Esteira com velocidade controlada para captação da marcha

Abstract

Histological and electrophysiological methods for evaluation of peripheral nerve regeneration do not faithfully reproduce the functional index of limbs, even in controlled experimental conditions. Some methods of functional evaluation have been proposed, but their correlation to histological and electrophysiological data is not completely established, requiring more investigations with improvement of collection, management and processing of obtained data. In this study we developed a treadmill with controlled speed for recording footprint of rats submitted to different kinds of sciatic, fibular and tibial nerve lesions. The footprints were obtained on a walking track by means of a webcam connected to the treadmill and a computer with capacity to record the gait that will be submitted to functional evaluation. The developed treadmill allows the collection and filming of gaits and it has been tested in current experimental studies in rats with sciatic nerve lesion submitted to different kinds of treatment. The treadmill also enables researchers to record gait with constant, controlled and pre-established speed, with the possibility of direct visualization through the treadmill wall. In this manner, some variables that could damage the results of the research are resolved.

Ineficácia da laserterapia aplicada no trajeto do nervo e nas raízes medulares correspondentes

“…A treadmill with controlled speed developed by Monte-Raso et al 16 was used to capture gait for the functional assessment. The treadmill, with speed adjustment from 0 to 14 meters per minute, was made in acrylic, whose transparency allowed the filming of the animals' gait using a 1.3 megapixel webcam coupled to a portable computer.…”

Low-Level Laser Effect on Peripheral Sciatic Regeneration Under the Systemic Inflammatory Condition of Periodontal Disease

“…The recordings were done using a webcam, plugged through a USB cable directly connected to a portable computer. 14 After recording, an image of each animal was selected and evaluated through the Image Pro-plus 6.0 (Media Cybernetics, Georgia, United States) program with variable measurements as suggested by Bain et al, 15 Animal Euthanasia On the last day of the experiment (37th), all animals were weighed and anesthetized; dissection was done followed by the removal of 2 cm of the sciatic nerve, distal to the compression procedures for morphological and oxidative stress of the nerve tissue analysis. Soon after, the animals were euthanized by guillotine decapitation and their left hemimandibles were collected for posterior radiographic analysis.…”

Avaliação Funcional e de Trofismo Muscular Após Compressão Experimental do Isquiático e Tratamento com Mobilização Neural

“…Para a análise funcional foi utilizada uma esteira com velocidade controlada (Insight®, Brasil), com base em acrílico, possibilitando o registro da marcha por uma webcam 11 . Foi selecionada uma imagem, de cada animal, e avaliada no programa Image Pro-plus 6.0, com a mensuração de: comprimento da pegada (PL), a abertura total dos dedos, do 1º ao 5º (TS) e a abertura dos dedos intermediários, do 2º ao 4º (IT), do membrolesionado ou experimental (E) e no lado contralateral ou normal (N).…”