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1

Analysis of two methods indicating the shoulder joint angles using three dimensional data

100%

Skublewska-Paszkowska M., Dekundy M., Lukasik E., Smolka J.

Physical Activity Review

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2018

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vol. 6

37-44

EN

The article contains a comparative analysis of two methods of calculating angles in the shoulder joint of the right upper limb. For the purposes of this study, a marker -vector method was developed that calculates angles based on retroreflective 3D marker’s positions and vectors created on the basis of their positions. Movements from two types of sports (sword fighting and tennis forehand) were analysed. These movem ents were recorded using an optical motion capture system. The obtained results were compared with the values read from the Plug -in Gait biomechanical model from C3D files. The results show that the proposed method is more universal and can be used indepen dently. In addition, the Plug -in Gait model is not adequate for the analysis of the acquired shoulder angles of tennis players.

2

The influence of different Cardan sequences on three-dimensional cycling kinematics

100%

Sinclair J., Hebron J., Hurst H., Taylor P.

Human Movement

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2013

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vol. 14

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issue 4

334-339

EN

Purpose. Three-dimensional (3-D) kinematics are widely utilized to quantify movement in cycling analyses. Three-dimensional angular kinematics are obtained using the Euler/Cardan technique, however, Cardan angles are influenced by their ordered sequence and may affect the resultant angular parameters. An XYZ sequence of rotations is currently recommended, although this technique may not always be appropriate when coronal and transverse plane angles are quantified. This study aimed to determine the influence of the six available Cardan sequences on 3-D lower extremity kinematics during cycling. Methods. Kinematic information was obtained from twelve cyclists using an optoelectronic 3-D motion capture system operating at 250 Hz. Repeated measures ANOVAs were used to compare the kinematic parameters obtained using the six Cardan sequences, and intraclass correlations were employed to detect the presence of crosstalk across planes. Results. The results show that discrete kinematic parameters in the sagittal, coronal and transverse planes were significantly greater when using the YXZ and ZXY sequences. It was also observed that these sequences were associated with the strongest correlations from the sagittal plane and also exhibited evidence of gimbal lock. Conclusions. The results suggest that the accurate representation of 3-D kinematics during cycling should continue utilizing the XYZ sequence and avoid the use of the YXZ and ZXY sequences.

3

Rehabilitation robot prototypes developed by the ITAM Zabrze

89%

Michnik A., Brandt J., Szczurek Z., Bachorz M., Paszenda Z., Michnik R., Jurkojć J., Rycerski W., Janota J., Michnik A., Brandt J., Szczurek Z., Bachorz M., Paszenda Z., Michnik R., Jurkojć J., Rycerski W., Janota J.

Archive of Mechanical Engineering

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2014

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vol. 61

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issue 3

4

Design and evaluation of a steamvr tracker for training applications – simulations and measurements

75%

Maciejewski M., Piszczek M., Pomianek M., Pałka N., Maciejewski M., Piszczek M., Pomianek M., Pałka N.

Metrology and Measurement Systems

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2020

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vol. 27

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issue 4

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Analysis of two methods indicating the shoulder joint angles using three dimensional data

The influence of different Cardan sequences on three-dimensional cycling kinematics

Rehabilitation robot prototypes developed by the ITAM Zabrze

Design and evaluation of a steamvr tracker for training applications – simulations and measurements