مقایسه طیف فرکانس منتخبی از عضلات اندام تحتانی در بیماران مبتلا به نوروپاتی دیابتی با همسالان سالم طی راه رفتن

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار بیومکانیک ورزشی، گروه تربیت بدنی و علوم ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران

2 دانشجوی دکتری فیزیولوژی ورزشی، گروه تربیت بدنی و علوم ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران

3 دانشجوی کارشناس ارشد بیومکانیک ورزشی، گروه تربیت بدنی و علوم ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران

چکیده

مقدمه و اهداف
هدف از پژوهش حاضر مقایسه طیف فرکانس منتخبی از عضلات اندام تحتانی در بیماران مبتلا به نوروپاتی دیابتی با همسالان سالم طی راه رفتن بود.
مواد و روش­ ها
نمونه آماری پژوهش حاضر شامل 20 بیمار مبتلا به نوروپاتی دیابتی (با میانگین سنی: 7/19±54/85، شاخص توده بدن: 5/03±28/38) و 10 فرد سالم (با میانگین سنی: 4/06±52/60، شاخص توده بدن: 1/86±26/74) بودند که به­ طور در دسترس انتخاب شدند. فعالیت الکتریکی عضلات منتخب اندام تحتانی با استفاده از دستگاه الکترومایوگرافی ثبت شد. تحلیل داده ­ها با استفاده از آزمون آماری t مستقل انجام شد.
یافته­ ها
طی مرحله پاسخ بارگیری در عضلات پهن داخلی، دوسررانی، نیم­وتری و سرینی میانی، طیف فرکانس در گروه بیماران به­ طور معناداری نسبت به گروه سالم بالاتر بود (0/05˂P). طی فاز میانه اتکا تمامی عضلات مورد بررسی کاهش در میانه طیف فرکانس را در گروه بیمار نشان دادند (0/05˂P). طی مرحله هل دادن تنها عضله دوقلوی داخلی فرکانس پایین­تری در گروه بیماران نسبت به گروه سالم داشت (0/05˂P). طی فاز نوسان عضلات پهن داخلی، دو سررانی، نیم­وتری و سرینی میانی به­طور معناداری طیف فرکانس کمتری در گروه بیماران نسبت به گروه سالم داشتند (0/05˂P).
نتیجه­ گیری
آسیب اعصاب محیطی بر اثر نوروپاتی دیابتی در بیماران با درجه متوسط نوروپاتی باعث الگوی غیرطبیعی فرکانس فعالیت عضلات اندام تحتانی این افراد طی راه رفتن می­شود. عوارض بیماری می­تواند تلاش بیش­ازحدی را بطلبد که خستگی زودهنگام را به دنبال دارد و همچنین کاهش ظرفیت عملکردی عضلات اندام تحتانی منجر به عدم کنترل مناسب نیروی عکس ­العمل زمین می­شود که احتمال آسیب و سقوط را در بیماران افزایش می­دهد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Comparison of Frequency Spectrum of the Selected Lower Limb Muscles between Patients with Diabetic Neuropathy and Healthy Peers during Walking

نویسندگان [English]

  • Amirali Jaafarnejad 1
  • Elahe Mamashli 2
  • Maryam Alizadeh 3
1 Assistant Professor of Sport Management, Department of Physical Education and Sport Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
2 2. Phd Student of Sport Physiology, Department of Physical Education and Sport Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
3 MSc Student of Sport Biomechanics, Department of Physical Education and Sport Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
چکیده [English]

Background and Aims: The aim of the present study was to compare the frequency spectrum of selected lower limb muscles between patients with diabetic neuropathy and healthy peers during walking.
Materials and Methods: The statistical sample of the present study included 20 patients (age: 54.85± 19.7, Body mass index: 28.38±5.03) with diabetic neuropathy and 10 healthy individuals (age: 52.60 ±4.06, Body mass index: 26.74 ±1.86) who were selected using convenience sampling. The electrical activity of selected lower limb muscles was recorded using electromyography system during walking. Independent sample t-test was used for statistical analysis.
Results: During loading response phase, the frequency spectrum in the vastus medialis, biceps femoris, semitendinosus, and gluteus medius muscles were significantly greater in the patient group compared with that in the healthy group (p < 0.05). During mid-stance phase, all of the selected muscles showed a lower median frequency values in the patient group (p < 0.05).Duringpush off phase, gastrocnemius muscle had lower frequency spectrum in patient group compared with the healthy group (p < 0.05). During swing phase, vastus medialis, biceps femoris, semitendinosus, and gluteus medius muscles had a significantly lower frequency spectrum in the patient group as compared with the healthy group (p < 0.05).
Conclusion: Damage to peripheral nerve due to diabetic neuropathy in patients with moderate neuropathy results in abnormal frequency contentment of lower limb muscles during walking. Also, lowering the functional capacity of the lower limb muscles can lead to a lack of proper control of the ground reaction forces, which could increase the likelihood of injury and falls in patients.

کلیدواژه‌ها [English]

  • diabetic neuropathy
  • Electromyography
  • frequency spectrum
  • gait
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