بررسی اثر کفی تکسچر بر طیف فرکانس نیروهای عکس‌العمل زمین در کودکان دارای طیف اتیسم طی راه رفتن

نوع مقاله: مقاله پژوهشی

نویسندگان

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

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

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

چکیده

مقدمه و اهداف
استفاده از کفی تکسچر در افراد اتیسم می­تواند بر مکانیزم راه رفتن تأثیرگذار باشد. این عامل در طی راه رفتن، عامل بالقوه­ای در تغییر محتوای فرکانسی نیروهای عکس­ العمل زمین می­باشد. هدف از پژوهش حاضر، بررسی اثر کفی تکسچر بر طیف فرکانس نیروهای عکس­ العمل زمین در کودکان دارای اتیسم طی راه رفتن بود.
مواد و روش­ ها
تحقیق حاضر از نوع نیمه ­تجربی بود. جمعیت مورد مطالعه کودکان دارای طیف اتیسم و نوع نمونه ­گیری در دسترس انتخاب شد. 10 کودک اتیسم به­صورت هدفمند با دامنه سنی 7-8 سال در تحقیق حاضر شرکت کردند. برای اندازه ­گیری محتوای فرکانسی نیروهای عکس ­العمل زمین با و بدون کفی تکسچر و پای برهنه از دستگاه فوت­ اسکن ) نرخ نمونه ­برداری: 300 هرتز)استفاده شد. برای تجزیه­ و ­تحلیل داده ­های آماری از آزمون آنالیز واریانس با اندازه­ های تکراری استفاده شد.
یافته­ها
نتایج تحقیق حاضر نشان داد که طیف فرکانس نیروهای عکس ­العمل زمین در هیچ­یک از متغیر­های مولفه­ ی عمودی نیرو­های عکس­ العمل زمین، انگشت شست پا و انگشتان 2 تا 5 در سه شرایط پای برهنه، کفش و کفی LP معنادار نبوده است (0/05<P). همچنین تعداد هارمونی­ های ضروری در استخوان کف­ پایی سوم در شرایط راه رفتن با کفی در مقایسه با پای برهنه 29/32 درصد کمتر بوده است (0/044=P، 1/13=d). به­ علاوه، تعداد هارمونی­ های ضروری در استخوان کف پایی پنجم در شرایط راه رفتن با کفی در مقایسه با کفش 27/19درصد کمتر بوده است (0/031=P، 1/33=d).
نتیجه­ گیری
تحقیق حاضر نشان داد استفاده از کفی باعث کاهش تعداد هارمونی­ های ضروری در استخوان کف پایی در مقایسه با راه رفتن با کفش گردید، اما بر اکثر متغیرهای طیف فرکانس در اکثر نقاط کف پایی تاثیر معناداری را نشان نداد؛ بنابراین می­توان استفاده از این کفی را برای افراد نابینا توصیه نمود. انجام پژوهش­ های بیشتر در این زمینه توصیه می ­شود.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effect of Texture Insole on the Frequency Spectrum of Ground Reaction Forces in Children with Autism Spectrum Disorder during Walking

نویسندگان [English]

  • Mahrokh Dehghani 1
  • Amirali Jaafarnejad 2
  • Mohammad Abdollahpour Darvishani 3
1 Department of Physical Education and Sport Sciences, Faculty of Educational Science and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
2 Assistant Professor of Sport Management, Department of Physical Education and Sport Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
3 MSc. of Sport Biomechanics, Department of Physical Education and Sport Sciences, Faculty of Education Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
چکیده [English]

Background and Aims: Using textured insoles in Autism Spectrum Disorder (ASD) individuals could be effective during walking. This factor is a major cause to change the frequency spectrum of ground reaction forces during walking. The aim of the present study was to evaluate the effect of texture insoles on the frequency spectrum of ground reaction forces in children with ASD during walking.
Materials and Methods: A quasi-experimental study was conducted on children with Autism Spectrum Disorder selected via available sampling. A total of 10 girls with ASD participated in the present study with the age range of 7-8 years old. A foot scan system (sampling rate: 300Hz) was used to assess frequency spectrum of ground reaction forces during walking with and without textured insoles and bare foot condition. Repeated measures ANOVA was used for statistical analyses.
Results: The results did not show any significant difference in the frequency spectrum of ground reaction forces in the vertical direction, hallux 1, and toes 2-5 among the three conditions of bare foot, shoe, and LP insole (p>0.05). Also, the number of essential harmonies in the third metatarsal during insole condition was lower than that for bare foot condition by 29.32% (p=0.044, d= 1.13).  In addition, the number of essential harmonies of the fifth metatarsal during insole condition was lower than that of shoe condition by 27.19% (p= 0.031, d=1.33).
Conclusion: The present study showed that the use of textured insole reduced the number of essential harmonics in the fifth metatarsal as compared to shoe walking and, therfore, could be recommended for the blind. However, it did not show any significant effect on most of the frequency spectral variables.  Yet, further study is warranted.

کلیدواژه‌ها [English]

  • frequency spectrum of ground reaction
  • Autism
  • Walking
  • texture insole
 

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