نوع مقاله : مقاله پژوهشی
نویسندگان
1 کارشناس ارشد بیومکانیک ورزشی، دانشگاه اصفهان
2 استادیار آسیب شناسی ورزشی، دانشگاه اصفهان
3 استاد رفتار حرکتی، دانشگاه اصفهان
چکیده
مرحلۀ تیک‌آف، مهم‌ترین بخش در اجرای پرش سه‌گام است. هدف از انجام این پژوهش، مقایسۀ پارامترهای سینماتیکی منتخب سه‌فاز تیک‌آف در ورزشکاران نخبۀ ایران و جهان می‌باشد. شرکت‌کنندگان در این پژوهش، پنج ورزشکار مرد نخبۀ کشوری با میانگین رکورد 8/0±4/15 متر بودند که در فینال مسابقات دو و میدانی آغاز فصل بزرگ‌سالان قهرمانی کشور در تهران شرکت داشتند. اجرای ورزشکاران با استفاده از سه دوربین فیلم‌برداری ضبط شد و برای هر ورزشکار سه مورد از بهترین اجراها مورد‌تحلیل قرار گرفت. نتایج به‌دست‌آمده حاکی از وجود تفاوت در سرعت افقی مرحلة لی و پرش و نیز زمان حمایت در مرحلة قدم می‌باشد؛ تمامی این مقادیر کم‌تر از مقادیر مرجع هستند. براساس یافته‌ها به مربیان توصیه می‌شود که طراحی تمریناتی در راستای افزایش توانایی‌ها و هماهنگی عصبی عضلانی ورزشکاران را مورد‌توجه قرار دهند.
کلیدواژه‌ها
عنوان مقاله [English]
Comparing the Kinematic Parameters of Triple Jump Take Off Phases between Iranian and International Elite Athletes
نویسندگان [English]
- Abbas Chitsazzadeh 1
- Shahram Lenjannejadian 2
- Ahmadreza Movahedi 3
1 M.Sc in Sport Biomechanics, University of Isfahan
2 Assistant Professor of Sport Injuries, University of Isfahan
3 Professor of Motor Behavior, University of Isfahan
چکیده [English]
Take off is considered as a most important phase in Triple jump. The aim of this research was to compare the selected kinematic parameters of three take off phases of triple jump performed by elite Iranian and World-class athletes. The participants were five elite Iranian triple jumpers (mean record: 15.4±0.8 m) who had participated in the final stage of track and field competition held in Tehran. Performances of these athletes were recorded using three cameras and three best performances of each jumpers were analyzed. Results show the significant differences in horizontal velocity of Hop and Jump take off phases and also a significant difference in support time of Step take off phase. All these parameters are lower from International values. Therefore, attention to design the exercises for increasing the muscular strength and neuromuscular coordination is recommended to coaches.
کلیدواژه‌ها [English]
- Sport Biomechanics
- Kinematics
- Triple Jump
- Take off
- Carr G. Fundamental of track and field. Dadashi S, Motamedi P, Goodarzi A. Tehran: Printing and Publication Organization of Iranian Ministry of Culture and Islamic Guidance. 1st Print: 1381. (In Persian).
- Shaadmehr B, Rajabi H, Khajavi N. Track and field (Vol. 2): Jumping and Throwing Events. Tehran: SAMT Publication. 9th Print: 1393. (In Persian).
- Eissa a. Biomechanical evaluation of the phases of the triple jump take-off in a top female athlete. Journal of Human Kinetics. 2014; 40(1): 29-35.
- Yu B. Horizontal-to-vertical velocity conversion in the triple jump. J Sport Sci. 1999; 17(3): 221-9.
- Bridgett L A, Linthorne N P. Changes in long jump take-off technique with increasing run-up speed. J Sport Sci. 2006; 24(8): 889-97.
- Coh M, Kugovnik O. Variability of biomechanical parameters in the triple jump technique. Sport Logia. 2011; 7(2): 113-21.
- Allen S, King M, Yeadon M. Is a single or double arm technique more advantageous in triple jumping? J Biomech. 2010; 43(16): 3156-61.
- Linthorne N P, Guzman M S, Bridgett L A. Optimum take-off angle in the long jump. J Sport Sci. 2005; 23(7): 703-12.
- Perttunen J, Kyrolainen H, Komi P V, Heinonen A. Biomechanical loading in the triple jump. J Sport Sci. 2000; 18(5): 363-70.
- Graham-Smith P, Lees A. A three-dimensional kinematic analysis of the long jump take-off. J Sport Sci. 2005; 23(9): 891-903.
- Hay J G. Changes in muscle-tendon length during the take-off of a running long jump. J Sport Sci. 1999; 17(2): 72-159.
- Seyfarth A, Blickhan R, Van Leeuwen J L. Optimum take-off techniques and muscle design for long jump. J Exp Biol. 2000; 203(4): 741-50.
- Alexander R M. Optimum take-off techniques for high and long jumps. Philos Trans R Soc Lond B Biol Sci.. 1990; 329(1252): 3–10.
- Hommel H. Biomechanical analyses of selected events at the 12th IAAF World Championships in Athletics. Berlin: German Athletics Federation. 2009; 1-17.
- Bae Y S. Biomechanics research project in the IAAF World Championships. Scientific research project by Korean society of sport biomechanics. Daegu: Korean Society of Sport Biomechanic. 2011; 81-90.
- Müller H, Hommel H. Biomechanical research project at the VIth world championships in athletics: Preliminary report. New Studies in Athletic. 1997; 12(2-3): 43-73.
- Koyama H, Ae M, Muraki Y. Biomechanical analysis of the men's and women's triple jump at the 11th IAAF World Championships in Athletics: A brief report. Osaka 2007. Bulletin of studies in athletics of JAAF. 2009; 5: 107-18.
- Fukashiro S, Imoto Y, Koboyashi H, Miyashita M. A biomechanical study of the triple jump. Med Sci Sport Exer. 1981; 13: 233-7.
- Susanka P, Jurdik M, Koukal J, Kratky P M, Velebil V. Biomechanical analysis of the triple jump. In G. P. Bruggemann & P. Susanka (Eds.), International Athletic Foundation Scientific Report on the 2nd World Championships in Athletics. IAAF, Rome. 1987.
- Matveyev A E. Analysis of the push-off technique of the running triple jump. Theory and Practice and Physical Education. 1985; 12: 5-6.
- Verhoshanski Y. Triple jump with approach. Moscow: Physical Culture and Sport; 1961.
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