مقایسه تأثیر شش هفته تمرین اختصاصی والیبال روی سطوح نرم و سخت بر سطوح استراحتی و پاسخ لاکتات، کراتین کیناز و لاکتات دهیدروزناز به فعالیت حاد

نوع مقاله: مقاله پژوهشی

نویسندگان

1 کارشناس‌ارشد، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه شهید بهشتی، تهران، ایران

2 استادیار، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه شهید بهشتی، تهران، ایران

3 دانشیار، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه شهید بهشتی، تهران،ایران

4 استاد، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه شهید بهشتی، تهران، ایران

چکیده

هدف از این تحقیق مقایسۀ تأثیر شش هفته تمرینات اختصاصی والیبال روی سطح ماسه و سالن بر سطوح استراحتی و پاسخ لاکتات، کراتین‌کیناز (CK) و لاکتات دهیدروژناز (LDH) به فعالیت حاد در بازیکنان والیبال بود. به این منظور هجده والیبالیست مرد (میانگین±انحراف معیار، سن3/7±7/23 سال و وزن 7/1±3/75 کیلوگرم) در دو گروه یک پروتکل شش هفته­ای تمرین را روی دو سطح ماسه و سالن، به‌صورت تمرینات اختصاصی والیبال با شدت بیشینه انجام دادند. در مرحلۀ پیش­آزمون و پس­آزمون، آزمودنی­های دو گروه یک جلسه فعالیت حاد را اجرا کردند. دو نمونۀ خونی قبل و بلافاصله پس از فعالیت حاد گرفته ­شد. نتایج نشان داد که تمرین روی ماسه در مقایسه با سالن بر تجمع لاکتات پس از فعالیت تأثیر معناداری داشت و موجب کاهش آن شد (05/0P<)؛ اما سازگاری تمرین در سطح ماسه تغییر معناداری در سطوح استراحتی و پاسخ به فعالیت میزان CK و LDH ایجاد نکرد (05/0<P). به‌طور کلی با توجه به تأثیر بهتر تمرین در سطح ماسه بر غلظت لاکتات در پاسخ به فعالیت حاد و با توجه به آسیب‌های اسکلتی- عضلانی کمتر سطح ماسه، می‌توان نتیجه­ گرفت که این نوع تمرین کارایی بیشتری در عملکرد ورزشی والیبالیست­ها دارد.

کلیدواژه‌ها


عنوان مقاله [English]

The effects of six weeks of volleyball specific training on hard and soft surfaces on resting levels and responses of lactate, creatine kinase and lactate dehydrogenase to acute exercise

نویسندگان [English]

  • Sina Rokhsati 1
  • Alireza Salimi-Avansar 2
  • Sajad Ahmadizad 3
  • Khosrow Ebrahim 4
1 MSc, Faculty of Physical Education and Sport Sciences, Shahid Beheshti University, Tehran, Iran
2 Assistant Professor, Faculty of Physical Education and Sport Sciences, Shahid Beheshti University, Tehran, Iran
3 Associate Professor, Faculty of Physical Education and Sport Sciences, Shahid Beheshti University, Tehran, Iran
4 Professor, Faculty of Physical Education and Sport Sciences, Shahid Beheshti University, Tehran, Iran
چکیده [English]

The aim of this study was to compare the effect of six weeks of volleyball specific training on the sand and hard surface (sport hall) on the resting levels and responses of lactate, creatine kinase (CK) and lactate dehydrogenase (LDH) to acute exercise in volleyball players. For this purpose, 18 male volleyball players (Mean±SD; age, 23.7±3.7; weight, 75.3± 1.7) were randomly assigned to two groups of sand and sport hall. Both group performed a six-week volleyball specific training with maximum intensity. Before and after the training period all subjects in both groups performed an acute exercise session. Two Blood samples were taken before and immediately after the acute exercise and were analyzed for measuring lactate, creatine kinase (CK) and lactate dehydrogenase (LDH). To compare the effects of training on responses of biochemical parameters to acute exercise data were analyzed by using two-way ANOVA and the resting blood parameters were analyzed using independent t-test. The results showed that, the training on the sand reduces responses of lactate accumulation during acute exercise significantly (P<0/05). However, the training on the sand neither changed the resting levels of all parameters nor the responses of creatine kinase (CK) and lactate dehydrogenase (LDH) to acute exercise. Generally, based on the better effects of sand volleyball training on the lactate responses to acute exercise and that injuries on the sand are less than hard surfaces, it could be concluded that this training modality would results in better performance in volleyball players.

کلیدواژه‌ها [English]

  • creatine kinase (CK)
  • lactate
  • lactate dehydrogenase (LDH)
  • Volleyball
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