بررسی اثر آنی سرمادرمانی بر فاکتورهای کینتیکی مرتبط با آسیب حین برش جانبی در مردان ورزشکار سالم: مطالعه آزمایشی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه بیومکانیک و اسیب شناسی ورزشی، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه خوارزمی، تهران، ایران.

2 استادیار گروه تربیت بدنی و علوم ورزشی، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه خوارزمی، تهران، ایران

3 استادیار، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه خوارزمی، تهران، ایران

چکیده

مقدمه و اهداف
سرمادرمانی یکی از تکنیک‌های رایج در درمان آسیب‌های حاد و مزمن ورزشکاران است. هدف از پژوهش حاضر بررسی اثر آنی سرمادرمانی بر فاکتورهای کینتیکی مرتبط با آسیب حین برش جانبی در مردان ورزشکار سالم بود.
مواد و روش­ ها
14 ورزشکار مرد حرفه‌ای سالم با میانگین سن 5/3±3/24 سال و وزن 2/19+±1/74 کیلوگرم در مطالعه حاضر شرکت کردند. متغیرهای کینتیکی شامل نیروی عکس‌العمل زمین، میزان نرخ بارگذاری نیروها، جابه­جایی مرکز فشار نسبت به مرکز جرم و اوج گشتاور آزاد توسط صفحه نیروسنج حین مانور برش جانبی اندازه‌گیری شد. مچ پای آزمودنی‌ها از دو جانب داخلی و خارجی و با فاصله 30 سانتی‌متری نسبت به قوزک­ ها به مدت 5 ثانیه تحت اعمال سرما با استفاده از اسپری سردکننده قرار گرفت و آزمون سه بار تکرار شد. از آزمون t زوجی برای بررسی تغییرات آماری در سطح معنا‌داری 0/05 استفاده شد.
یافته ­ها
نتایج آزمون t زوجی نشان داد که اوج نیروی عکس‌العمل در راستای داخلی-خارجی (0/042=P) و نرخ بارگذاری آن (0/046=P) پس از اعمال پروتکل سرما نسبت به پیش­ آزمون (قبل از مداخله) افزایش معناداری پیدا کرد. متغیر جابه­ جایی مرکز جرم نسبت به مرکز فشار در هر دو راستای داخلی-خارجی و قدامی-خلفی نیز (به ­ترتیب 0/01=P و 0/004=P) افزایش معناداری در مقایسه با پیش ­آزمون نشان دادند.
نتیجه ­گیری
با توجه به نتایج پژوهش حاضر به نظر می‌رسد که سرما موجب افزایش ریسک خطر آسیب‌های ناشی از افزایش میزان نیرو و نرخ بارگذاری و کاهش میزان کنترل ثبات دینامیکی ورزشکاران حین حرکت برش جانبی شده و فرد را در معرض خطر آسیب‌های بالقوه‌ای قرار می­ دهد. توصیه می­شود که با انجام تحقیقات با حجم نمونه بیشتر در این زمینه، محققان اطلاعات مفید و جامع ­تری در مورد استفاده از اسپری ­های سردکننده حین مداوای آسیب ­های مچ پا در فعالیت ­های برشی ارائه دهند.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Immediate Effect of Cryotherapy on the Kinetic Factors Associated with Injury during the Side-Cutting Maneuver in Healthy Male Athletes: Pilot Study

نویسندگان [English]

  • Hamidreza Naserpour 1
  • Mehdi Khaleghi Tazji 2
  • Amir Letafatkar 3
1 Department of Biomechanics and Sport Injury, Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran.
2 PhD. Assistant Professor of Faculty of Physical Education and Sport Sciences, Kharazmi University, Teheran, Iran
3 PhD. Assistant Professor, Department of Biomechanic and Sport Injury, School of Physical Education and Sport Sciences, Kharazmi University, Tehran, Iran
چکیده [English]

Background and Aim: Cryotherapy is commonly used in the treatment of acute and chronic athletic injuries. The present study aimed to investigate the immediate effect of cryotherapy on the kinetic factors associated with injury during the side-cutting maneuver in healthy male athletes.
Materials and Methods: A total of 14 professional athletes (age: 24.3±3.5 years and weight: 74.1±19.2 kg) took part in the study. The kinetic factors, including ground reaction force, and their rate of loading, the center of mass to center of pressure changes, and free momentum, were assessed by force plate during the side-cutting maneuver. Simultaneously, using spray cooling, cold was applied to participants' inside and outside parts of the ankle with a distance of 30 cm from lateral and medial malleolus for 5 seconds; the test was repeated three times. Paired t-tests were used for statistical analysis, with a significance level of P≤0.05.
Results: The results of the Paired t-test showed that both peak ground reaction force (P = 0.042) and the rate of loading in the Medio-lateral direction significantly increased (P = 0.046) after applying the cold protocol compared to the pre-test (before intervention). The center of mass to center of pressure displacement in both Medio-Lateral and Anterior-Posterior directions also showed a significant increase (P = 0.01 and P = 0.004), respectively.
Conclusion: According to the results of the current study, it seems that cold enhances the risk of injuries due to increased force and its rate of loading and reduces the dynamic stability of athletes during the side-cutting maneuver and can put the athletes at risk of potential injuries. It is recommended that further studies be conducted using larger sample size to investigate the use of cooling sprays during the treatment of ankle injuries in shear activities.

کلیدواژه‌ها [English]

  • Cryotherapy
  • Kinetic
  • Side-cutting
  • Ankle
  • Ground Reaction Force

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دوماهنامه علمی - پژوهشی طب توانبخشی
دوره 9، شماره 2
تیر 1399
صفحه 1-8

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سابقه مقاله

  • تاریخ دریافت: 17 خرداد 1399
  • تاریخ بازنگری: 22 خرداد 1399
  • تاریخ پذیرش: 26 خرداد 1399
  • تاریخ اولین انتشار: 01 تیر 1399

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