تأثیر استفاده از فناوری نانو در زیره کفش ورزشی بر توان مچ پا در فاز اتکای دویدن

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشیار بیومکانیک ورزشی، دانشگاه مازندران ،ایران

2 کارشناس ارشد بیومکانیک ورزشی، دانشگاه مازندران،ایران

چکیده

سابقه و هدف: اصلاح ساختار زیره کفش‌های ورزشی به عنوان عاملی اثرگذار بر سینتیک و سینماتیک دویدن در راستای بهبود متغیرهای وابسته به توان همواره مورد توجه سازندگان کفش بوده است. هدف این مقاله بررسی تأثیر استفاده از نانو ذرات کلی در زیره کفش ورزشی بر توان مچ پا در فاز اتکا دویدن می‌باشد.
مواد و روش‌ها: 18 آزمودنی مرد سالم با میانگین سنی 6± 23 سال، قد 4±178 سانتی‌متر و وزن 8 ± 71 کیلوگرم با سه کفش ورزشی با جنس زیره پلی‌اورتان (PU)، نانوکامپوزیت پلی‌اورتان-کلی 1درصد (NPU1) و 2درصد (NPU2) با سرعت 5/3 متر بر ثانیه دویدند. توان مچ ‌پا با استفاده از دینامیک معکوس در سه صفحه حرکتی با استفاده از نرم‌افزار 2010MATLAB محاسبه و با آزمون آنالیز واریانس یک سویه با اندازه‌های مکرر در نرم‌افزار 20SPSS مورد تحلیل آماری قرار گرفت.
یافته‌ها: نتایج نشان داد که استفاده از نانو ذرات کلی در زیره کفش ورزشی بر اوج تولید توان در هر سه صفحه حرکتی به طور معناداری اثرگذار بود (05/0Pنتیجه‌گیری: کفش ورزشی با زیره (NPU) سبب بهبود عملکرد ورزشکار در صفحه ساجیتال و حفظ ثبات مچ پا در صفحه هوریزانتال می‌شود، درحالی‌که ممکن است حفظ تعادل مچ پا را در سطح فرونتال دشوارتر نماید.
 

کلیدواژه‌ها


عنوان مقاله [English]

The Effect of Nanoclay Particles in Sport Shoe Outsole on Ankle Power during Stance Phase of Running

نویسندگان [English]

  • . . 1
  • . . 2
1 .
2 .
چکیده [English]

Background: For years, athletic footwear companies tried to modify the shoe outsole construction as an effective factor influencing on kinetic and kinematic parameters of running aiming to improve the energetic parameters of motion. The aim of this study is to investigate the effect of Nanoclay particles in sport shoe outsole on ankle joint power during stance phase of running.
Methodology: Eighteen healthy shod runner males were recruited to run three times at 3.5 m.s-1 under PU, NPU1 and NPU2 shoes. The three-dimensional ankle and knee joint power were determined using the inverse dynamic approach by MATLAB2010 and analyzed by SPSS20 using one-way repeated measures ANOVA.
Results: The result showed that the positive peaks of ankle joint power in all three-dimensional planes significantly influenced by NPU shoe. However, the Running with NPU had not any effect on negative peaks of ankle joint power in all planes.
Conclusion: Running with NPU can improve performance in the sagittal plane and facilitate the stability of the ankle joint in the horizontal plane. While it makes balancing the ankle joint more difficult in the frontal plane.

کلیدواژه‌ها [English]

  • joint power
  • Running
  • Shoe
  • Nano Clay Particles
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