Wyniki wyszukiwania - BazTech

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The Standard Deviation of Differential Index as an innovation diagnostic tool based on kinematic parameters for objective assessment of a upper limb motion pathology

Jurkojč J., Wodarski P., Michnik R. A., Bieniek A., Gzik M., Granek A.

Acta of Bioengineering and Biomechanics

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2017

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Vol. 19, no. 4

77--87

EN

Indexing methods are very popular in terms of determining the degree of disability associated with motor dysfunctions. Currently, indexing methods dedicated to the upper limbs are not very popular, probably due to difficulties in their interpretation. This work presents the calculation algorithm of new SDDI index and the attempt is made to determine the level of physical dysfunction along with description of its kind, based on the interpretation of the calculation results of SDDI and PULMI indices. Methods: 23 healthy people (10 women and 13 men), which constituted a reference group, and a group of 3 people with mobility impairments participated in the tests. In order to examine possibilities of the utilization of the SDDI index the participants had to repetitively perform two selected rehabilitation movements of upper extremities. During the tests the kinematic value was registered using inertial motion analysis system MVN BIOMECH. Results: The results of the test were collected in waveforms of 9 anatomical angles in 4 joints of upper extremities. Then, SDDI and PULMI indices were calculated for each person with mobility impairments. Next, the analysis was performed to check which abnormalities in upper extremity motion can influence the value of both indexes and interpretation of those indexes was shown. Conclusion: Joint analysis of the both indices provides information on whether the patient has correctly performed the set sequence of movement and enables the determination of possible irregularities in the performance of movement given.

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Motor functions assessment method based on energy changes in gait cycle

Michnik R., Nowakowska K., Jurkojč J., Jochymczyk-Woźniak K., Kopyta I.

Acta of Bioengineering and Biomechanics

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2017

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Vol. 19, no. 4

63--75

EN

The aim of the research was to determine the energy changes during the gait cycle for a group of healthy children and a group of patients with cerebral palsy, and to compare the value of energy expenditure (EE) with the determined values of the Gillette Gait Index (GGI) and the Gait Deviation Index (GDI). Methods: The study group consisted of 56 children with regular gait and 56 patients with diagnosed cerebral palsy (CP). The gait kinematics was determined by BTS Smart System. Based on the identified position of the body mass, the following parameters were determined: the potential energy, kinetic energy, and total energy. The values were standardized to 100% of the gait cycle. The values of the Gillette Gait Index (GGI) and the Gait Deviation Index (GDI) were calculated using the authors’ own software. Results: Values of potential, kinematic and mechanical energy changes and mean values of total energy (energy expenditure – EE) were calculated for a reference group and for patients with CP. The obtained results were standardized in relation to the body mass and stride length. Furthermore, the values of the Gillette Gait Index (GGI) and the Gait Deviation Index (GDI) were calculated. Statistical analysis of the obtained results was performed. The Spearman rank correlation coefficient was defined between the calculated GGI and GDI values and energy expenditure EE. Conclusions: Values of energy expenditure changes can be used as an objective comparative tool for gait results concerning children with various neurological and orthopaedic dysfunctions.

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Zastosowanie platformy Kistlera do monitorowania postępów rehabilitacji

Jureczko P., Jurkojč J., Michnik R.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

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2001

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z. 16

49-54

PL

W pracy przedstawiono badania doświadczalne dotyczące monitorowania postępów rehabilitacji oraz sposób wykorzystania platformy Kistlera umożliwiający poprawę równomiernego obciążenia kończyn podczas stania dla różnych dysfunkcji.

EN

Experimental researches concerning both monitoring of progresses in rehabilitation and directions for use of a Kistler platform enabling improvement of steady load of lower limbs while standing are presented in the paper.

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Analiza stanu naprężeń i przemieszczeń w gwoździowaniu śródszpikowym z wykorzystaniem MES

Marciniak J., Kaczmarek M., Walke W., Jurkojč J.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

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2001

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z. 17

107-111

PL

Przedstawiono wyniki analizy stanu naprężeń i przemieszczeń w zespoleniu śródszpikowym kości piszczelowej dzieci. Obliczenia dla różnych grup wiekowych wykonano w celu doboru optymalnych własności mechanicznych gwoździ i ich cech geometrycznych.

EN

Results of stress and strain in intramedullar fixation of child ’ s tibia are presented. Calculations were carried for children at different ages. Optimal mechanical properties and geometrical features of intramedullary nails were calculated.