دوره 17، شماره 17 - ( 2-1398 )
جلد 17 شماره 17 صفحات 22-11 |
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Soltani Ichi M, Motamedi P, Rajabi H. Acute effects of plyometric training with changing of height landing on the electromyographic activity during preparatory phase land-jump. RSMT 2019; 17 (17) :11-22
URL: http://jsmt.khu.ac.ir/article-1-361-fa.html
URL: http://jsmt.khu.ac.ir/article-1-361-fa.html
سلطانی ایچی مهدی، معتمدی پژمان، رجبی حمید. تاثیر حاد تمرین پلایومتریک به همراه تغییر ارتفاع فرود بر فعالیت الکترومایوگرافی مرحله پیشآمادهسازی حرکت فرود-پرش. پژوهش در طب ورزشی و فناوری. 1398; 17 (17) :11-22
، mehdi.soltani2011@gmail.com
چکیده: (6655 مشاهده)
هدف مطالعه حاضر تعیین تاثیر حاد تمرین پلایومتریک به همراه تغییر ارتفاع فرود برفعالیت الکترومایوگرافی مرحله پیشآمادهسازی درحرکت فرود-پرش بود. 10 دانشجوی تربیت‌بدنی و علوم ورزشی (سن1/286±21/10سال ، قد6/467±173سانتی‌متر، وزن 7/42±68/2کیلوگرم) در این تحقیق شرکت کردند. آزمودنی‌ها در چهار روز متفاوت یکی از پروتکل‌های تمرین پلایومتریک و حرکت فرود-پرش از ارتفاع 40 و 60 سانتی‌متر را تک‌پا انجام دادند. فعالیت الکترومایوگرافی مرحله پیشآمادهسازی گروه عضلانی چهارسر و همسترینگ 150 میلی ثانیه پیش از تماس پا با زمین ثبت شد. از روش آماری تحلیل واریانس با اندازه‌گیری تکراری و آزمون تعقیبی بونفرونی استفاده شد. نتایج نشان داد فعالیت عضلات راست رانی، پهن خارجی و دو سر رانی در مرحله پیشآمادهسازی پس از تغییر ارتفاع فرود افزایش معنی‌داری به ترتیب ( 0/002=p=0/001 ،p=0/001،p ) داشته است. فعالیت عضلات (راست رانی، پهن خارجی، دو سر رانی) پس از اجرای پلایومتریک و تغییر ارتفاع فرود در مرحله پیشآمادهسازی افزایش معنی‌داری به ترتیب (0/039=p، 0/001=p) (0/006=p، 0/000=p) (0/001=p، 0/014=p) داشته است. نتایج این مطالعه نشان داد اجرای تمرین پلایومتریک به شکل حاد با تغییر در ارتفاع فرود موجب افزایش در فعالیت الکتریکی عضلات در فاز پیشآمادهسازی و در نهایت افزایش در میزان ارتفاع پرش می‌شود.
نوع مطالعه: پژوهشي |
دریافت: 1398/7/29 | پذیرش: 1398/7/29 | انتشار: 1398/7/29
دریافت: 1398/7/29 | پذیرش: 1398/7/29 | انتشار: 1398/7/29
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