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Models and Modelling of the Dynamic Moments of Inertia in Kinetic Sequences of Human Body

From the biomechanical point of view the dynamic momentum of inertia in kinetic structure of games plays an important role, especially while performing motions in open and closed kinetic sequences. The principal task of the research is aimed at models and modeling of the dynamic moment of inertia of specific body parts and the body as a whole. Some important definitions are pointed out about dynamic moments of inertia, based on approximate geometrical shapes of specific segments and anthropometric values. For each body configure-ration, firm body parts of simple geometric shapes are used (circular cylinders, sticks and ellipsoids). The suggested model for the head, neck and fist is modeled as ellipsoid, the model for forearm, upper arm, lower leg and thigh is modeled on cylinders and the body trunk and foot are modeled as parallelepiped. Being aware of sequential body configuration and time shifts it is possible to calculate the dynamic moment of inertia. The suggested models for body, arm and leg are those that examine possible configurations and influential values of mass distribution. The description covers a choice of optimal models for modeling the dynamic moments of inertia that are presented as the closest approximation for the dynamic moment of inertia in terms of dynamics.

biomechanics; dynamic moment of inertia; models and modeling; kinetic sequences (particular body parts and body as a whole)

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