پژوهش در طب ورزشی و فناوری

اثر شناوری در آب سرد و تحریک الکتریکی (TDCS) در دوره ریکاوری بر تغییرات لاکتات خون و عملکرد بعدی شناگران

نویسندگان

علی ملایی 1
صدیقه حسین پور دلاور 1
مهران قهرمانی 2
رضا جباری 3
محمد جلیلوند 1

1 دانشگاه آزاد اسلامی واحد کرمانشاه

2 دانشگاه آزاد اسلامی واحد گیلان غرب

3 دانشگاه شهید بهشتی

https://doi.org/10.29252/jsmt.18.20.49
چکیده
هدف از پژوهش حاضر تعیین اثر شناوری در آب سرد و تحریک جریان مستقیم جمجمه‌­ای TDCS در دوره ریکاوری بر تغییرات لاکتات خون و عملکردی بعدی شناگران حرفه‌ای مرد بود. بدین منظور 20 شناگر مرد در دو روز با فاصله ۴۸ ساعت در محل آزمون حضور یافتند. هر روز شنای ۲۰۰ متر کرال سینه اجرا و پس‌ازآن آزمودنی‌­ها در یکی از پروتکل‌های، روز اول تحریک آندی (با شدت 2 میلی‌­آمپر) و گروه ساختگی، روز دوم شناوری در آب سرد (با درجه ) و بازیافت در خشکی قرار گرفتند. لاکتات خون قبل از اجرای آزمون (۲۰۰ متر شنا کرال) بلافاصله بعد از اجرای آزمون در طول پروتکل هر سه دقیقه تا انتهای زمان ۱۵ دقیقه اندازه­‌گیری شد. در پایان برای سنجش تأثیر روش­های تحت بررسی روی عملکرد، اجرای شنای دویست متر تکرار گردید. برای تجزیه‌وتحلیل داده­ها، از آزمون‌ها، تی ­وابسته، تحلیل کواریانس، تعقیبی LSD و تحلیل واریانس با اندازه­گیری­‌های مکرر استفاده شد. نتیجه این پژوهش نشان داد عملکرد شنا فقط در گروه TDCS بهبود معنا­­داری داشت، کاهش زمان رکورد (0/001=p). لاکتات خون در گروه شناوری در آب سرد کاهش بیشتری (0/001=p) نسبت به سایر گروه‌ها داشت.

کلیدواژه‌ها

تحریک الکتریکی
شناوری در آب سرد
لاکتات. عملکرد شنا

عنوان مقاله English

The Effect of Water Immersion and Transcranial Direct Current Stimulation (TDCS) during Recovery Period on Changes in Blood Lactate and Subsequent Performance of Swimmers

نویسندگان English

Ali Molaei 1
Sedigheh Hosseinpour Delavar 1
Ghahramani Mehran 2
Reza Jabbari 3
Mohammad Jalilvand 1
1 Islamic Azad University Kermanshah Branch
2 Islamic Azad University Gilan -E-Gharb Branch
3 Shahid Beheshti University
چکیده English

The present study was aimed to determine the effect of cold-water immersion and (TDCS) during the recovery period on blood lactate changes in and subsequent performance of professional male swimmers. For this purpose, 20 male participated in this study in two days with an interval of 48 hours. The two-hundred meter breaststroke was performed every day and then the subjects participated in one of the protocols, an anodic stimulation (with intensity of 2 mA)or the artificially exposed to anodic stimulation on the first day, and on the second day they were experienced the cold water immersion (12° C).The subjects' blood lactate was measured. Finally, in order to measure the effect of the investigated methods on their performance, the 200-meter swim was repeated. To analyze the data dependent t-test and analysis of covariance, LSD follow-up, analysis of variance with repeated measures, were used. The results of this study indicated that swimming performance significantly improved only in the TDCS group, with a reduction in the record time (P = 0.001). Blood lactate showed a greater decrease in the cold water immersion group (P = 0.001)

کلیدواژه‌ها English

Transcranial Direct Current Stimulation
cold water immersion
Lactate
Swimming Performance
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