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ELİT HALTERCİLERDE KOPARMA TEKNİĞİNİN KARŞILAŞTIRMALI BİYOMEKANİK ANALİZİ

BIOMECHANICAL ANALYSIS OF THE SNATCH TECHNIQUE IN ELITE WEIGHTLIFTERS

Journal Name:

  • Hacettepe Üniversitesi Spor Bilimleri Dergisi

Publication Year:

  • 2005

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
The purpose of this study is to show the kinetic differences between elite weightlifters, by calculating the force applied to the bar, work done on the bar and power output by weightlifters during a snatch technique. Three elite weightlifters who were the medal winners in the 56 kg category during the 71st men's world weightlifting championships, participated in this study. Two cameras operating at 25 frames per second (50 field/per second) were used to record the attempts of the weightlifters. Selected 18 anthropometric points on the weightlifters' body and 2 points on the bar were digitized. The force applied to the bar, work done and power output were calculated using an inverse dynamic analysis that combined the displacement of the midpoint of the bar. In conclusion, it has been shown that the kine¬matic and kinetic factors, such as work, power, the force applied, the maximal height of the bar and the position of the body, were characteristics of technical difference between weightlifters in snatch lifts.
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Abstract (Original Language): 
Bu çalışmanın amacı, koparma kaldırışı sırasında bara uygulanan kuvveti, yapılan işi ve güç değerlerini hesaplayarak elit halterciler arasındaki kinetik farklılıkları göstermektir. Bu çalışmaya 71. Dünya halter şampiyonasında 56 kg'da dereceye giren üç elit erkek halterci denek olarak alındı. Koparma kaldırışlarının görüntü kayıtları saniyede 25 kare (50 alan/s) kayıt yapabilen iki adet S-VHS (Panasonic NV-MS2b) marka kamera ile yapılmıştır. Görüntüler APAS (Ariel Performans Analiz Sistemi, Ariel Dynamics, San Diego, CA) hareket analizi yazılım programında halterci üzerinde 18 antropometrik nokta ve bar üzerinde 2 nokta işaretlenerek sayısallaştırılmıştır. Barın sayısallaştırılan her iki ucuna ait yerdeğiştirme veri¬lerinden barın orta noktasının yerdeğiştirme verisi hesaplanmıştır. Ters dinamik (inverse dynamics) yöntemi ile bara uygulanan kuvvet ve bu kuvvetin yaptığı iş ve güç değerleri hesa¬planmıştır. Sonuçta, koparma tekniğinde vücut pozisyonu, barın maksimal yüksekliği, uygu¬lanan kuvvet, yapılan iş ve güç gibi kinematik ve kinetik faktörlerin halterciler arasındaki teknik farklılığın belirleyicisi olduğu görülmüştür.
FULL TEXT (PDF): 
PDF icon arastrmx_152775_16_pp_124-134.pdf
  • 3
124-134
  • Turkish

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