Izvorni znanstveni članak
Comparative Biomechanical Analysis of the Rotational Shot Put Technique
Milan Čoh
Stanko Štuhec
Matej Supej
Sažetak
The study aimed to establish the modalities of the rotational shot put technique of two elite shot putters with substantially
different constitutional characteristics. A biomechanical analysis of the technique was carried out using the APAS
3-D kinematic system, whereby a 15-segment model of shot putters was defined by 18 reference points. To enable the calculation
of the kinematic and dynamic parameters, independent routines were programmed by the Matlab software.
Anthropometric characteristics were established on the basis of 15 variables measured by the International Biological
Programme (IBP) procedure. The results of the study revealed some differences between the athletes in terms of their
mesomorphic constitutional component, body mass index, circular measures of the lower and upper extremities and the
muscular, fat and bone mass. The technique models of both shot putters differ mostly in terms of the following kinematic
and dynamic parameters: absolute release velocity, height of release, maximum angular velocity of the elbow of the
throwing arm, trajectory of the centre of gravity of the body and the shot, torsional rotation of the shoulder axis relative to
the hip axis, maximum force applied to the shot, kinetic energy and the kinetic energy differential of the shot.
Ključne riječi
shot-put; technique; model; anthropometrics; kinematics
Hrčak ID:
23736
URI
Datum izdavanja:
8.5.2008.
Posjeta: 4.712 *