نوع مقاله : مقاله پژوهشی Released under (CC BY-NC) license I Open Access I
نویسندگان
1 گروه تربیت بدنی، واحد مرودشت، دانشگاه آزاد اسلامی، مرودشت، ایران
2 دانشگاه آزاد اسلامی واحد شیراز
چکیده
در مطالعه حاضر، به بررسی اثر یک دوره فعالیت های مقاومتی منظم بر تغییرات گالکتین-3 نسبت به یک جلسه تمرین مقاومتی شدید پرداخته شد.
در این مطالعه نیمه تجربی، تعداد 11 مرد جوان با میانگین سنی 5/1 ± 6/62 سال در این مطالعه شرکت کردند. پس از اندازه گیری حداکثر قدرت، آزمودنی ها به اجرای یک وهله تمرین مقاومتی شدید در هشت ایستگاه در قالب 3 ست، با 8 تکرار و 80 درصد حداکثر قدرت پرداختند. سپس آزمودنی‌ها 3 روز در هفته و به مدت 8 هفته همان تمرینات مقاومتی را در قالب 3 ست با 6-21 تکرار و با 56 تا 08 درصد حداکثر قدرت اجرا کردند. 84 ساعت پس از اتمام دوره تمرینی، مجدد تمرین شدید مقاومتی اجرا شد. نمونه های خونی قبل از شروع تمرینات، بلافاصله پس از اتمام تمرین شدید مرحله اول، 84 ساعت پس از اتمام 8 هفته تمرین منظم و بلافاصله پس از اتمام تمرین شدید مرحله دوم گرفته شد.
نتایج نشان داد پس از اعمال اولین جلسه شدید تمرینی، سطح گالکتین-3 افزایش معنی داری پیدا کرد (3/11 درصد و 01/0=P) اما پس از اتمام 8 هفته تمرین منظم، سطح گالکتین-3 کاهش یافت به طوری که با سطح اولیه تفاوت معنی‌داری نداشت (1/0=P) و سطح گالکتین-3 پس از دومین تمرین شدید مقاومتی نیز همچنان پایین باقی ماند.
به طور کلی می توان نتیجه گرفت فعالیت ورزشی منظم مقاومتی می تواند در تعدیل تغییرات سطح گالکتین-3 ناشی از یک جلسه تمرین شدید مقاومتی در مردان جوان مؤثر باشد.
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
Effect of regular resistance exercise on galectin-3 responses to a bout of heavy resistance training
نویسنده [English]
- Hamidreza Nayeri khoob 1
1 Department of exercise physiology, Marvdasht branch, Islamic Azad University, Marvdasht, Iran
چکیده [English]
Galectin-3 is a member of the galectin family and galectin-3 used as a diagnostic or prognostic biomarker for certain types of heart disease, kidney disease and cancer. Intensive exercise increases the levels of this protein, but the effect of regular exercise to ameliorate galectin-3 responses to high-intensity exercise is not well known. The present study was done to examine the effect of regular resistance training on galectin-3 responses to a bout of heavy resistance training.
Eleven young men (age: 26.6±1.5 years old) volunteered to participate in this quasi study. One reparation maximum (1-RM) was measured and the subjects performed a heavy resistance exercise trial consisted of eight exercises (chest press, triceps extension, latissimus pull down, shoulder press, arm curls, leg extension, leg curls, and squat) of 8 repetitions with 3 sets at 80% of 1RM. Thereafter, all the subjects performed 3 sets of the same resistance training with 65-80% 1RM, 3 days a week for 8 weeks. 48h after the last session of training, a bout of heavy resistance exercise was done again. Blood samples were taken at baseline and immediately after the heavy resistance exercise trials.
The results demonstrated that galectin-3 increases after the first bout of heavy resistance exercise (P<0.05), while galectin-3 concentration reduce after the 8 weeks of regular resistance training and it remain low after the second bout of heavy resistance exercise.
Generally, we can conclude that regular resistance exercise is effective to ameliorate galectin-3 responses to a bout of heavy resistance training in young men.
کلیدواژه‌ها [English]
- Resistance training
- Galectin-3
- Intensive exercise
- Cardiovascular diseases
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