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لیست داوران سال 1401

لیست داوران سال 1400

آثار حاد فعالیت مقاومتی با محدودیت جریان خون و تنفس بر غلظت لاکتات خون و هورمون رشد در کشتی‌گیران دانشگاهی

نوع مقاله : مقاله پژوهشی Released under (CC BY-NC) license I Open Access I

نویسندگان

1 دانشجوی کارشناسی ارشد فیزیولوژی ورزشی

2 استاد دانشگاه گیلان

چکیده

هدف: فعالیت مقاومتی با شیوه‌های نوین تمرینی همچون محدودیت جریان خون و تنفس که بیشتر با شدت پایین انجام می‌شود پاسخ‌ها و تأثیرات فیزیولوژیکی مختلفی را به‌دنبال دارد. از این رو، هدف اصلی این پژوهش مطالعه تأثیر محدودیت جریان خون و تنفس بر غلظت لاکتات خون و هورمون رشد در پاسخ حاد فعالیت ورزشی مقاومتی در کشتی‌گیران دانشگاهی بود.
روش‌شناسی: در این مطالعه از روش متقاطع استفاده شد. 8 کشتی‌گیر دانشگاهی با سابقه تمرینی بیش از دو سال (با میانگین سنی 7/4±87/26 سال و شاخص توده بدنی 49/2±26/25 کیلوگرم بر مترمربع) به صورت تصادفی و در سه شرایط کنترل (1RM80%)، فعالیت مقاومتی به همراه محدودیت جریان خون و تنفس 1RM) 30%) قرار گرفتند. فعالیت مقاومتی شامل اجرای 4 نوبت 15 تکراری از حرکت اسکوات بود. نمونه‌های خونی قبل و بلافاصله بعد از فعالیت جمع­آوری شد.
یافته‌ها: هر سه نوع تمرین موجب افزایش معنی‌دار لاکتات و هورمون رشد بلافاصله پس از فعالیت شد (05/0p <) اما تفاوت معنی‌داری بین شرایط مشاهده نشد.
نتیجه‌گیری: یک جلسه تمرین مقاومتی همراه با محدودیت جریان خون و تنفس مانند تمرین مقاومتی روتین می‌تواند باعث افزایش پاسخ‌های متابولیتی و هورمونی شود. این تحقیق تا حدودی اثربخشی این‌گونه از تمرینات را تأیید می‌کند و می­تواند اهدافی همچون افزایش لاکتات و هورمون رشد را که از تمرینات با شدت بالا انتظار می رود، برآورده ‌کند.
 

کلیدواژه‌ها

عنوان مقاله [English]

The acute effects of resistance exercise with blood flow and respiratory restriction on blood lactate and growth hormone in collegiate wrestlers

نویسندگان [English]

  • A Rahmani 1
  • B Mirzaei 2

1 MSc student in exercise physiology

2 Professor, University of Guilan

چکیده [English]

Aim: Resistance training with new methods of exercise such as blood flow and respiration restriction that is more performed at a lower intensity is pursued various physiological responses. Therefore, the main purpose of this study was to determine the effect of blood flow and respiratory restriction on blood lactate concentration and growth hormone in the acute response to resistance exercise in collegiate wrestlers.
Method: In this study, a cross-sectional was used in which 8 collegiate wrestlers with more than two years' experience (mean age 26.87±4.7 years and body mass index 25.26±2.49 kg/m2) were randomy assigned in three conditions including: control (%801RM) and resistance exercise with blood flow and respiratory restriction (%301RM). Four sets with 15 repitations squat were considered as resistance exercise. Blood samples were collected before and immediately after exercise.
Results: all three types of exercise caused a significant increase in lactate and growth hormone immediately after the exercise (p <0.05), but no significant difference was observed between the groups (p <0.05).
Conclusion: The results of this study indicate that resistance exercise with restriction of blood flow and respiration such as routine resistance training can lead to increased metabolic and hormonal responses. This research also rather confirms­ the effectiveness of this type of exercise and satisfies the goals such as increased lactate and growth hormone expected from high intensity exercises.
 

کلیدواژه‌ها [English]

  • Keywords: KAATSU
  • Blood flow restricted
  • Training Mask
  • Lactate
  • Growth hormone
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سوخت و ساز و فعالیت ورزشی
دوره 8، شماره 2
آذر 1397
صفحه 137-150
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  • تاریخ دریافت: 25 مرداد 1397
  • تاریخ بازنگری: 18 آبان 1397
  • تاریخ پذیرش: 14 بهمن 1397
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