تأثیر تحریک الکتریکی فراجمجمه‏ای مغز با استفاده از جریان الکتریکی مستقیم بر تمرکز و رکورد تیراندازان تپانچه

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشیار گروه تربیت بدنی دانشگاه پیام نور تهران ایران

2 کارشناس ارشد رشد حرکتی دانشگاه پیام نور تهران ایران

چکیده

تمرکز، در تیراندازی نقش مهمی ‌دارد. برخی توانایی تمرکز را از استعدادهای طبیعی و ذاتی ورزشکاران دانسته‌اند، حال آنکه این توانایی‌ها ذاتی نیست و مهارت‌هایی است که ورزشکاران می‌توانند از طریق تمرین و آموختن به‌دست آورند. یکی از راه‏های افزایش تمرکز، استفاده از تحریک الکتریکی فراجمجمه‏ای مغز با استفاده از جریان الکتریکی مستقیم (tDCS) است. بدین‌منظور به بررسی تأثیر تحریک الکتریکی فراجمجمه‏ای مغز با استفاده از جریان الکتریکی مستقیم بر تمرکز و رکورد تیراندازان تپانچه 16-26 سالۀ شهر اصفهان پرداخته شد. در پژوهش 30 آزمودنی (خانم و آقا) حضور داشتند که 15 نفر آنها در گروه تجربی و 15 نفر برای گروه کنترل انتخاب شدند. پیش از شروع کار از آزمودنی‏های هر دو گروه پیش‏آزمون شامل تست استروپ و فرم کامل تیراندازی شامل 60 تیر با دستگاه اسکت گرفته شد و پس از آن افراد گروه تجربی تحت تأثیر تحریک الکتریکی فراجمجمه‏ای مغز با استفاده از جریان الکتریکی مستقیم از ناحیۀT3 و CZ به مدت 20 دقیقه با ولتاژ یک میلی‏آمپر در یک روز و به مدت 10 جلسه به‌صورت مداوم قرار گرفتند. پس از پایان کار و گذشت 7 روز از همۀ آزمودنی‏ها پس‏آزمون گرفته شد که همان موارد پیش‌آزمون بود. داده‏های به‌دست‌آمده با استفاده از SPSS و سپس تحلیل کوواریانس بررسی شد. در این تحقیق، سطح معناداری برای آمار بخش تمرکز 005/0 و برای آمار بخش رکورد 0001/0 به‌دست آمد. نتایج به‌دست‌آمده هم در آمار توصیفی و هم در آمار استنباطی با 05/0 >P نشان‌دهندۀ این بود که تحریک الکتریکی فراجمجمه‏ای مغز بر تمرکز و رکورد تیراندازان تپانچه تأثیر معنا‌داری داشته و بهبود یافته است.

کلیدواژه‌ها


عنوان مقاله [English]

The effect of direct brain electrical stimulation on concentration and the record of pistol shooter

نویسندگان [English]

  • Farnaz Torabi 1
  • Zahra Mortazaeedarsara 2
1 Associate Professor,Department of Sport Sciences, Payame Noor University,Tehran,Iran
2 MS of Motor Development,Payame Noor University,Tehran,Iran
چکیده [English]

Abstract

Concentration is an important rool in shooting, Some consider the ability to concentrate to be a natural and inherent talent of athletes, while these abilities are not innate and are skills that athletes can acquire through practice and learning.The use of direct brain electrical stimulation is one of the ways to increase the concentration. This study focused on effect of Transcranial direct current stimulation (tDCS) on the concentration and record of 16 to 26 year old pistol shooters in Isfahan was investigated, 30 subjects (consisted of women and gentlemen were present. 15 of them were in experimental group and 15 subjects were selected for control group. Before the beginning of the study, subjects of both groups were subjected to a pretest including a stroop test and a complete shot form 60 arrows with a scatt machine. Then the experimental group went under the influence of tDCS from the T3 and CZ regions for 20 minutes with voltage of 1 mA per day and it continued for 10 sessions. All subjects were subjected to post-test, which was the same as the pre-test after the end of work and 7 days later. Data were analyzed by SPSS . The results showed that Transcranial direct current stimulation had a significant effect on the concentration and the record of the pistol shooters. The results of both descriptive statistics and inferential statistics (P <0.05) indicated that tDCS had a significant effect on concentration and record of pistol shooters and it improved by using tDCS.

کلیدواژه‌ها [English]

  • concentration
  • Record
  • Shooting
  • transcranial direct current stimulation (tDCS)
  • pistol
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