نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناسی ارشد بیومکانیک ورزشی، گروه بیومکانیک ورزشی و رفتار حرکتی، دانشکده علوم ورزشی، دانشگاه مازندران، بابلسر، ایران

2 استادیار بیومکانیک ورزشی، گروه بیومکانیک ورزشی و رفتار حرکتی، دانشکده علوم ورزشی، دانشگاه مازندران، بابلسر، ایران

3 استاد فیزیولوژی ورزشی، گروه فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه مازندران، بابلسر، ایران

چکیده

این پژوهش با هدف بررسی اثر شش هفته تمرین روی سطح شن بر متغیر‌های بیومکانیکی مرتبط با آسیب رباط صلیبی قدامی در دختران فوتسالیست نوجوان حین حرکت برش انجام شد. داده‌های 12 آزمودنی، قبل و متعاقب شش هفته تمرین روی ‌سطح شن به هنگام برش‌های 45 و 90 درجه توسط صفحه نیروسنج و دوربین ثبت شد. مقایسه‌ بین متغیر پژوهش در پیش‌آزمون و پس‌آزمون از طریق آزمون تحلیل واریانس دو عاملی انجام شد. زاویه‌ی‌ فلکشن زانو در لحظه‌ تماس اولیه در برش 45 در پس‌آزمون بیشتر از برش 90 درجه بود. گشتاور اداکتور خارجی زانو و سرعت حرکت در جهت قدامی خلفی بعد از تمرین روی سطح شن در برش‌های 45 و 90 درجه افزایش یافت. براین اساس، تمرینات روی سطح شن از طریق افزایش سرعت اجرا باعث بهبود عملکردشده و از سوی دیگر سبب افزایش بار روی مفصل زانو شده است که ضرورت ارایه راهکارهایی از قبیل ارایه تمرینات بهبود تکنیک در کنار این پروتکل تمرینی را نشان می‌دهد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The Effect of Six Weeks Sand Surface Training on the Biomechanical Variables Associated with Anterior Cruciate Ligament Injury and side-cutting performance in Adolescent Female Futsal Players

نویسندگان [English]

  • Gelare Jalilian 1
  • sayed Esmaeil Hosseininejad 2
  • Fatemeh Salari-Esker 2
  • shadmehr mirdar 3

1 Master of Science in Sport Biomechanics, Department of Motor Behavior and Sports Biomechanics, Faculty Sports Scinces, University of Mazandran, Babolsar, Iran

2 Assistant Professor of Sport Biomechanic, Department of Sports Biomechanics, Faculty Sports Scinces, University of Mazandran, Babolsar, Iran

3 Professor of Sports physiology, Department of Sports physiology, Faculty Sports Scinces, University of Mazandran, Babolsar, Iran

چکیده [English]

The aim of this study was to assess the effect of six-week sand surface training on the biomechanical variables associated with an anterior cruciate ligament injury in female adolescent futsal players during cutting. The data collected from 12 subjects were recorded before and after 6 weeks of training on the sand surface during 45- and 90-degree cuts by a force plate and cameras. Comparisons between variables in pre- and post-tests were performed using mixed ANOVA. During the initial contact, knee flexion was greater in the cut of 45° than 90° in post-test condition. The peak knee external adduction moment and speed of movement in the anterior-posterior direction increased after training on the sand surface during both 45- and 90-degree cuts. Based on the results, training on the sand surface improved performance through increasing the speed of movement, and on the other hand, increased the load on the knee joint, indicating the need to provide solutions such as technique improvement training along with this protocol.

کلیدواژه‌ها [English]

  • futsal
  • Sand surface training
  • Knee Flexion angle
  • Knee abduction angle
  • Knee External Adductor Moment
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