A study of healthy individuals (n = 90) was carried out under standardized environmental conditions using tests of adaptive kinematics in the form of a battery of postural tests. A model of adaptive kinematics of healthy individuals, resistant to personal (age and anthropometric) uncertainties, has been developed. 34 criteria selected from a total pool of 170 indicators were used as relevant parameters underlying the developed biomechanical model.
The aim of the study was to develop a methodology for assessing the state of motor adaptation at the level of the main joint elements of the locomotor system when performing postural deviations with inertial components in a group of healthy volunteers (n=24). To conduct the study we used the “Teslasuit” smart suit as a technology with a system of inertial measuring units. A virtual skeletal model of the subject’s body was reconstructed on the obtained quaternions for each direction of spatial displacement. Parameters of inertial kinematic were calculated by the Fast Fourier Transform in the frequency bands of 0.1–5, 6–10, and 11–15 Hz. To assess motor adaptive reactions, we developed the following tests: ventrodorsal displacement test; laterolateral displacement test; linear displacement test in vertical direction; axial rotation test around vertical. All test tasks were performed using biofeedback as a virtual reality environment. The study revealed the presence of universal motor adaptation mechanisms with activation of the components of axial rotation of the trunk and axial rotation and flexion of the leading shoulder joint. At the same time, a dynamic phase of postural regulation during axial rotations and tilts of the body leads to the activation of motor adaptation mechanisms from the leading hip, knee, and ankle joints, while axial movements form a picture of the kinematic stabilization of these locomotor system elements.
оценка инфаркта головного мозга, как правило, базируется на применении наиболее адаптированных классификаций TOAST и ASCOD. При этом их общий недостаток связан с их этиопатогенетической ориентацией, что резко ограничивает клиническую ценность данных классификаций для последующей медицинской реабилитации. В то же время международная классификация функционирования, ограничения жизнедеятельности и здоровья, с одной стороны, более применима в восстановительной медицине, а с другой -достаточно сложна в описании комплексной проблемы моторных нарушений при инфаркте головного мозга. Целью исследования являлась разработка классификации моторных нарушений при инфаркте головного мозга.
An important problem of modern clinical biomechanics is to identify complex movement markers that make it possible to evaluate complex motor adaptive reactions regardless of age, gender, and anthropometric deviations. The purpose of the present study was to develop a method for analysis of human motor adaptive reactions based on calculating specific biomechanical markers obtained by performing diverse kinematic tests. The study involved 90 volunteers with a right-leading kinematic side at an age of 18.8 [16.8/20.8] years, with a height of 171.8 [179.2/164.8] cm, a body weight of 65.3 [76.6/58.5] kg, and the ratio of men and women – 5 : 4. During the study, all participants underwent biomechanical analysis using the TESLASUIT remote motion capture suit and performing diverse kinematic tests. In the course of the study, a new method for analyzing human motor adaptive reactions was developed. It is based on calculating specific time markers of the active phase, average angular deviation markers, and inertial kinematic markers. All markers are calculated after each kinematic tests “frontal stability”, “sagittal stability”, “spatial orientation”, and “stimulus identification”. Our survey revealed that specific (p < 0.001) markers of the first test are the time indicators of the active phase, the markers of the second and fourth tests are associated with the average angular deviation parameters, and the specific indicators of the third test can be the inertial kinematics of thighs, legs, and feet.
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