Percorrer por autor "Dziadek, Bartosz"
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- Postural stability of polish special forces operatorsPublication . Dziadek, Bartosz; Paśko, Wojciech; Podgórski, Rafał; Śliż, Maciej; Krawczyk, Grzegorz; Brożyna, Maciej; Marszałek, Patryk; Iskra, Janusz; Maciejewski, Konrad; Gouveia, Élvio Rúbio; França, Cíntia; Przednowek, Krzysztof; Gouveia, Élvio Rúbio; França, CíntiaThe level of balance can play an essential role in a soldier’s performance. For a Special Forces soldier, the footwear used or extra weight may be important factors affecting their balance level during combat operations or trainings. Therefore, the purpose of the study was to assess the level of static balance of Special Forces Operators and to determine the influence of select elements of a soldier’s combat uniform and equipment on balance levels. The study group consisted of 37 Polish Special Forces Operators. To assess the level of static balance, the Romberg test was used in three variants (barefoot, with shoes, and with shoes, helmet, and vest). The measurements were made using the AMTI AccuGait portable force platform. The results of the analysis showed that the calculated average values of selected static balance parameters of soldiers differed depending on the variant of the Romberg test used, and in most cases, those differences were statistically significant ( α<0. ). The lowest average values of parameters characterizing the level of static balance of Special Forces soldiers were calculated for barefoot measurements. The measurements with shoes and additional loads showed a statistically significant increase in almost all analysed parameters compared to barefoot measurements.
- System for Estimation of Human Anthropometric Parameters Based on Data from Kinect v2 Depth CameraPublication . Krzeszowski, Tomasz; Dziadek, Bartosz; França, Cíntia; Martins, Francisco; Gouveia, Élvio Rúbio; Przednowek, KrzysztofAnthropometric measurements of the human body are an important problem that affects many aspects of human life. However, anthropometric measurement often requires the applica tion of an appropriate measurement procedure and the use of specialized, sometimes expensive measurement tools. Sometimes the measurement procedure is complicated, time-consuming, and requires properly trained personnel. This study aimed to develop a system for estimating human anthropometric parameters based on a three-dimensional scan of the complete body made with an inexpensive depth camera in the form of the Kinect v2 sensor. The research included 129 men aged 18 to 28. The developed system consists of a rotating platform, a depth sensor (Kinect v2), and a PC computer that was used to record 3D data, and to estimate individual anthropometric parameters. Experimental studies have shown that the precision of the proposed system for a significant part of the parameters is satisfactory. The largest error was found in the waist circumference parameter. The results obtained confirm that this method can be used in anthropometric measurements.