اثر استفاده طولانی مدت از کفش کنترل حرکتی بر روی طیف فرکانس عضلانی در افراد دارای پای پرونیت طی فاز اتکای راه رفتن

نوع مقاله: مقاله پژوهشی

نویسندگان

1 استادیار بیومکانیک ورزشی، دانشکده روانشناسی و علوم تربیتی، دانشگاه محقق اردبیلی، اردبیل، ایران.

2 دانشجوی کارشناسی ارشد بیومکانیک ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران

3 استاد تمام فیزیولوژی ورزشی، گروه تربیت بدنی و علوم ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران

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

چکیده

مقدمه و اهداف
پرونیشن بیش از حد پا قوس طولی-داخلی پا را درگیر می­کند و با سایر اختلالات آناتومیکی مرتبط است. هدف از پژوهش حاضر بررسی اثرات استفاده طولانی­مدت از کفش کنترل حرکتی روی طیف فرکانس فعالیت الکترومایوگرافی عضلات در افراد دارای پرونیشن بیش از حد پا طی راه رفتن بود.
مواد و روش ها
پژوهش حاضر از نوع نیمه­ تجربی و آزمایشگاهی بود. نمونه آماری پژوهش حاضر شامل 24 مرد دارای پای پرونیت بودند که داوطلب شرکت در پژوهش حاضر شدند. آزمودنی­ ها به طور تصادفی در دو گروه کنترل (سن: 45±24/1 سال، قد: 2/2±166سانتی­متر، وزن: 6/3±52/66کیلوگرم) گروه تجربی (سن: 5/4±24/1سال، قد: 2/2±166سانتی­متر، وزن: 6/3±52/66 کیلوگرم) تقسیم شدند. فعالیت الکتریکی عضلات اندام تحتانی و تنه، قبل و بعد از 4 ماه استفاده از کفش کنترل حرکتی و کفش معمولی طی راه رفتن با دستگاه الکترومایوگرافی ثبت شد. از تست ویلکاکسون، یو­من­ویتنی و فریدمن جهت تحلیل داده ­ها استفاده شد.
یافته ­ها
نتایج تحقیق حاضر نشان داد طیف فرکانس عضله پهن خارجی (0/003=P؛ اندازه اثر بالا) افزایش معنی­داری را طی پس­ آزمون در مقایسه با پیش­ آزمون داشت. همچنین در گروه تجربی عضله سرینی میانی (0/015=P؛ اندازه اثر بالا) افزایش معنی­داری را طی پس ­آزمون در مقایسه با پیش­ آزمون نشان داد. سایر عضلات اختلاف معنی­ داری را نشان ندادند (0/05<P).
نتیجه ­گیری
به طور کلی، استفاده از کفش کنترل حرکتی سبب تغییر در فرکانس فعالیت عضلات اندام تحتانی می ­شود. مطالعات بیشتری در ارتباط با نحوه اثرات طولانی­مدت کفش کنترل حرکتی بر مکانیک بدن مورد نیاز می ­باشد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effect of Long-term Use of Motion Control Shoes on Muscular Frequency Spectrum in Individuals with Pronated Feet during Walking

نویسندگان [English]

  • AmirAli Jafarnezhadgero 1
  • Amir Fatollahi 2
  • Marefat Siahkuhian 3
  • Aydin Valizadehorang 4
1 PhD, Department of Physical Education and Sport Science, Faculty of Education and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
2 MSc in Sport Biomechanics, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
3 PhD, Professor. Sport physiology, Dept. of Physical Education and Sport Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
4 PhD, Assistant Professor. Sport physiology, Dept. of Physical Education and Sport Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
چکیده [English]

Background and Aims:Pronated foot involves the reduction of the inner longitudinal arch of the foot that is associated with other anatomical abnormalities. The purpose of the present study was to investigate the effects of long-term use of motion control shoes on the muscular frequencyspectrum in individuals with pronated foot during walking.
Materials and Methods:A semi-experimental and laboratory study was conducted on 24 men with pronated foot who took part in the study on a voluntary basis. They were randomly divided into two equal groups, including control (age: 24.1±5.6 years, height: 166±2.6, weight: 52.66±6.3 kg) and experimental (age: 24.1±5.6 years, height: 166±2.2 cm, weight: 52.66±6.3 kg). The electrical activity of the lower limb and trunk muscles were recorded using electromyography system during walking before and after four months of wearing control and motion control shoes. Wilcoxon, U Mann-Whitney, and Friedman tests were used to analyze the data.
Results:The findings showed that the frequency spectrum of the vastus lateralis muscle (P = 0.003; high effect size) significantly increased during the post-test compared with that of the pre-test. Also, in the experimental group, the gluteus medius muscle (P=0.015; high effect size) showed a significant increase in frequency spectrum during the post-test compared with the pre-test. Other muscles did not show any significant difference before and after long-term use of motion control shoes (P >0.05).
Conclusion:Generally, the long term use of motion control shoes change lower limb muscular frequency spectrum. Further studies on the long term effects of motion control shoes on body mechanics are suggested.

کلیدواژه‌ها [English]

  • motion control shoes
  • Pronation
  • frequency spectrum
  • Walking
  • Electromyography
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مقالات آماده انتشار، اصلاح شده برای چاپ
انتشار آنلاین از تاریخ 17 شهریور 1398
  • تاریخ دریافت: 15 اردیبهشت 1398
  • تاریخ بازنگری: 04 تیر 1398
  • تاریخ پذیرش: 16 شهریور 1398