نوع مقاله : مقاله پژوهشی Released under CC BY-NC 4.0 license I Open Access I

نویسندگان

1 گروه فیزیولوژی ورزشی، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه تهران، تهران، ایران.

2 نویسندۀ مسئول، گروه فیزیولوژی ورزشی، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه تهران، تهران، ایران

چکیده

مقدمه: تحقیق حاضر با هدف سنجش تأثیرات مصرف یک‌ماهة مکمل امگا3، بر مهم‌ترین علائم DOMS در مردان سالم غیرفعال بررسی شد.
روش پژوهش: پژوهش حاضر از نوع نیمه‌تجربی و به لحاظ هدف کاربردی بود. جامعة آماری شامل مردان سالم غیرفعال شهر بوکان بود که از بین آنها 22 نفر به‌عنوان نمونة آماری انتخاب و به‌طور تصادفی به دو گروه مساوی تقسیم شدند. آزمودنی‌ها، روزانه یک کپسول امگا- 3، 1000 میلی‌گرمی و دارونمای دکستروز 2 درصد به مدت یک ماه دریافت کردند. پس از تعیین (1RM)، آزمودنی‌ها با استفاده از دستگاه پرس پا با وزنه‌ای به میزان 80 درصد یک تکرار بیشینه، حرکت را در چهار نوبت و هر نوبت 20 تکرار اجرا کردند. هر انقباض 4 ثانیه طول کشید، میزان 2 سی‌سی خون سیاهرگی، پیش از شروع تحقیق 24، 48 و 72 ساعت پس از کوفتگی عضلانی توسط متخصص گرفته شد و اندازه‌گیری‌ها انجام گرفت. برای تحلیل آماری از آزمون‌های آماری تی مستقل و تحلیل واریانس با اندازه‌گیری‌های مکرر و آزمون تعقیبی بنفرونی استفاده شد. سطح معنا‌داری برابر 05/0 در نظر گرفته شد.
یافته‌ها: مقایسۀ بین‌گروهی PGE2، کورتیزول، احساس درک درد و دامنۀ حرکتی زانو در تمام مراحل پژوهش در هر دو گروه کنترل و مکمل تفاوت معنا‌داری داشت (P<0.001)؛ نتایج آزمون درون‌گروهی نشان داد میانگین PGE2، کورتیزول و احساس درک درد، در گروه مکمل به‌ترتیب در تمامی مراحل بعد مداخله کاهش معنا‌داری داشت، درحالی‌که در گروه کنترل در تمامی مراحل افزایش بیشتر و معنا‌داری بود (P<0.05).
نتیجه‌گیری: مصرف مکمل امگا3 می‌تواند سبب کاهش علائم ظاهری عملکردی و بیوشیمیایی کوفتگی عضلانی تأخیری در دورة پس از اتمام تمرینات برون‌گرا و درون‌گرا شود که می‌تواند به‌دلیل خواص ضدالتهابی قوی امگا3 و پاسخگویی بهتر آزمودنی‌های تحقیق حاضر به مصرف امگا3 و جذب گوارشی بهتر این مکمل باشد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Understanding the Effects of Omega-3 Supplementation on the Appearance, Functional, and Biochemical Symptoms of Delayed Onset Muscle Soreness Following Eccentric and Concentric Activity in Inactive Healthy Men

نویسندگان [English]

  • Mostafa Kabiri zadeh 1
  • Ali Akbarnejad 2
  • Ali Rajabi 1

1 Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran.

2 Corresponding Author, Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran

چکیده [English]

Introduction: The current research aimed to measure the effects of one-month omega-3 supplement consumption on the most important symptoms of Delayed Onset Muscle Soreness (DOMS) in inactive healthy men.
Methods: The current research was a quasi-experimental and applied one in terms of purpose. The statistical population included inactive healthy men from Bukan City. Among them, 22 people were selected as a statistical sample and they were randomly assigned into two equal groups. Participants received a daily dose of 1000 mg omega-3 capsule or a 2% dextrose placebo for one month. After determining 1RM, participants performed the leg press in four sets of 20 repetitions using a leg press machine with a weight of 80% of 1RM. Each contraction lasted 4 seconds. Two ccs of venous blood were drawn by a specialist before the start of the study, 24, 48, and 72 hours after DOMS and measurements were made. For statistical analysis, independent t, repeated measures ANOVA, and Bonferroni's post hoc tests were used. A significance level of 0.05 was considered.
Results: Between-group comparison of PGE2, cortisol, pain perception and knee range of motion in all stages of the study in both control and supplement groups had significant differences (P<0.001). The results of the within-group test showed that the average PGE2, cortisol, and pain perception in the supplement group had a significant decrease in all post-intervention stages, while in the control group, there was a significant increase in all stages (P<0.05).
Conclusion: Taking omega-3 supplements can reduce the appearance, functional and biochemical symptoms of DOMS in the period after the completion of eccentric and concentric exercises; which can be due to the strong anti-inflammatory properties of omega-3 and the better response of the research participants to omega-3 consumption and better digestive absorption of this supplement.

کلیدواژه‌ها [English]

  • Cortisol
  • Delayed Onset Muscle. Soreness
  • Omega-3
  • PGE2

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