نوع مقاله : مقاله پژوهشی Released under (CC BY-NC) license I Open Access I
نویسندگان
1 دانشیار فیزیولوژی ورزشی، گروه فیزیولوژی ورزشی، دانشگاه کردستان، سنندج، ایران،
2 گروه تربیت بدنی و علوم ورزشی، واحد مریوان، دانشگاه آزاد اسلامی، مریوان، ایران
3 ، دانشگاه کردستان، سنندج، ایران
چکیده
زمینه و هدف: هدف پژوهش حاضر بررسی تاثیر پلی‌مورفیسم MCT1 A1470T (rs 1049434) بر یک تکرار بیشینه قدرت عضلانی در ورزشکاران جوان گروه قدرتی سرعتی و استقامتی در دو آزمون پرس‌سینه و اسکات‌اسمیت بود.
روش کار: 49 ورزشکار جوان تمرین کرده مرد با میانگین سنی (54/5±22/24سال)، قد (91/8±57/178سانتی-متر)، وزن (31/13±32/75کیلوگرم) و شاخص توده بدن (26/3±54/23کیلوگرم برمترمربع) با ملاک های ورودی به این پژوهش راه یافتند. قدرت عضلانی طی یک جلسه با استفاده از آزمون یک تکرار بیشینه در دو قسمت بالاتنه (آزمون پرس سینه) و پایین تنه (اسکات سمیت) برای هر آزمودنی محاسبه شد. از روش ARMS-PCR برای تعیین ژنوتیپ نمونه ها استفاده شد.
یافته ها: نتایج نشان داد که تفاوت معنی داری بین ژنوتیپ‌های پلی‌مورفیسم MCT1 در یک تکرار بیشینه قدرت عضلانی آزمون اسکات‌اسمیت در ورزشکاران وجود دارد (3/51 F=، 038/0=p ) که ژنوتیپ TTبا بیشترین قدرت در آزمون اسکات‌اسمیت همراه بود. آزمون تعقیبی LSD نشان داد که آزمودنی های دارای ژنوتیپ (TT+AT) قدرت بیشتری در مقایسه با آزمودنی های دارای ژنوتیپ (AA+(AT دارند. در گروه قدرتی بین ژنوتیپ (AA و TT) در یک تکرار بیشینه قدرت عضلانی اسکات‌اسمیت تفاوت معنی‌داری دیده شد (0/047=p ، 54/3F= ) و افراد دارای ژنوتیپ TT بیشترین قدرت را در آزمون اسکات‌اسمیت داشتند.
نتیجه‌گیری: ژنوتیپ TT پلی‌مورفیسم MCT1 با قدرت عضلانی پایین‌تنه ورزشکاران همراه بوده است و اثر این ژنوتیپ در ورزشکاران گروه قدرتی بارز بود.
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
The effect of MCT1 polymorphism on muscle strength in male endurance, speed and strength athletes
نویسندگان [English]
- Mohammad Rahman Rahimi 1
- Hassan Faraji 2
- sahar shamlooee 3
1 Associated prof. Exercise Physiology, Department of Exercise Physiology, University of Kurdistan, Sanandaj, Iran.
3 University of Kurdistan, Sanandaj, Iran.
چکیده [English]
Introduction: The aim of the present study was to investigate the effect of MCT1 A1470T polymorphism (rs 1049434) on one repetition maximum muscle strength in young athletes of the speed and endurance strength group in the chest press and squat-smith tests.
Methodology: 49 young trained male athletes with average age (24.22±5.54 years), height (178.57±8.91 cm), and weight (75.32±13.31 kg) were included in this research with the entry criteria. Muscle strength was calculated during one session using a maximum repetition test in two parts of the upper body (chest press test) and lower body (squats) for each subject. ARMS-PCR method was used to determine the genotype of the samples.
Results: The results showed that there is a significant difference between the genotypes of the MCT1 polymorphism in one repetition of the maximum muscle strength of the Scott-Smith test in athletes (F=51.3, p=0.038) that the TT genotype with the highest strength in the test Scott Smith was with him. LSD post hoc test showed that subjects with genotype (TT+AT) have more strength compared to subjects with genotype (AA+AT). In the strength group between genotypes (AA and TT) in one repetition of maximum Scott-Smith muscle strength, the difference It was significant (p=0.047, F=3.54) and people with TT genotype had the highest strength in the Scott-Smith test.
Conclusion: The TT genotype of the MCT1 polymorphism has been associated with the lower body muscle strength of athletes and the effect of this genotype was evident in the athletes of the strength group.
کلیدواژه‌ها [English]
- Polymorphism
- Genotype
- MCT1
- 1RM
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