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تأثیر قیود تکلیف تو‌درتو بر سرعت جابجایی، سرعت و دقت پرتاب در هندبالیست‌های نخبه

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری کنترل حرکتی، دانشگاه تهران

2 دانشیار یادگیری و کنترل حرکتی، دانشگاه تهران

3 استادیار یادگیری و کنترل حرکتی، دانشگاه تهران

4 استادیار آسیب‌شناسی و حرکات اصلاحی، دانشگاه تهران

چکیده

مطالعات رفتاری در ورزش‌های تیمی معمولاً توسط عوامل پویا ازجمله وضعیت مدافعان برای مهارکردن مقید می‌شود. در پژوهش حاضر، داده‎های مربوط به سرعت جابه‌جایی با دوربین سرعت بالا، سرعت پرتاب با دستگاه رادارگان ورزشی و دقت پرتاب 12 هندبالیست نخبه، تحت قیود دفاعی (نبود دفاع، حضور دفاع دور، حضور دفاع نزدیک و حضور دفاع یارگیر) جمع‎آوری شدند. تحلیل واریانس با اندازه‎های تکراری و آزمون تعقیبی بونفرونی برای تحلیل تأثیر این قیود بر پارامترهای دویدن و پرتاب‌کردن استفاده شدند (P ˂ 0.05). نتایج، تفاوت آماری معناداری را در میانگین سرعت افقی کل بدن (F(1.335, 14.682) = 8.680, P = 0.007) و میانگین سرعت توپ را(F(3,33) = 12.733, P = 0.000) نشان می‌دهد؛ اما تفاوت معناداری در میانگین دقت توپ وجود ندارد (F(3,33) = 0.400, P = 0.754). هرچه مدافع به مهاجم نزدیک‌تر شد، میانگین سرعت جابه‌جایی و سرعت پرتاب، کاهش بیشتری را نشان می‌دهد. ازآنجایی‌که تنظیم بازیکنان حمله‌کننده به‌صورت مداوم و براساس ادراک رفتارهای موجود و موردنیاز بود، نتایج از جفت‌شدن ادراک عمل و مدل‎های کنترل موردانتظار حمایت می‎کند. همچنین، براساس پیشنهاد یافته‌ها، جنبه‌های تکنیکی دویدن و پرتاب‌کردن در هندبال می‌توانند تحت‌تأثیر قیود تکلیف تودرتو باشند.

کلیدواژه‌ها

عنوان مقاله [English]

Effect of Nested Task Constraints on Movement Velocity, Throwing Velocity and Accuracy in Elite Handball Players

نویسندگان [English]

  • Mohammad Ali Esmaeilzadeh 1
  • Mehdi Shahbazi 2
  • Ali Akbar Jaberi Moghadam 3
  • Shahzad Tahmasebi Boroujeni 2
  • Elham Shirzad Araqi 4

1 Ph.D. Student of Motor Control, University of Tehran

2 Associate Professor of Motor Control and Learning, University of Tehran

3 Assistant Professor of Motor Control and Learning, University of Tehran

4 Assistant Professor of Sport Medicine and Health, University of Tehran

چکیده [English]

Behavioral studies in team sports is typically constrained by dynamic factors, such as positioning of defenders for interception. In this study were captured data from the movement velocity with high speed camera, throwing velocity with sports radar gun and throwing accuracy of 12 elite handball players under defensive constraints (defender- absent, defender-far, defender-near, and defender pairing). ANOVA with repeated measures and Bonferroni post hoc test was used to analyze effects of these constraints on gait and throwing parameters (P<0.05). The results revealed significant differences in overall mean horizontal velocity (F(1.335,14.682) = 8.680, P = 0.007 ) and mean ball velocity ( F(3,33) = 12.733, P = 0.000 ) but there was no significant differences in mean ball accuracy ( F(3,33) = 0.400 , P = 0.754 ). When defender was closer to the attacker, mean movement velocity and throwing velocity was shown more decrease. Since regulation of offensive players was continuous and based on perception of current and required behaviors, results supported from perception-action coupling and prospective control models. Also, findings suggest that the technical aspects of the running and throwing in handball can affect by nested tasks constraints.

کلیدواژه‌ها [English]

  • Throwing
  • Perception-Action Coupling
  • Ecological Constraints
  • Handball
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رفتار حرکتی
دوره 10، شماره 32
تابستان 1397
مرداد 1397
صفحه 97-112
فایل ها
سابقه مقاله
  • تاریخ دریافت: 14 شهریور 1396
  • تاریخ بازنگری: 04 آذر 1396
  • تاریخ پذیرش: 25 آذر 1396
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