اثرات استفاده طولانی مدت از کفش کنترل حرکتی روی طیف فرکانس نیروهای عکس العمل زمین طی دویدن در دونده های پای پرونیت

نوع مقاله: مقاله پژوهشی

نویسندگان

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

2 دانشگاه محقگروه تربیت بدنی و علوم ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایرانق اردبیلی

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

4 دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران.

چکیده

مقدمه و اهداف
عوامل گوناگونی می­تواند فعالیت ورزشکاران را تحت تاثیر قرار دهد که یکی از این عوامل مهم، پرونیشن بیش از حد پا می­باشد. هدف از پژوهش حاضر، بررسی اثر استفاده طولانی­مدت از کفش کنترل حرکتی روی طیف فرکانس نیروهای عکس­ العمل زمین در افراد دارای پای پرونیت طی دویدن می­باشد.
مواد و روش­ ها
پژهش حاضر از نوع نیمه ­تجربی و آزمایشگاهی بود. 30 دونده مرد دارای پای پرونیت در دو گروه کنترل و تجربی قرار گرفتند. از صفحه نیروی برتک جهت ثبت نیروهای عکس­العمل زمین استفاده شد. گروه کنترل از کفش معمولی (Supernova Control, Adidas) و گروه تجربی از کفش کنترل حرکتی (Supernovacushion, Adidas) به مدت 5 ماه در تمرینات خود استفاده کردند. آزمون ناپارامتریک ویلکاکسون جهت تحلیل آماری در سطح معناداری 05/0 استفاده شد.
یافته­ ها
نتایج پژوهش حاضر در گروه تجربی نشان دهنده­ی این بود که مولفه­ی فرکانس توان 5/99 درصد در راستای عمودی طی پس­آزمون در مقایسه با پیش­آزمون کاهش معناداری داشت (023/0=P). در راستای داخلی-خارجی نیز مولفه­ی باند فرکانس طی پس­آزمون در مقایسه با پیش­آزمون افزایش معناداری را نشان داد (041/0=P). سایر مولفه­های طیف فرکانس نیروهای عکس­العمل زمین هیچ­گونه تفاوت معناداری را در گروه تجربی نشان ندادند (05/0<P).
نتیجه ­گیری
با توجه به نتایج، می­توان بیان کرد که استفاده طولانی­مدت از کفش­های کنترل حرکتی می­تواند در حفظ ثبات اندام تحتانی و تعادل در دوندگانی که از این نوع کفش استفاده می­کنند، موثر باشد و همچنین ارتقاء و بهبود عملکرد ورزشی در این ورزشکاران را نیز داشته باشد. به علاوه پهنای باند فرکانس افزایش معناداری را نشان داد که می­تواند باعث افزایش درد در اجزای حرکتی و بافت­های همبند شود و این افزایش می­تواند به علت افزایش به کارگیری این اجزا در حرکت باشد؛ از این رو می­توان این امر را به عنوان یک اثر منفی برای استفاده طولانی­مدت از کفش کنترل حرکتی بیان کرد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Investigating the Effects of Long-Term Use of Motion Control Shoes on the Frequency Spectrum of Ground Reaction Force during Running in the Runners with Pronated Feet

نویسندگان [English]

  • Aidin Valizade-Orang 1
  • Marefat Siahkoohian 2
  • AmirAli Jafarnezhadgero 3
  • Lotfali Bolboli 4
  • Farshad Ghorbanlou 1
1 Assistant Professor, Sport physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
2 Department of Physical Education and Sport Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
3 Department of Physical Education and Sport Science, Faculty of Education and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
4 Department of Physical Education and Sport Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
چکیده [English]

Background and Aims: Various factors can affect athletes’ performance one of which is over pronation of the foot. The purpose of the present study was to investigate the effects of long-term use of motion control shoes on the frequency spectrum of ground reaction force during running in runners with pronated feet.
Materials and Methods: The current study was a semi-experimental and laboratory investigation. The sample consisted of 30 male runners with pronated foot who were divided into experimental and control groups. The Bertec force plate was used to record ground reaction forces. Control group used normal shoes (Supernova control, Adidas) and experimental group used the motion control shoes (Supernovacushion, Adidas) during five months in their training sessions. Non-parametric Wilcoxon test was used for statistical analysis at the significance level of 0.05.
Results: The results of the experimental group showed that the frequency component with a power of 99.5% in vertical direction during the post-test compared with the pre-test was significantly decreased (P=0.023). In the medio-latral direction, the frequency band component during the post-test showed a significant increase compared to the pre-test (P=0.041).Other components of the frequency spectrum of ground reaction forces have no significant difference in the experimental group (P<0.05).
Conclusion: Regarding the results, it can be argued that long-term use of motion control shoes can help maintain lower limb stability and balance in runners, as well as improve performance in them. Also, the frequency band showed a significant increase, which increased the pain in motor components and connective tissues, and this increase could be due to the increase in using these components in motion. Therefore, it can be described as a negative effect on the long-term use of motion control shoes.

کلیدواژه‌ها [English]

  • Pronated feet
  • motion control shoes
  • frequency spectrum
  • Running
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دوره 8، شماره 4
زمستان 1398
صفحه 123-131
  • تاریخ دریافت: 01 بهمن 1397
  • تاریخ بازنگری: 29 اسفند 1397
  • تاریخ پذیرش: 29 اردیبهشت 1398