Comparison of the Take-off Structure for Counter Movement Jump and Somersault (A Case Study)
Journal Title: Antropomotoryka. Journal of Kinesiology and Exercise Sciences - Year 2005, Vol 15, Issue 32
Abstract
Purpose. The aim of this research was to value the effectiveness of the take-off and tracing the changes of the take-off during counter movement jump and somersault.Material and Method. The research was made at the Academy of Physical Education in Katowice in the Department of Biomechanics. For the exercise analysis three gymnasts specialize in acrobatic jumps were chosen. The following were used:- cinematography,- piezoelectric dynamometry.Results. To know the structure of the movement of the jump and somersault in both exercises, the movement track of the center of gravity, the change of angles in joints, reaction of the ground and the turn of the body have been analysed. On this ground the mechanism of the body turn has been specified and the effectivity of the takeoff in both kinds of jumps has been observed. The low effectivity of the somersault take-off is a result of the loss of the jump height when giving the body an appropriate quality of the turn to make a full turn.Conclusions.1. The main and decisive quality of the somersault is technicity and vivacity.2. To be effective during the take-off one must have an appropriate turn with the best loss of body center of gravity (BCG).3. During the somersault the body turn is connected with a big range and velocity of unbending the hip joints. This is followed by not quite fully unbending the knee joints of a less range and velocity.4. Although the jump is less high, one needs to use more kinetic energy connected to giving your body a rotary motion.5. To examine this movement it may be useful when perfecting the technique of somersault methodology.
Authors and Affiliations
Małgorzata Łukjan, Janusz Parlak
Keywords
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