تاثیر توزیع تمرین ودشواری تکلیف شناختی بر تحکیم تکلیف کنترل قامت

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه رفتارحرکتی، دانشکده علوم ورزشی، دانشگاه الزهرا،تهران

2 استادیار گروه رفتار حرکتی، دانشکده علوم ورزشی، دانشگاه الزهرا (س)، تهران، ایران.

3 استادیار، دکتری تخصصی بیومکانیک ورزشی، گروه فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه الزهرا (س)، تهران، ایران.

چکیده

مطالعه حاضر با هدف بررسی تاثیر دشواری تکلیف شناختی و توزیع تمرین بر تحکیم تکلیف کنترل قامتی انجام‌ شد. 28 کارمند از دانشگاه الزهرا تهران بر اساس معیارهای ورود به مطالعه انتخاب و در سه گروه با توزیع تمرینی متفاوت 2 دقیقه، 15دقیقه و 24 ساعت با سه سطح دشواری (آسان، متوسط، دشوار) به طور تصادفی گمارده شدند. هر گروه 3 بلوک 6 کوششی از تکلیف شناختی شمارش معکوس که زمان هر کوشش 35 ثانیه، فاصله میان کوشش ها 20 ثانیه و فاصله زمانی میان بلوک ها بسته به تقسیم بندی گروه 2 دقیقه، 15 دقیقه و 24 ساعت بود را اجرا کردند. برای ارزیابی موقعیت لحظه ای مرکز فشار پا (COP) از فورس پلیت مدل کیستلر استفاده شد. پردازش داده های COP و محاسبه متغیرهای آن با استفاده از نرم افزار متلب انجام شد. از پرسشنامه فعالیت بدنی (IPAQ) نیز برای بررسی میزان فعالیت بدنی استفاده شد. نتایج تحلیل واریانس مرکب با اندازه‌های تکراری نشان داد اثر اصلی سطح دشواری تکلیف و توزیع تمرین معنادار بود (05/0p <). اثر تعاملی سطح دشواری تکلیف و توزیع تمرین معنادار بود (05/0p <). نتایج آماری نشان داد گروه توزیع تمرین فاصله دار 15 دقیقه و 24 ساعت با سطح دشواری آسان در مولفه های COP بهترین عملکرد و گروه توزیع تمرین با فاصله 2 دقیقه ای با سطح دشواری بالا ضعیف ترین عملکرد را داشتند. با توجه به یافته-های پژوهش حاضر، به مربیان و آموزش دهندگان توصیه می شود اجرای تکالیف حرکتی را با فواصل تمرین آسایی در جهت ارتقاء یادگیری، همراه سازند.

کلیدواژه‌ها


عنوان مقاله [English]

The effect of practice distribution and cognitive task difficulty on postural task consolidation

نویسندگان [English]

  • raziyeh sajedi 1
  • parvaneh shamsipour dehkordi 2
  • leila ghazaleh 3
1 Department of Motor Behavior, Faculty of Sports Sciences, AlZahra University, Tehran
2 Assistant Professor, Department of Motor Behavior, Faculty of Sports Sciences, AlZahra University, Tehran, Iran.
3 Assistant Professor, PhD in Sports Biomechanics, Department of Sports Physiology, Faculty of Sports Sciences, AlZahra University, Tehran, Iran
چکیده [English]

The aim of this study was to investigate the effect of cognitive difficulty and practice distribution on postural control task consolidation. 28 employees from AlZahra University of Tehran were selected based on the inclusion criteria and were randomly assigned to three groups with different training distributions of 2 minutes, 15 minutes and 24 hours with three levels of difficulty (easy, medium, difficult). Each group of 3 blocks performed 6 attempts of the cognitive countdown task, in which the time of each attempt was 35 seconds, the interval between attempts was 20 seconds and the time interval between blocks was 2 minutes, 15 minutes and 24 hours depending on the division of the group. COP data processing and calculation of its COP parameters were performed using MATLAB software. The Physical Activity Questionnaire (IPAQ) was also used to assess the level of physical activity. The results of combined analysis of variance with repeated measures showed that the main effect of task difficulty level and exercise distribution was significant (p <0.05). The main effect of the training distribution is significant (p <0.05). Statistical results showed that the 15-minute, 24-hour interval training distribution group with the best difficulty level had the best performance in the COP parameters and the 2-minute interval training distribution group with the highest difficulty level had the weakest performance. According to the findings of the present study, educators and trainers are recommended to combine the performance of motor homework with intervals of comfort training to promote learning.

کلیدواژه‌ها [English]

  • Off line learning
  • Motor Memory
  • Countdown task
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