اثر یک دوره تمرین هوازی بر سطوح آنزیم‌های شاخص آسیب عضلانی (کراتین کیناز، لاکتات دهیدروژناز) در زنان میان‌سال

نویسندگان

1 دانشیار گروه فیزیولوژی ورزشی، دانشکدۀ تربیت‌بدنی، دانشگاه تربیت‌دبیر شهید رجایی، تهران، ایران

2 دانشجوی دکتری فیزیولوژی ورزشی عصبی‌عضلانی، دانشکدۀ تربیت‌بدنی، دانشگاه تربیت‌دبیر شهید رجایی، تهران، ایران

چکیده

مقدمه و هدف: یکی از دغدغه‌های افراد میان‌سال برای شروع ورزش و زندگی پرتحرک و سالم این است که چه برنامۀ تمرینی برای آن‌ها مناسب‌تر است. در این میان، تمرینات هوازی به‌عنوان اولین و بهترین گزینۀ شروع ورزش برای افراد معرفی می‌شود که می‌تواند باعث برخی اختلالات سلولی، بالاخص سلول عضلانی شود. هدف از این مطالعه، بررسی اثر یک دوره تمرین هوازی بر سطوح آنزیم‌های شاخص آسیب سلولی در زنان میان‌سال می‌باشد.


مواد و روش‌ها: در مطالعۀ حاضر که به روش نیمه‌تجربی انجام شد، 12 زن میان‌سال غیرفعال به‌طور داوطلبانه شرکت کردند. پروتکل تمرینی شامل 8 هفته، هر هفته 3 جلسۀ 60دقیقه‌ای با شدت50تا70درصد ضربان قلب بود. متغیر وابسته شامل کراتین کیناز (CK) و لاکتات دهیدروژناز (LDH) به‌عنوان شاخص‌هایی از آسیب سلولی بود که در طی سه مرحله تمرین مورد بررسی قرار گرفت (پیش از تمرین، جلسۀ اول و بعد از جلسۀ 24). یافته‌های پژوهش با استفاده از آزمون تحلیل واریانس و آزمون تعقیبی بنفرونی مورد تجزیه و تحلیل قرار گرفت.


نتایج: نتایج تحقیق حاضر نشان داد که میزان CK و LDH پس از جلسۀ اول تمرین نسبت‌به پیش از تمرین افزایش معنی‌داری داشته است. بااین‌حال نتایج نشان داد که میزان CK و LDH پس از جلسۀ 24 نسبت‌به جلسۀ اول کاهش معنی‌داری داشته است. همچنین بین مرحلۀ پیش از تمرین و بعد از جلسۀ 24 تفاوت معنی‌داری یافت نشد.


نتیجه‌گیری‌: با توجه به نتایج به نظر می‌رسد یک دوره تمرین هوازی می‌تواند میزان CK و LDH را به‌عنوان شاخص‌هایی از آسیب سلولی را در زنان میان‌سال کاهش دهد.

کلیدواژه‌ها


عنوان مقاله [English]

The effect of a prolonged period of aerobic training on the muscle damage indices (creatine kinase and lactate dehydrogenase) in middel-aged womens

چکیده [English]

Background and Objective: The proportional practice protocol is an important issue for middle-aged women to start a health and energetic life style. Aerobic training is proposed as the first and best method of practice for all individuals. However, this protocol is not without damage, because this method like other methods can lead to some cellular disorders, especially muscle cell disorder. The purpose of this study was the effect of a period of aerobic training on the level of enzymes of cellular index damage in the middle-aged women.


Materials and Methods: The method of this study was semi-experimental. 12 middle-aged women participated as volunteers in this study. The protocol of training consisted of 8 weeks and 3 sessions per week. Each session included 60 minutes of training with 50-70 percent of heart rate intensity. The dependent variables were creatine kinase and lactate dehydrogenase as muscle cell damage indices that were measured in 3 periods of training (before training, the first session and after the last session). The data was analyzed by ANOVA and Bonferoni post hoc tests.


Results: The results showed that the amount of creatine kinase and lactate dehydrogenase significantly increased after a practice session. In addition, amount of creatine kinase and lactate dehydrogenase significantly decreased after 24 sessions than the first session. Also, there was no significant difference between before practice session and after session 24.


Conclusion: According to these results, it is proposed that a period of aerobic training can decrease cellular damage indices in middle-aged women.

کلیدواژه‌ها [English]

  • Creatine kinase
  • Lactate dehydrogenase
  • Aerobic training
  • Middle-aged women
  • Muscle damage
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