تاثیر شش هفته تمرینات هاپینگ بر تعادل پویای بازیکنان والیبال مبتلا به ناپایداری عملکردی مچ پا با تاکید بر زمان رسیدن به پایداری

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکترای آسیب شناسی و حرکات اصلاحی، پردیس البرز، دانشگاه تهران، تهران، ایران

2 استادیار، گروه بهداشت و طب ورزش، دانشکده تربیت بدنی دانشکده تربیت بدنی و علوم ورزشی، دانشگاه تهران، تهران، ایران

3 استاد، گروه بهداشت و طب ورزش، دانشکده تربیت بدنی دانشکده تربیت بدنی و علوم ورزشی، دانشگاه تهران، تهران، ایران

چکیده

مقدمه و اهداف
هدف از پژوهش حاضر، بررسی تاثیر شش هفته تمرینات هاپینگ بر تعادل پویای بازیکنان والیبال مبتلا به ناپایداری عملکردی مچ پا بود.
مواد و روش­ ها
بدین منظور 30 نفر از بازیکنان والیبال مبتلا به ناپایداری عملکردی مچ پا به صورت هدفمند و با استفاده از پرسش­نامه ارزیابی ناپایداری عملکردی مچ پای کامبرلند انتخاب و به دو گروه تجربی و کنترل تقسیم شدند. با استفاده از آزمون افت­فرود روی دستگاه صفحه­نیرو پیش­آزمون گرفته شد و پس از شش هفته تمرین بر روی گروه تجربی، آزمون مجدد (پس­آزمون) به عمل آمد.ثبات پویای شرکت­کنندگان با استفاده از شاخص زمان رسیدن به پایداری ارزیابی شد. زمان رسیدن به پایداری شرکت­کنندگان در سه راستای عمودی، داخلی-خارجی و قدامی-خلفی محاسبه شد. برای تجزیه و تحلیل داده­ها از روش آماری تحلیل کوواریانس در سطح معناداری 05/0›α استفاده شد.
یافته­ ها
نتایج تحقیق حاضر نشان داد که شش هفته تمرین هاپینگ در هیچ یک از سه راستای عمودی ، داخلی-خارجی ، قدامی-خلفی تفاوت معناداری در میانگین زمان رسیدن به پایداری بین گروه تجربی و گروه کنترل ایجاد نکرد.
نتیجه­ گیری
این امکان وجود دارد که غیر­همسو بودن نتایج تحقیق حاضر با پژوهش­های پیشین به دلیل محدودیت­های آزمون­ها و روش­های قبلی باشد. همچنین با توجه به اینکه شرکت­کنندگان پژوهش حاضر از بازیکنان ماهر والیبال بوده­اند ممکن است با ایجاد تغییرات جبرانی در مفاصل اندام تحتانی نسبت به یکدیگر، تعادل خود را در محدوده مشخصی حفظ نموده باشند؛ لذا پیشنهاد می­شود که پژوهش­های بعدی با در نظر گرفتن اثر تمرین بر مفاصل و عضلات هم به صورت جداگانه و هم در ارتباط با یکدیگر انجام شوند تا ضمن اینکه امکان مشاهده تغییرات هر مفصل به طور مجزا فراهم شود، بررسی تغییرات جبرانی حرکات مفاصل درگیر در حرکت نیز میسر گردد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Effect of Six Weeks of Hopping Training on Dynamic Stability of Volleyball Players with Functional Ankle Instability with Emphasis on the Time to Stabilization

نویسندگان [English]

  • Ali Mirabedi 1
  • Elham Shirzad Araghi 2
  • Mohammad Hosein Alizadeh 3
1 PhD student of Sport Injury and Corrective Movements, Alborz Campus, University of Tehran, Tehran, Iran
2 Assistant Professor, Department of Corrective Exercises and Sport Injury, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
3 Professor, Department of Corrective Exercises and Sport Injury, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
چکیده [English]

Background and Aims: The aim of the current study was to investigate the effect of six weeks of hopping training on the dynamic balance of volleyball players with Functional Ankle Instability(FAI).
Materials and Methods: To do so, 30 volleyball players with FAI were selected using Cumberland ankle instability tool (CAIT) questionnaire and then divided into experimental and control groups. Pre-test was performed using drop-landing test on force plate and after six weeks of training on experimental group, the post-test was given.Participants' dynamic stability was evaluated using Time to Stabilization (TTS) index during drop-landing task, as one of the deleterious athletic movements. The participants' TTS were calculated in three directions (Vertical, Medio-lateral, and Antero-posterior) and ANCOVA was used to analyze data (α ‹ 0.05).
Results: The results showed that six weeks of hopping training had no significant effects on time to stabilization mean in the vertical (P = 0.513), the medio-lateral (P = 0.369), and the antero-posterior directions (P = 0.999) in both experiment and control groups.
Conclusion: The results of the present study may not be compatible with those of the previous studies because of the limitations of the previous tests and methods. Also, given that the participants in our study were elite volleyball players, they may have been kept within a certain range by making compensatory changes in their joints. Therefore, it is suggested that further researches, with regard to the effect of exercises on the joints and muscles, be conducted separately and also in conjunction with each other until the possibility of observing changes in each joint separately is provided and also consideration of compensatory changes in the movements of joints involved in motion is possible

کلیدواژه‌ها [English]

  • Dynamic stability
  • Hopping training
  • Functional ankle instability
  • Volleyball players
  • Time to stabilization

مراجع

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دوماهنامه علمی - پژوهشی طب توانبخشی
دوره 8، شماره 2
تیر 1398
صفحه 210-220

فایل ها

سابقه مقاله

  • تاریخ دریافت: 13 مرداد 1397
  • تاریخ بازنگری: 31 شهریور 1397
  • تاریخ پذیرش: 14 آبان 1397
  • تاریخ اولین انتشار: 01 تیر 1398

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