نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری آسیب‌شناسی و حرکات اصلاحی، دانشگاه اصفهان

2 استادیار بیومکانیک ورزشی، پژوهشگاه تربیت‌بدنی و علوم ورزشی

3 دانشیار ارتوپد فنی، دانشگاه علوم پزشکی شیراز

چکیده

هدف این مطالعه، بررسی ارتباط بین حداکثر گشتاور مفاصل اندام تحتانی با حداکثر نیروی عکس‌العملزمین در تکلیف فرود تک‌پا بود. 30 ورزشکار به‌صورت داوطلبانه در این مطالعه شرکت کردند. متغیرهای کینتیکی و کینماتیکی اندام تحتانی طی فرود تک‌پا، توسط دستگاه تحلیل حرکت و صفحه‌نیرو جمع آوری شدند. نتایج آماری نشان داد که ارتباط معناداری بین حداکثر گشتاور فلکشن، اداکشن و روتشین هیپ و مفصل مچ پا با حداکثر نیروی عکس‌العملزمینوجود ندارد؛ اما ارتباط معناداری بین حداکثر گشتاور مفصل زانو و مفصل تحت‌قاپی با حداکثر نیروی عکس‌العمل عمودی زمین وجود دارد. یافته‌ها نشان داد که بین نیروی عکس‌العمل عمودی زمین و گشتاور زانو و مفصل تحت‌قاپی ارتباط وجود دارد؛ بنابراین، هرچه میزان نیروی عکس‌العمل عمودی زمین بیشتر باشد، میزان باری که به این دو مفصل وارد می‌شود بیشتر است و می‌تواند این دو مفصل را درمعرض‌ آسیب بیشتر قرار دهد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The Relationship between Maximum Lower Extremities Joint Moment with Maximum Vertical Ground Reaction Force during Single Leg Drop Landing

نویسندگان [English]

  • Faraj Fatahi 1
  • Ali Sharifnezhad 2
  • Mohammad Taghi Karimi 3

1 PhD Student of Sports Injury and Corrective Exercises, University of Isfahan

2 Assistant Professor of Sport Biomechanics, Sport Science Research Institute of Iran

3 Associate Professor of Sport Biomechanortopedic, Shiraz University of Medical Sciences

چکیده [English]

The objective of this study was to evaluate the relationship between maximum lower extremities joint moment with maximum ground reaction force during single leg drop landing. Thirty athletes volunteered to participate in this study. Kinetics and kinematics variables during single leg drop landing were collected by motion analysis and force plate. The results indicated that there was no significant correlation between peak moment of flexion, adduction and rotation of hip and ankle joint with maximum vertical ground reaction force. However, significant correlation was identified between peak moment of knee and subtalar joint with maximum ground reaction force. The findings of this study showed that there is a relationship between vertical ground reaction force and moment of knee and subtalar joint. Therefore, whatever the vertical ground reaction force is higher, the amount of load to this joints is more and can make the joints more susceptible to injury.

کلیدواژه‌ها [English]

  • Moment
  • Lower Extremities
  • Vertical Ground Reaction Force
  • Inverse Dynamics
  • Single Leg Drop Landing
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