Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine ( 2014 ) 13 , 417 - 422

Research article
Comparative Kinematic Analysis of the Snatch Lifts in Elite Male Adolescent Weightlifters
Erbil Harbili1, , Ahmet Alptekin2
Author Information
1 Selcuk University, School of Physical Education and Sports, Alaeddin Keykubat Campus, Konya, Turkey
2 Pamukkale University, School of Sport Sciences and Technology, Kinikli Campus, Denizli, Turkey

Erbil Harbili
‚úČ School of Physical Education and Sports, University of Selcuk, Alaeddin Keykubat Campus, 42003, Konya, Turkey
Email: eharbili@selcuk.edu.tr
Publish Date
Received: 09-01-2014
Accepted: 05-02-2014
Published (online): 01-05-2014
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ABSTRACT

The purpose of the study was to compare the linear kinematics of the barbell and the angular kinematics of the lower limb during the snatch lifts of two different barbell weights in elite male adolescent weightlifters. In the national team level, nine elite male adolescent weightlifters participated in the study. The snatch lifts were recorded by two video cameras under competitive conditions in preparation period before the European Junior Championship (Sony MiniDv PAL- 50 field/s) and the two heaviest successful lifts were selected for kinematic analysis. The little toe, ankle, knee, hip, and shoulder on the body and one point on the barbell were digitized using Ariel Performance Analysis System (APAS, San Diego, CA, USA). Significant decreases were found in the maximum barbell height, the relative power output during the second pull, and the maximum vertical velocity of the barbell during the second pull of the heaviest lift (p < 0.05). Maximum extension velocity of the hip joint significantly increased during the first pull of the heaviest lift (p < 0.05). As the mass of the barbell increased, the maximum vertical velocity and the maximum height of the barbell and relative power output during the second pull decreased in the heaviest lift performed by adolescent weightlifters. Coaches should pay attention to assistant exercises to increase explosive strength during the second pull with maximum strength in male adolescent weightlifters.

Key words: Load of barbell, junior weightlifters, angular kinematic


           Key Points
  • The results demonstrate that the maximum strength of the extensor muscles of the hip during the first pull and their explosive strength during the second pull must be improved.
  • Coaches should pay attention to assistant exercises to increase explosive strength during the second pull with maximum strength in male adolescent weightlifters.
 
 
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