تأثیر خستگی عضلات کمربند شانه‌ای بر حرکات ظریف و درشت دستی والیبالیست ها

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد رفتار حرکتی، گروه تربیت‌بدنی و علوم ورزشی، دانشکده علوم انسانی، دانشگاه آزاد اسلامی واحد همدان، همدان، ایران.

2 گروه تربیت بدنی و علوم ورزشی، دانشکده علوم انسانی، دانشگاه آزاد اسلامی واحد همدان، همدان، ایران.

چکیده

مقدمه و اهداف
در ارتباط با خستگی عضلانی و تأثیر آن بر حرکات درشت، تحقیقات زیادی صورت گرفته است، اما اطلاعات محدودی درباره تأثیر خستگی بر مهارت‌های ظریف وجود دارد؛ بنابراین هدف مطالعه حاضر بررسی تأثیر خستگی عضلات کمربند شانه­ای بر حرکات ظریف (رسم یک شکل با مداد) و درشت دستی (پاس پنجه) والیبالیست­های حرفه­ای بود.
مواد و روش­ ها
در مطالعه حاضر 31 والیبالیست ماهر (16 دختر و 15 پسر) با روش نمونه­گیری در دسترس انتخاب شدند. متغیرهای تحقیق قبل و پس از خستگی مورد ارزیابی قرار گرفت. برای تجزیه‌وتحلیل داده­ها از آزمون تی تست مستقل و وابسته در نرم‌افزار SPSS با سطح معناداری 05/0>p استفاده شد.
یافته ­ها
نتایج تحقیق حاضر نشان داد خستگی منجر به کاهش سرعت و فشار دست در دختران (05/0>p) و افزایش سرعت حرکت دست پسران در حرکت ظریف رسم کردن شده است. تغییرپذیری در حرکت دست در هر دو گروه بعد از خستگی تغییر معناداری نشان نداد (05/0<p). همچنین عملکرد ورزشکاران در سرعت و دقت پاس پنجه قبل و بعد از خستگی مشابه بود.
نتیجه­ گیری                                           
می­توان نتیجه گرفت که خستگی عضلات کمربند شانه­ای موجب کاهش عملکرد در مهارت­های ظریف انگشتان در دختران گردیده است، اما در مهارت­های درشت دستی هم در دختران و هم در پسران تأثیری نداشته است.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effects of Shoulder Complex Muscles Fatigue in Hand’s Fine and Gross Skills in Volleyball Players

نویسندگان [English]

  • Leyla Chaharmahali 1
  • Marziyeh Rafei 1
  • Elaheh Azadian 2
1 MSc Student of Motor Behavior. Department of Physical Education and Sport Sciences, Faculty of Humanities, Islamic Azad University, Hamedan Branch, Hamedan, Iran.
2 Department of Physical Education and Sport Sciences, Faculty of Humanities, Islamic Azad University, Hamedan Branch, Hamedan, Iran.
چکیده [English]

Background and Aims: Numerous studies have been conducted on muscular fatigue and its impact on balance movements, but limited information is available on tiredness and fine motor skills. Therefore, the current study was carried out to investigate the effect of shoulder muscle fatigue on fine (pencil drawing) and gross (paw pass) skills of professional volleyball players.
Materials and Methods: A total of 31 skilled volleyball players (16 girls and 15 boys) were selected using available sampling method. Research variables were evaluated before and after fatigue. Independent and dependent t-test were used to analyze the data in SPSS. The significance level was set at p <0.05.
Results: The results showed that speed and pressure of hand was reduced in girls after fatigue (p <0.05), while it increased the hands speed in boys. Variability of hand performance in both groups did not changed significantly after fatigue (p >0.05). The speed and precision of volleyball overhand pass was similar before and after fatigue.
Conclusion: According to the results, the fatigue of the shoulder complex muscle decreased the performance in the fine skills of the fingers of girls, but it did not affect the performance of the two groups regarding the hand gross skills.

کلیدواژه‌ها [English]

  • Shoulder complex muscles fatigue
  • Hand stability
  • Accuracy and speed
  • Fine motor skills
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