مطالعات طب ورزشی

تعیین معادلات مقیاس‌گذاری آلومتریک برای رفتار الاستیک بدن انسان در اجرای حرکت کانگورویی هاپینگ با شیوه‌ها و راهبردهای مختلف

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دکترای بیومکانیک ورزشی، استادیار پژوهشگاه علوم ورزشی ایران، تهران، ایران (نویسنده مسئول)

2 دکترای بیومکانیک ورزشی، استاد دانشگاه خوارزمی تهران، ایران.

3 دکترای مهندسی پزشکی، استادیار دانشگاه تهران، تهران، ایران.

چکیده
مطالعة حاضر با هدف تعیین معادلات آلومتریک سفتی پا انجام شد که  مهم‌ترین پارامتر تعیین‌کنندة رفتار الاستیک بدن است. 30 مرد جوان سالم به‌طور داوطلبانه در این پژوهش شرکت کردند و آزمون هاپینگ عمودی را روی صفحة نیرو و در برابر دوربین سرعت‌ بالا انجام دادند. پس از محاسبۀ سفتی پا، ارتباط آن با ویژگی‌های فردی آزمودنی‌ها نظیر جرم، قد، شاخص تودة بدن و سن، از طریق آزمون همبستگی پیرسون تعیین شد. برای تشکیل معادلات آلومتریک، از تحلیل رگرسیونی استفاده شد. بین سفتی پای تعیین‌شده در هاپینگ کنترلی با جرم آزمودنی‌ها روابط معنادار و مثبت مشاهده شد. معادلة مقیاس‌گذاری آلومتریک برای سفتی پای دوطرفه به‌صورت 1/1M190Kbilateral=، برای سفتی پای برتر به‌صورت 84/0M501Kdominant= و برای سفتی پای غیربرتر به‌صورت 82/0M190Knondominant= به­دست آمد. این معادلات، مبنایی برای نرمال‌سازی صحیح رفتار الاستیک بدن به­وجود می‌آورند و برآورد سفتی پارا بر اساس جرم افراد امکان‌پذیر می‌کنند.

کلیدواژه‌ها

عنوان مقاله English

Determination of allometric scaling equations for elastic behavior of human body during kangaroo-like hopping in different styles and strategies

نویسندگان English

  • Mojtaba Ashrostaghi 1
  • Heydar Sadeghi 2
  • Elham Shirzad 3
1 Sports medicine department, Sport sciences research institute of Iran
2 Department of Physical education & Sport Sciences, Kharazmi University
3 Assistant Professor of Corrective Exercises and Sports Injuries, University of Tehran
چکیده English

The purpose of the current study was to determine allometric equations for leg stiffness, the main parameter of elastic behavior of human body. 30 young healthy men participated voluntarily in this study and performed vertical hopping test on a force plate and in front of a high-speed camera. Leg stiffness was calculated by a MATLAB program. The relationships between leg stiffness and individual characteristics such as body mass, height, BMI and age were determined by Pearson correlation test and the allometric equations were formed by regression analysis. Positive significant correlations were observed between leg stiffness of controlled hopping test and subjects body mass. Allometric scaling equations were Kbilateral=190M1.1 for bilateral leg stiffness, Kdominant=501M0.84 for dominant leg stiffness and Knondominant=549M0.82 for non-dominant leg stiffness. These equations can be the base of correct normalizing of human body elastic behavior and allow to leg stiffness estimation by body mass.

کلیدواژه‌ها English

  • elastic behavior
  • leg stiffness
  • allometry
  • body size
  • normalizing
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مطالعات طب ورزشی
دوره 12، شماره 28
مهر 1399
صفحه 71-88

  • تاریخ دریافت 09 اسفند 1399
  • تاریخ بازنگری 01 اردیبهشت 1400
  • تاریخ پذیرش 07 اردیبهشت 1400

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