Przeglądanie według Autor "Wutzke, Maria Luiza Serradourada"

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Histological aspects of whole-body vibration in the knee remobilization of Wistar rats
(Wydawnictwo Uniwersytetu Rzeszowskiego, 2022) Roncini Gomes da Costa, Juliana; Freitas Tavares de, Alana Ludemila; Bertolini, Gladson Ricardo Flor ; Wutzke, Maria Luiza Serradourada; Boaro, Carolina De Toni; Rodriguez, Diego Francis Saraiva; Costa, Rose Meire; de Fátima Chasko Ribeiro, Lucinéia
Introduction and aim. The knee is one of the joints where immobilization is most used, however, it can cause morphological changes in the joint tissues and is a challenge to be overcome during rehabilitation. Whole-body vibration (WBV) is capable of generating repetitive oscillatory movements, which cause mechanical stimuli that interfere with tissue plasticity. The aim of this study was to analyze the knee morphology of Wistar rats submitted to remobilization with WBV. Material and methods. 32 male rats were used, divided into four groups (n=8): Control Group (G1), Immobilization Group (G2), Immobilized Group and Free Remobilization (G3), Remobilized Group with WBV (G4). For immobilization, a plastered apparatus was used for 15 days. G3 and G4 carried out free remobilization or with WBV, respectively, for 2 weeks. The knee joints were processed for light microscopy. Results. The WBV led to a reduction in the inflammatory infiltrate in the articular cavity and greater presence of adipocytes in the subintima of the synovial membrane. Conclusion. Remobilization with WBV induced a better tissue response in the synovial membrane when compared to free remobilization.
Morphology of extensor digitorum longus of Wistar rats after remobilization by vibratory platform
(Wydawnictwo Uniwersytetu Rzeszowskiego, 2019) Camilo, Izabela Rodrigues; Wutzke, Maria Luiza Serradourada; Costa, Rose Meire; Bertolini, Gladson Ricardo Flor; Ribeiro, Lucinéia de Fátima Chasko
Introduction. In exercise, vibrations are performed in order to produce rapid and short changes in muscle length. These changes are detected by sensory receptors, in response try to dampen the vibratory waves through a modulation of muscle stiffness. However, its effects on the morphology of muscle tissue are still not fully established, especially after long periods of immobilization. Aim. To compare the effects of the vibratory platform on the remobilization of the extensor digitorum longus (EDL) muscle of Wistar rats with free remobilization. Material and methods. 20 rats were divided into: CG (Control), IG (immobilized), IFG (immobilization and free remobilization), IPG (immobilization and remobilization with vibratory platform). The immobilization was performed on the pelvic limb for 15 days. The remobilization with vibratory platform was done for 10 minutes daily, for 2 weeks. The EDL was processed for histological analysis of cross-sections. Results. The area, larger diameter, smaller diameter and fiber density of the EDL muscle of GI presented significant alteration when opposed to CG, IFG and IPG. The density of nuclei of the EDL muscle of IG presented a significant increase when opposed to the others, and IPG also presented a significant increase when compared to CG. Conclusion. The morphology and morphometry of the EDL muscle tissue were affected, and both free and vibration platform remobilization re-established the morphological aspects of the muscle fiber, without significant differences between the methods.