاه آزاد اسلامی، واحد همدان، همدان، ایران | ||
3استادیار بیومکانیک ورزشی، گروه تربیتبدنی و علوم ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران. | ||
تاریخ دریافت: 20 خرداد 1397، تاریخ بازنگری: 04 تیر 1397، تاریخ پذیرش: 03 مرداد 1397 | ||
چکیده | ||
سابقه و هدف: ارتباط بین کینماتیک راه رفتن و نقص در شنوایی تاکنون به درستی شناخته نشده است. هدف پژوهش حاضر مقایسه متغیرهای کینماتیکی مفاصل اندام تحتانی طی راه رفتن در کودکان ناشنوا در مقایسه با کودکان سالم بود. روش شناسی:15 کودک ناشنوا با اختلال شنوایی دو طرفه (سن 79/1±26/11 سال) و 15 کودک سالم بهطور هدفمند بهعنوان گروه کنترل (سن 55/1±53/10 سال) انتخاب شدند. یک سیستم تحلیل حرکتی با چهار دوربین Vicon (Oxford Metrics, Oxford, UK) جهت ثبت دادههای کینماتیک اندام تحتانی (با فرکانس نمونهبرداری100 هرتز) استفاده شد. در این پژوهش شاخص عدم تقارن زوایای مفاصل اندام تحتانی طی فاز اتکا و نوسان راه رفتن محاسبه شد. در این مطالعه برای تحلیل آماری از تست تی مستقل استفاده شد و همچنین سطح معناداری برابر 05/0 گرفته شد. یافته ها: نتایج نشان داد که مقادیر پلنتارفلکشن مچ پای سمت راست در مرحله اتکا و نوسان راه رفتن در گروه ناشنوا نسبت به گروه سالم به ترتیب حدود 37 درصد (002/0=P) و حدود 93 درصد (012/0=P) بالاتر بود. همچنین اوج اولیه فلکشن زانو در اندام سمت چپ، طی مرحله اتکا راه رفتن در گروه ناشنوا کاهش معناداری نسبت به گروه سالم داشت (حدود 12 در صد؛ 022/0P=). مقادیر شاخص عدم تقارن اوج زاویه دورسی فلکشن مفصل مچ پا طی دو فاز اتکا (011/0P=) و نوسان (015/0=P) راه رفتن در گروه ناشنوا بزرگتر از گروه سالم بود. نتیجه گیری: کاهش اوج فلکشن زانو در لحظه تماس پاشنه با زمین و افزایش شاخص عدم در کودکان ناشنوا طی راه رفتن میتواند با نرخ آسیب بیشتر در این افراد مرتبط باشد. از این نتایج میتوان در پروتکل توانبخشی کودکان ناشنوا استفاده نمود. | ||
کلیدواژهها | ||
راه رفتن؛ کینماتیک؛ ناشنوا؛ عدم تقارن | ||
عنوان مقاله [English] | ||
Comparison of Lower Limb Kinematics in Deaf and Hearing Children during Walking | ||
نویسندگان [English] | ||
Amirhosein Sadri1؛ Mahdi Majlesi2؛ Amir Ali Jafarnezhadgero3 | ||
1Department of Physical Education and Sport Sciences, Faculty of Educational Science and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran | ||
2Assistant Professor of Sport Biomechanics, Department of Sport Biomechanics, Faculty of Humanities, Islamic Azad University, Hamedan Branch, Hamedan, Iran. | ||
3Department of Physical Education and Sport Sciences, Faculty of Educational Science and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran. | ||
چکیده [English] | ||
Background & Purpose: The link between gait kinematics and hearing loss is not well understood. The aim of this study was to compare lower limb kinematics during walking in children with hearing loss compared with healthy control ones. Methodology: Fifteen deaf children with bilateral hearing impairment and fifteen matched healthy control children, were purposefully selected. A four camera Vicon system (Oxford Metrics,UK) was used to record lower-body kinematic data. In this study, the asymmetric index of lower limb kinematics was calculated during the stance and swing phases of walking. In this study, independent t-test was used for statistical analysis. The significance level was set at P Results: The results showed that the values of the right ankle plantar flexion angle in the stance and swing phases of walking in the deaf group were higher than that the healthy group by 37% (P=0.002) and 93%, respectively. Also, the initial peak of the left knee flexion angle during stance phase of walking in the deaf group was lower than that in the healthy group. The values of the ankle dorsiflexion asymmetric index in the deaf group were greater than that in the healthy group during both stance (P=0.11) and swing (P=0.015) phases of the walking. Conclusion: Lower initial peak knee flexion and higher asymmetry index during walking in children with hearing loss could be associated with increased the rate of injuries in these individuals. These results could be used in the rehabilitation protocol of children with hearing loss. | ||
کلیدواژهها [English] | ||
Walking, Kinematics, Deaf, Asymmetry | ||
مراجع | ||
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