نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه بیومکانیک و آسیب شناسی ورزشی، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه خوارزمی، تهران، ایران

2 دانشیار بیومکانیک ورزشی، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه مازندران، مازندران

3 استادیار بیومکانیک ورزشی، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه خوارزمی، تهران

4 استادیار بیومکانیک ورزشی، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه مازندران، مازندران

چکیده

هدف مطالعة حاضر، مقایسة هماهنگی و تغییرپذیری مفاصل اندام فوقانی در پاروکشی کایاک مردان جوان نیمه‌حرفه‌ای و نخبه بود. تعداد هشت مرد جوان کایاک­ران در دو گروه نخبه و نیمه‌حرفه‌ای قرار گرفتند. با تقسیم چرخة پاروکشی به چهار مرحلة اصلی، میانگین و تغییرپذیری فاز نسبی پیوسته برای هر مرحله محاسبه شد. نتایج آزمون تی مستقل برای هماهنگی مفاصل بین دو گروه، تفاوت بیشتر در خم‌کردن شانه و آرنج سمت چپ مرحلة چهارم و خم‌کردن آرنج و دورکردن شانة سمت چپ مرحلة اول را نشان داد. با توجه به نتایج، در تمام مراحل سمت راست، گروه نخبه تغییرپذیری بیشتری نسبت به سمت چپ داشتند؛ درحالی‌که در گروه نیمه‌حرفه‌ای تغییرپذیری الگوی نامنظمی داشت. به‌طورکلی، در مقایسة پاروکشی کایاک بین دو گروه نخبه و نیمه‌حرفه‌ای، تفاوت معناداری در فاز نسبی پیوسته و تغییرپذیری آن مشاهده نشد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Comparison of Upper Extremity Joints Coordination and its Variability in Kayak Paddling Technique of Elite and Intermediate Young Males

نویسندگان [English]

  • Mahdi Baghaeian 1
  • mansour eslami 2
  • Ali Abbasi 3
  • Mehdi Khaleghi Tazji 3
  • Seyed Esmaeil Hosseini Nejad 4

1 Sport Biomechanics Department, Faculty of Physical Education & Sport Sciences, Kharazmi University, Tehran, Iran

2 Associate Professor in Sports Biomechanics, Faculty of Physical Education and Sports Sciences, Mazandaran University, Mazandaran

3 Assistant Professor in Sports Biomechanics, Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran

4 Assistant Professor in Sports Biomechanics, Faculty of Physical Education and Sports Sciences, Mazandaran University, Mazandaran

چکیده [English]

The aim of this study was to compare the coordination and variability of upper limb joints in elite and intermediate young men during Kayak paddling technique. Eight young Kayak paddlers were classified into two elite and intermediate groups. After dividing the stroke cycle into four phases, the mean and variability of continuous relative phase were calculated for each phase. The results of the independent t-test for coordination of joints between the two groups showed significant differences in the shoulder and elbow flexion on the left side in fourth phase and elbow flexion and shoulder abduction at left side in first phase. According to the results, in the all phase, the elite group variability was more in right side than the left, while the intermediate group variability has Irregular patterns. Generally, comparison Continuous Relative Phase and its Variability between elite and intermediate Kayak paddler showed no significant differences.

کلیدواژه‌ها [English]

  • Kayak
  • Paddling
  • Continuous Relative Phase
  • Variability
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