آیا کفش ناپایدار فعالیت عضلات منتخب مچ پا را در شرایط متفاوت راه رفتن افزایش می دهد؟

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری حرکات اصلاحی، دانشگاه تهران، تهران، ایران.

2 استاد گروه آسیب‌شناسی و حرکات اصلاحی، دانشگاه تهران، تهران، ایران

3 استادیار گروه آسیب‌شناسی و حرکات اصلاحی، دانشگاه تهران، تهران، ایران.

4 استادیار گروه فیزیولوژی ورزشی، پژوهشکده طب ورزشی، پژوهشگاه تربیت بدنی و علوم ورزشی، تهران، ایران.

چکیده

سابقه و هدف: کفش­های معمولی حمایت قابل توجهی از پا می­کنند. به همین علت در طولانی مدت با ایجاد ضعف و عدم تعادل عضلانی، اندام تحتانی و کمر را مستعد آسیب می­کنند. احتمالاً بی­ثباتی طبیعی در کفش­های ناپایدار منجر به افزایش فعالیت برخی از عضلات به منظور حفظ تعادل می­شود، لذا هدف از پژوهش حاضر مقایسه میزان فعالیت برخی از عضلات مچ پا در دو نوع کفش معمولی و ناپایدار حین راه رفتن روی شیب مثبت و بالا و پایین آمدن از پله می­باشد.
مواد و روش­ها: 12 نفر دانشجوی دختر دانشگاه تهران با میانگین سنی 27/2±82/25 سال، قد 71/5±86/162 سانتی­متر و توده بدن 59/8±51/53 کیلوگرم به صورت داوطلبانه در پژوهش شرکت کردند. فعالیت عضلات دوقلو داخلی، نازک­نی بلند، درشت­نی قدامی و نعلی حین راه رفتن روی شیب مثبت، بالارفتن و پایین آمدن از پله در دو نوع کفش (ناپایدار و معمولی) ثبت گردید. داده­ها با آزمون تحلیل واریانس چند متغیری در سطح معناداری 05/0P≤ تجزیه­ و ­تحلیل شدند.
یافته­ ها: نتایج نشان داد اثر کفش ناپایدار بر فعالیت عضلانی معنادار نیست (راه رفتن روی شیب مثبت 96/0=P، بالا رفتن از پله 96/0=P و پایین آمدن از پله 88/0=P).
نتیجه ­گیری: کفش ناپایدار نمی­تواند نسبت به کفش معمولی اثرات مفیدی روی فعالیت عضلات منتخب مچ پا حین راه رفتن روی شیب مثبت، بالا رفتن و پایین آمدن از پله داشته باشد.

کلیدواژه‌ها


عنوان مقاله [English]

Does unstable shoe increase selected ankle muscle activities during different walking task conditions?

نویسندگان [English]

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چکیده [English]

Background & Purpose: Conventional shoes due to considerable protection from foot may lead to weakness and muscle imbalance in long-term, so lower limb and back become prone to injury. Natural instability possibility in unstable shoe may lead to increase in activity of some ankle muscles to maintain balance. Thus, the purpose of this study was to compare muscle activity of selected ankle joint muscles in both conventional and unstable shoes during upslope walking, climbing stairs and descend the stair.
Methodology: Twelve female students with mean age of 25.82 ± 2.27 years, height of 162.86 ± 5.71 cm and body mass of 53.51 ± 8.59 kg participated in this study voluntarily. Root mean square medial gastrocnemius, peroneus longus, anterior tibialis and soleus activity during upslope walking, climbing stairs and descend the stair muscles were determined with electromyographic (EMG) signals when walking with conventional shoes and with unstable shoes. Data were analyzed by using analysis of variance with repeated measures at the level of significance of P≤0.05.
Results: Root mean square wasn't significantly greater in the unstable compared to the conventional shoes for all tested condition (upslope walking: P=0.344, up stair: P=0.698, down stair: P=0.192)
Conclusion: The unstable shoe seemed to was not advantageous rather than conventional shoe for the selected ankle muscle activities during upslope walking, climbing stairs and descend the stair.

کلیدواژه‌ها [English]

  • Electromyography
  • Stair
  • Unstable Shoes
  • Walking
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