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Jacek Wilczyński

Postawa ciała w płaszczyźnie strzałkowej a średni punkt obciążenia stóp u dziewcząt i chłopców w wieku 12-15 lat

Celem badań była analiza związku między postawą ciała w płaszczyźnie strzałkowej a reakcjami równoważnymi wyrażonymi średnim punktem obciążenia (SPOX) i średnim punktem obciążenia (SPOY) u dzieci w wieku 12-15 lat. Badaniami objętych zostało 503 dzieci z wylosowanych uprzednio: Szkoły Podstawowej nr 13 i Gimnazjum nr 4 w Starachowicach. W badaniach postawy zastosowano technikę fotogrametrii przestrzennej wykorzystującą efekt mory projekcyjnej. Równowagę badano na platformie stabilograficznej. Wartość SPOX dla całej grupy badanych oscylowała od -0,86 (mm) przy OE do -2,49 (mm) przy CE. Różnica w teście Romberga 1,63 (mm). W postawie prawidłowej od -0,90 (mm) przy OE do -2,13 (mm) przy CE. Różnica w teście Romberga 1,23 (mm). W postawie wadliwej od -0,81 (mm) przy OE do -3,02 (mm) przy CE. Różnica w teście Romberga 2,21 (mm). Wartość SPOY dla całej grupy badanych oscylowała od 39,72 (mm) przy OE do 40,16 (mm) przy CE. Różnica w teście Romberga -0,44 (mm). W postawie prawidłowej od 39,37 (mm) przy OE do 39,20 (mm) przy CE. Różnica w teście Romberga 0,18 (mm). W postawie wadliwej od 40,22 (mm) przy OE do 41,56 (mm) przy CE. Różnica w teście Romberga -1,34 (mm). Analiza wariancji wykazała istotny efekt opcji badania (p < 001). SPOX w teście przy CE istotnie zwiększył się zarówno w postawie wadliwej, jak i prawidłowej. Dzieci z postawą wadliwą mają nieco wyższe wartości SPOX. Choć wartość SPOY w postawie wadliwej była nieco wyższa, to analiza wariancji nie wykazała istotnych efektów.

Open access

Jacek Wilczyński

Abstract

Introduction. The aim of the study was to assess the relationship between the body composition and postural stability of goalkeepers representing the Polish National Junior Handball Team. Material and methods. Body composition was assessed by means of bioelectrical impedance analysis. Postural stability was examined using the AccuGait AMTI force platform. Results. The body composition of the subjects was correct. All of the subjects had very good postural stability. Postural sway was higher in the sagittal plane than in the frontal one. Path Length and Average COP Speed were significantly increased during the closedeyes trial. Only Fat Mass (%) and Fat Mass (kg) were significantly directly correlated with Area Ellipse (cm2) (OE, open eyes). Inverse correlations occurred between Fat-Free Mass (kg) and Average Load Point Y (cm) (OE) as well as Average Load Point Y (cm) (CE, closed eyes). Muscle Mass (kg) was significantly inversely correlated with Average Load Point Y (cm) (OE) and also with Average Load Point Y (cm) (CE). Body Mass Index correlated negatively only with Average Load Point Y (cm) (CE). Total Body Water (kg) was significantly inversely correlated with Average Load Point Y (cm) (OE) and also with Average Load Point Y (cm) (CE). However, Total Body Water (%) only correlated negatively with Area Ellipse (cm2) (OE). Conclusions. Postural stability was determined by the composition and structure of the body. Single-sided sports specialisation can lead to static disorders of the body during the developmental period discussed. Therefore, systematic tests are needed to monitor the body composition and postural stability of handball goalkeepers.

Open access

Jacek Wilczyński

Abstract

The aim of the study was to assess postural stability of goalkeepers from the Polish national junior handball team. Eleven juniors of the Polish national handball team (age 16.82 ± 1.6 years, body height 191.27 ± 3.1 cm, body mass 88.41 ± 12.26 kg, BMI 24.18 ± 3.22 kg/m2) were selected for the study. The Biodex Balance System and AccuGait AM¬TI platform were used to evaluate postural stability. The obtained results indicated good postural stability of the subjects. During the Biodex Balance System platform tests, all subjects presented very good postural stability and maintained within Zone A. Postural sway was greater in the sagittal plane compared to the frontal one. Most of the participants demonstrated slight backward tilts, but maintained in Quadrant IV. During the AccuGait AMTI platform trial, Path Length and Average COP Speed significantly increased in the test performed with closed eyes. Furthermore, there were significant positive correlations between the number of variables obtained during the Biodex Balance System and AccuGait AMTI tests. Proper and stable posture are necessary conditions to be met to carry out most free movements and locomotion. They play a significant role in the game of a handball goalkeeper and for that reason, postural stability testing of handball goalkeepers is an important element of coordination training. Thus, the use of postural stability exercises implementing the biofeedback method on stabilo and dynamometric platforms is practical and justifiable.

Open access

Jacek Wilczyński, Przemysław Karolak, Joanna Karolak, Igor Wilczyński and Agnieszka Pedrycz

Abstract

The aim of this study was the electromyographic analysis of the erector spinae muscle, using the Noraxon Tele Myo DTS equipment. It’s used to test the neuromuscular function, during physical activity. It allows for detailed localization of the pathological changes in the muscle tissue. It can be also helpful to define the functional disorders of the muscular system in children with cerebral palsy. For the purpose of the study, a six-year-old girl with this disease was examined, one of the types of EMG - surface electromyography being used. The problem which is of primary importance in children with cerebral palsy is a widely understood damage of the musculoskeletal system. The test was performed in five starting positions, with the electrodes placed on the lumbar spine. As a result of the analysis, a motor skills disorder, asymmetry of muscle tension and dystonia was diagnosed. Dystonia may be the result of other disease, characteristic to children with cerebral palsy – scoliosis.

Open access

Sławomir Rudzki, Tadeusz Dryka, Piotr Wilczyński, Paweł Bernat, Jacek Bicki, Jacek Furmaga and Jacek Piłat

Upper gastrointestinal haemorrhage is a major medical emergency and accounts for approximately 7,000 admissions to hospitals in Scotland each year. Over the last 10 years there has been a number of improvements in diagnosis and conservative management of the condition, which significantly reduced the ratio of life-threatening cases requiring an emergency surgery. Despite these achievements surgical intervention or, if accessible, endovascular procedures must be undertaken as emergency actions, should conservative management fail. Vascular malformations of the duodenum are less frequent causes of upper GI bleeding. Duodenal varices found endoscopically occur in 0.4% of patients with portal hypertension (PHT) and are believed to be caused mainly by liver cirrhosis, idiopathic PHT, extrahepatic PHT, or previous surgical trauma. The duodenal bulb is their most common site, followed by the second portion of the duodenum. Forty per cent of patients with PHT have duodenal varices at angiography; however, their penetration unusually affects submucosa, hence no symptoms develop. Isolated bleeding duodenal varices are scarcely reported in literature, although present a significant surgical problem: massive haemorrhage combined with failure to identify them as a source has led to catastrophic outcomes with mortality rate of 40%. The case hereby presented is unique in several aspects. Duodenal varices were explored on emergency laparotomy rather than on prior endoscopies, which, performed by the same well-established endoscopists, were twice negative. This corresponds to the study by Cottam et al. stating that duodenal varices may not penetrate the submucosa, hence haemorrhages of their origin may even be more difficult to diagnose on endocsopy. Secondly, the haemorrhage here reported was undoubtedly a life-threatening condition that required a multidisciplinary team to be managed successfully. Along with Shirashi et al. we confirm that surgical ligation followed by the excision of duodenal / small intestinal varices may be an effective method of their management - both cases have been free of recurrence at 15 months postoperatively. In contrast to the study by Hashizume et al. the duodenal varices here presented were not associated with portal hypertension (PTH). Finally, duodenal varices located in the posterolateral aspect of the descending duodenum are less common as the majority of cases reported so far were of duodenal bulb location.