تأثیر دفورمیتی ژنوواروم بر کنترل پاسچر بدن حین راه رفتن و دویدن در مردان فعال

نوع مقاله: مقاله پژوهشی

نویسندگان

1 کارشناس ارشد، گروه بیومکانیک ورزشی، دانشکده تربیت‌بدنی و علوم ورزشی، دانشگاه خوارزمی تهران، ایران

2 استاد گروه بیومکانیک ورزشی، دانشکده علوم ورزشی، دانشگاه خوارزمی، تهران، ایران

3 استادیار گروه بیومکانیک ورزشی، دانشکده علوم ورزشی، دانشگاه خوارزمی، تهران، ایران

چکیده

زمینه و هدف: دفورمیتی ژنوواروم به‌عنوان عاملی برای برهم زدن خط جاذبه و الگوی نیرو در اندام تحتانی معرفی شده است که می­تواند موجب اختلال در کنترل پاسچر و افزایش خطر آسیب‌دیدگی حین فعالیت­های ورزشی ­شود. هدف از انجام این تحقیق بررسی اثر دفورمیتی ژنوواروم بر شاخص کنترل پاسچر بدن حین راه رفتن و دویدن بود.
مواد و روش­ها: 30 دانشجوی مرد فعال برحسب وضعیت زانویشان در دو گروه ژنوواروم (15 نفر) و نرمال (15 نفر) قرار گرفتند. شاخص کنترل پاسچر (تغییرات مرکز جرم به مرکز فشار) در دو جهت قدامی- خلفی و داخلی- خارجی با استفاده از دو دستگاه صفحه نیرو ثبت و محاسبه شد. از آزمون MANOVA برای بررسی اختلافات بین گروهی و آزمون تی وابسته برای بررسی اختلافات درون‌گروهی در سطح معناداری 05/0>p استفاده شد.
یافته­ ها: تغییرات مرکز جرم به فشار در جهت قدامی- خلفی بین گروه­های آزمایشی حین راه رفتن (038/0=p) و دویدن (01/0=p) در اندام برتر و دویدن در اندام غیربرتر (002/0=p) معنادار بود، اما در جهت داخلی- خارجی اختلاف معناداری در هیچ‌کدام از متغیرها مشاهده نشد. همچنین بین اندام برتر و غیربرتر در هیچ‌کدام از جهات در هر دو گروه تفاوت معناداری مشاهده نشد.
نتیجه­ گیری: انحراف مکانیکی ناشی از دفورمیتی ژنوواروم با وجود اینکه در صفحه فرونتال اتفاق می­افتد، اما می­تواند صفحه ساجیتال را نیز دستخوش تغییر ­سازد و باعث کاهش معنادار شاخص کنترل پاسچر در صفحه ساجیتال شود، بنابراین پیشنهاد می­شود در طراحی برنامه­های اصلاحی و تعادلی این افراد، کلیه صفحات حرکتی مورد توجه قرار گیرد.

تازه های تحقیق

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کلیدواژه‌ها


عنوان مقاله [English]

The Effect of Genu Varum Deformity on Posture Control During Walking and Running in Active Male

نویسندگان [English]

  • Hosein Tajdini kakavandi 1
  • Heidar Sadeghi 2
  • Ali Abbasi 3
1 Department of Sport Biomechanics, School of Physical Education and Sport Sciences, Kharazmi University of Tehran, Iran
2 Department of Sport Biomechanics, Faculty of Physical Education and Sport Sciences, Kharazmi University, Tehran, Iran
3 Department of Sport Biomechanics, Faculty of Physical Education and Sport Sciences, Kharazmi University, Tehran, Iran
چکیده [English]

Background&Purpose: Genu varum deformity is known as a factor disrupting gravity line and force pattern in lower limb that can cause disorder in posture control and the increase of injury while doing sports. This study investigated the effect of genu varum deformity on posture control index during walking and running.
Material and Methods: Thirty active men were categorized into two groups of genu varum (15) and normal (15) based on their knee posture. Posture control index (center of mass changes to center of pressure) in two directions of anterior – posterior and medial-lateral using force plate was recorded and analyzed. Data were analyzed utilizing MANOVA for between-group differences and paired samples t-test for within-group differences at a.05 level of significance.
Results: Cop-com in anterior-posterior direction for the experimental groups while walking (p=0.038) and running (p=0.01) in the dominant limb and while running in the non-dominant limb (p=0.002) yielded a significant value, but in medial-lateral direction, no significant difference was observed for the variables. In addition, regarding the dominant and non-dominant limb, a significant value was observed for none of the directions.
Conclusion: The findings of this study indicated that mechanical departure resulting from genu varum deformity, though residing in frontal plate, can influence the sagittal plate too and cause the significant decrease of posture control in the sagittal plate. The findings imply that when designing balance schedules and exercising activities for those suffering from genu varum deformity, besides frontal plate in which deformity takes place, the sagittal plate be considered too.

کلیدواژه‌ها [English]

  • Genu Varum
  • Posture Control
  • Walking
  • Running
  • Active Male
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