Starting from the sense that laterality represents the functional innegality of cerebral hemispheres asymmetry, and from the sumption that this functional asymmetry although can be subdued by training, it not receed completly,we will try to emphasize these aspects on advanced athletes practicing martial arts, black belt level. The hypothesis of this researchis that laterality can be highlighted bytheinstrumentalityof cinematic parameters analysys of the movements that we consider automatized. For this purpose we used MOVEN from Xsens equipment for human motion tracking using inertial navigation sensors. We have done position aquisitions for the subject's segments and these data underlied on callculation of fist's pathway and joint angles further analized. Data aquisitions took place in Biomotry department in National Institute for Sport Research from Bucharest. Equipped with MOVEN Xsens equipament, four athletes karate Shotokan practitioners, registered at Sports Club AIKO Bucharest, with an experience of 5 to 15 yearsof practice, performed Heian Nidan kata. On each athlete has been done three data aquisition sessions. Then, having an eye on the avatar recording offered by the dedicated software of the MOVEN equipment, we choose the time sequencesin which we analyzed and compared joint angles on elbow (arm - forearm) and in shoulder (arm vertical axis) and knee (upper leg - lower leg) boyh on the left and right side for emphasize the differences in identic postures (times 1, 2, 3 to the left and 4, 5 and 6 to the right). This angles has been calculated both for the right and left limbs.

laterality, MOVEN, cinematic parameters analysys .