مقایسه هشت هفته تمرینات ثبات مرکزی با پلایومتریک بر دامنه حرکتی و توان ورزشکاران دارای بی ثباتی مزمن مچ پا
محورهای موضوعی : فیزیولوژی تمرین و آسیب های ورزشی
سجاد حمزه عبدالله البوجاسم
1
(کارشناس ارشد آسیب شناسی ورزشی و حرکات اصلاحی، دبیر تربیت بدنی، وزارت آموزش و پرورش، عراق، بابل.)
حمید طباطبائی
2
(استادیار گروه آسیب شناسی ورزشی و حرکات اصلاحی، دانشکده تربیت بدنی و علوم ورزشی، واحد تهران جنوب، دانشگاه آزاد اسلامی، تهران، ایران. )
کلید واژه: بی ثباتی مزمن مچ پا, تمرینات ثبات مرکزی, تمرینات پلایومتریک, دامنه حرکتی, توان,
چکیده مقاله :
هدف از پژوهش حاضر، مقایسه تاثیر هشت هفته تمرینات ثبات مرکزی با پلایومتریک بر دامنه حرکتی و توان ورزشکاران دارای بی ثباتی مزمن مچ پا بود. جامعه آماری این پژوهش، شامل ورزشکاران جوان پسر دارای بیثباتی مزمن مچ پا بود. تعداد افراد نمونه 30 نفر (10 نفر برای هر گروه) در نظر گرفته شد، که در ابتدا به صورت هدفمند و در نهایت به صورت تصادفی ساده انتخاب شده و به صورت همتا شده، به دو گروه آزمایش (ثبات مرکزی و پلايومتريك) و یک گروه کنترل تقسیم شدند. قبل از شروع پروتکل تمرینی، توان انفجاری و دامنه حرکتی (دورسی فلکشن و پلانتار فلکشن) ارزیابی و اندازهگیری شد. گروه های تجربی تمریـنات خود را که شامل تمریـنات ثبات مرکزی و پلایومتریک بود، به مدت هشت هفته (3جلسه در هفته) انجام دادند و گروه کنترل در طول انجام پژوهش هیچ‌گونه تمرینات ورزشی خاصی را انجام ندادند. بعد از اجرای هشت هفته پروتکل تمرینی، پس آزمون جهت ارزیابی متغیرها با انداره گیری دامنه حرکتی به‌وسیله گونیامتر و آزمون سارجنت جهت اندازه گیری توان، همانند پیش آزمون انجام شد. تمرینات ثبات مرکزی بر توان تاثیر معنی داری دارد، اما در بهبود دامنه حرکتی (پلانتار فلکشن و دورسی فلکشن) تفاوت معنی دار نبود و از پیش¬آزمون تا پس¬آزمون بهبود معناداری مشاهده نشد. تمرینات پلایومتریک بر توان و دامنه حرکتی (پلانتار فلکشن و دورسی فلکشن) مچ پا تاثیر معنی داری دارد.
The purpose of this study was to compare the effects of eight weeks of core with plyometric training on rang of motion and power athletes with chronic ankle sprain. The statistical population of this study included all young boys with ankle sprain. The sample consisted of 30 subjects (10 for each group), who were initially targeted and finally randomly selected and matched to three groups of (Core stability, Plyometric) and control group were divided. The explosive power and range of motion (dorsiflexion and plantar flexion) were evaluated and measured before the start of the training protocol. The experimental group performed their exercises consisting of core stability and plyometric exercises for eight weeks (3 sessions per week) and the control group did not perform any training activity during the study. Finally, after the exercise protocol, a test was used to evaluate the variables. To determine the difference between the pre-test and post-test of each of the experimental and control groups, the dependent and independent t-test were used by SPSS software. The results showed that Core stability training had a significant effect on power, but there was no significant difference in range of motion (plantar flexion and dorsiflexion) and no significant improvement from pre-test to post-test. Plyometric exercises had significant effect on ankle strength and range of motion (plantar flexion and dorsiflexion).
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