نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری رفتار حرکتی، دانشگاه ارومیه

2 دانشیار رفتار حرکتی، دانشگاه ارومیه

3 استادیار رفتارحرکتی، دانشگاه آزاد اسلامی ارومیه

چکیده

سالمندی با تخریب بینایی، افت در پوسچر، کاهش قدرت عضلانی، تعادل و فعالیت شناختی همراه است و به کاهش فعالیت بدنی منجر می‌شود. هدف از انجام پژوهش حاضر، اثر دو نوع تمرین دوگانة حرکتی-حرکتی و حرکتی-شناختی بر تعادل و حافظة کاری زنان سالمند شهر تهران بود. آزمودنی‌های پژوهش 45 زن سالمند (میانگین سنی: 71/67 و انحراف معیار: 49/5 سال) بودند که به‌صورت تصادفی به سه گروه حرکتی-شناختی، حرکتی-حرکتی و کنترل تقسیم شدند. این پژوهش شامل سه مرحلة پیش‌آزمون، تمرین‌ها به دو شیوۀ دوگانة حرکتی-حرکتی و حرکتی-شناختی و پس‌آزمون بود. تمرین‌های دوگانة حرکتی-حرکتی شامل تمرین مقاومتی به‌علاوة تمرین حرکتی هم‌زمان مانند حرکت توپ به بالا و پایین، پرتاب کیسه و نگه‌داشتن کیف بود. تمرین دوگانة حرکتی-شناختی نیز شامل تمرین مقاومتی به‌علاوة تمرین شناختی هم‌زمان مانند شمارش معکوس عدد، انجام محاسبات ریاضی و اسپل معکوس اسامی خاص بود. برای تحلیل داده‌ها از آمار توصیفی، روش‌های آماری آزمون تحلیل واریانس مرکب 3 * 2 و آزمون تعقیبی بونفرونی استفاده شد. نتایج نشان داد که مقادیر حافظة کاری برای گروه تمرین حرکتی-شناختی نسبت به گـروه حرکتی-حـرکتی (P = 0.005) و گـروه کنترل (P = 0.002) بیشتر است. علاوه‌براین، نمره‌های مقیاس تعادل برگ برای گروه حرکتی-شناختی و حرکتی-حرکتی در مرحلة پس‌آزمون نسبت به پیش‌آزمون افزایش داشت (P = 0.01)، اما این افزایش در گروه حرکتی-شناختی بیشتر بود. به‌طورکلی، براساس نتایج پژوهش، تمرین دوگانة حرکتی-شناختی به‌دلیل ارتقای کارکردهای عصبی به‌عنوان مدلی بهتر در مقایسه با تمرین حرکتی-حرکتی و حرکتی محض برای ارتقای تعادل و بهبود حافظة کاری پیشنهاد می‌شود.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The Effects of Motor-Motor and Motor- Cognitive Dual Task Training on Balance and Working Memory Among Older Women

نویسندگان [English]

  • Nahideh Parvin 1
  • Fatemeh Sadat Hosseini 2
  • Malek Ahmadi 3

1 Ph.D. Candidate in Motor Behavior and Sport Management, Urmia University

2 Associate Professor of Motor Behavior and Sport Management, Urmia University

3 Assistant Professor of Motor Behavior, Islamic Azad University of Urmia

چکیده [English]

Aging is associated with the visual degeneration, loss of posture, that leads to the decreased muscle strength, balance, and cognitive activity, therefore, resulted in decreased physical activity. The purpose of the present study was to compare the impact of two types of motor-motor and motor-cognitive dual task training on balance and working memory among elderly women in Tehran. The participants were 45 elderly women (mean age 67.71 years; SD: 5.49) that were randomly assigned as the motor-cognitive, motor-motor and control groups. This study including of three stages of pre-test, training in two dual task ways motor-motor and motor-cognitive and post-test. Motor-motor dual-task training includes resistance training along with a motor training simultaneously, such as moving the ball up and down, throwing the bag, holding the bag. Motor-Cognitive dual-task training also includes resistance training along with a cognitive training simultaneously, such as revers the number counting, performing mathematical calculations, the reversing the spelling of particular names. To analyze the data, descriptive statistics, statistical methods of mixed analysis of variance (ANOVA) 2 × 3 and Bonferroni post hoc test were used. The results showed that the working memory score for the motor-cognitive training group is higher than the motor-motor (P= 0.005) and control (P = 0.002) groups. In addition, results showed a higher score of Berg scales of balance for motor-cognitive and motor-motor groups in the post-test compared to pre-test (P = 0.01). However, this increase is the highest in the motor-cognitive group. In general, the results of the research suggest that motor-cognitive dual task training promote balance and improve working memory as a result of enhancing neural functions that outperforms motor-motor or pure motor training model in function.

کلیدواژه‌ها [English]

  • Elderly Women
  • Dual Task Training
  • Resistance Training
  • Cognitive Training
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