تأثیر فواصل استراحتی بین دوره‌های فعالیت مقاومتی بر تغییرات ظرفیت آنتی‌اکسیدان پلاسمایی و شاخص آسیب سلولی

نوع مقاله: مقاله پژوهشی

نویسندگان

1 استادیار فیزیولوژی ورزشی، گروه تربیت بدنی، واحد سنندج، دانشگاه آزاد اسلامی، سنندج، ایران

2 استادیار فیزیولوژی ورزشی، گروه تربیت بدنی، واحد مهاباد، دانشگاه آزاد اسلامی، مهاباد، ایران

چکیده

هدف تحقیق حاضر بررسی تأثیر فواصل استراحتی بین دوره‌ها متعاقب دو فعالیت مقاومتی با حجم و شدت برابر بر تغییرات ظرفیت آنتی‌اکسیدانی پلاسما و آنزیم کراتین کیناز بود. به همین منظور 20 آزمودنی تمرین‌نکرده داوطلبانه در تحقیق شرکت کردند و به‌طور تصادفی در یکی از دو گروه فعالیت مقاومتی با فاصلۀ استراحتی دو دقیقه و دیگری فعالیت مقاومتی با فاصلۀ استراحتی چهار دقیقه قرار گرفتند. فعالیت مقاومتی با شدت حداکثر شش تکرار بیشینه در چهار دوره انجام گرفت. نمونه‌گیری قبل از شروع پروتکل فعالیت، بلافاصله بعد از اتمام، 6، 24 و 48 ساعت بعد از آن نیز دنبال شد. نتایج نشان داد که هر دو فعالیت مقاومتی با فواصل استراحتی متفاوت موجب تغییر سطوح ظرفیت آنتی‌اکسیدان پلاسما و تغییرات آنزیم کراتین کیناز شدند (05/0≥ P). با وجود این، بین دو گروه در هیچ‌کدام از مراحل اندازه‌گیری تفاوت معنا‌داری در CK و TAC دیده نشد (05/0< P). به‌طور کلی می‌توان گفت فاصلۀ استراحتی بین دوره‌ها در فعالیت مقاومتی نمی‌تواند متغیر تأثیرگذار مهمی بر تغییرات ردوکس و نیز آسیب سلولی باشد و آنچه اهمیت بیشتری دارد، شدت فعالیت مقاومتی است.

کلیدواژه‌ها


عنوان مقاله [English]

The Effect of Rest Intervals between Sets of Resistance Exercise on Plasma Antioxidant Capacity Changes and Cell Injury Index

نویسندگان [English]

  • Kamal Azizbeigi Boukani 1
  • Sirvan Atashak 2
1 Assistant Professor of Exercise Physiology, Department of Physical Education and Sports Sciences, Islamic Azad University, Sanandaj Branch, Sanandaj, Iran
2 Assistant Professor of Exercise Physiology, Department of Physical Education and Sports Sciences, Islamic Azad University, Mahabad Branch, Mahabad, Iran
چکیده [English]

The aim of this study was to determine the effect of rest intervals between two resistance exercise protocols (with similar volume and intensity) on plasma antioxidant capacity (TAC) and creatine kinase (CK). For this purpose, 20 untrained subjects voluntarily participated in the research and randomly assigned to one of the two resistance exercise groups with 2-minute rest interval and 4-minute rest interval. Resistance exercise was performed in four sets of six repetitions maximum (6RM). Blood samples were collected before the exercise, immediately after the exercise, 6, 24 and 48 hours after the exercise. The results indicated that both resistance exercises with different rest intervals significantly changed plasma antioxidant capacity and creatine kinase (P≤0.05). However, there was no significant difference in the TAC and CK between the groups during the study (P>0.05). Generally, it can be said that rest intervals between resistance exercises cannot have an effect on redox changes and cellular damage, but the intensity of exercise was more important.

کلیدواژه‌ها [English]

  • antioxidant capacity
  • cell injury index
  • Resistance exercise

 

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