The healing oil exerted a greater effect on fibroblast proliferation, whereas the 60 J/cm(2) laser was more effective in stimulating angiogenesis and scar-tissue maturation.

No abstract

Chickens were divided into two groups, one caged and the other penned. Superficial digital flexor tendons from penned chickens showed greater tensile strength, withstanding a greater strain before rupture than tendons from caged chickens. The tensile region of tendons from penned chickens showed more swelling in acetic acid and a higher hydroxyproline concentration compared with caged chickens, indicating the presence of large collagen amounts in the former. The tensile region of penned chickens presented higher glycosaminoglycan concentrations than the same region of caged chickens. For both groups, the predominant glycosaminoglycan in the compression regions was chondroitin sulfate, whereas dermatan sulfate was found in the tensile regions. N-terminal analysis identified the small proteoglycans fibromodulin and decorin. SDS-PAGE indicated that decorin was present in all regions and fibromodulin was mainly observed in the tensile region. These results indicate that an external condition, in this case the area available for locomotion, might influence the synthesis of extracellular matrix components and the mechanical properties of the tendon.

This study investigated if nonforced active exercise alters the biomechanical and biochemical properties of calcaneal tendon during maturation. Chickens at 1, 5, and 8 months old were divided into two groups: caged and penned. Intact tendons were used for biomechanical analysis, but they were divided into tensile and compressive regions for quantification of hydroxyproline and glycosaminoglycans. The exercise increased tendon strength after the fifth month, energy absorption in the eighth month, and ultimate tensile stress in the first month. Age increased tendon strength and energy storage and reduced stiffness but did not alter stress. There was an increase in collagen content in the fifth month. Glycosaminoglycans showed a progressive decline in the tensile region. Thus, some biomechanical and biochemical changes depend on the maturation process itself and also are influenced by spontaneous exercise, showing that mechanical stimulation of low intensity may help to improve the quality of the tendon.

An increase in the capacity of athletic performance depends on adequate nutrition, which ensures optimal function of the musculoskeletal system, including tendon stability. However, little is known about the status of tendons and extracellular matrix modifications during malnutrition and nutritional recovery when leucine is used in response to exercise conditioning. The purpose of this study was to evaluate the collagen content and biomechanical aspects of the deep digital flexor tendon (DDFT) in malnourished rats submitted to nutritional recovery (control diet or leucine-rich diet) and aerobic physical activity. After 60 days of undernourishment (6% protein diet), the malnourished rats were subsequently nutritionally recovered with a control diet or leucine-rich diet and trained or not (swimming, without overload) for 5 weeks. The biomechanical analysis and quantification of hydroxyproline were assessed in the DDFT in all experimental groups. The leucine-rich diet increased hydroxyproline content in the tension region, independently of the training. In the compression region, hydroxyproline content was higher in the malnourished and leucine-trained groups. Biomechanical analysis showed a lower load in the malnourished and all-trained groups. The lowest stress was observed with control-trained animals. The nutritional-recovered groups showed higher strain values corresponding to control group, while the lowest values were observed in malnourished and trained groups. The results suggest that a leucine-rich diet stimulates collagen synthesis of the DDFT, especially when in combination with physical exercise, and seems to determine the increase of resistance and the biomechanical characteristics of tendons.

O PREVENTT é um programa de extensão que atua na prevenção e tratamento de pacientes com doenças ocupacionais (LER/DORT). Devido ao crescimento do núcleo, aumento do número de pacientes e complexidade de organização, o desenvolvimento de uma gestão interna tornou-se necessária. Assim, após parceria estabelecida entre o curso de Engenharia de Produção e o Programa PREVENTT, surgiu o Projeto Gestão, que visa auxiliar nas atividades de planejamento, execução e avaliação de desempenho relacionados à gestão interna (equipe PREVENTT) e atendimento externo (sistematização do fluxo e pacientes e atendimento). Para tanto, o método de pesquisa adotado foi a pesquisa-ação, onde a equipe de gestão pôde não somente investigar o XXXVII ENCONTRO NACIONAL DE ENGENHARIA DE PRODUCAO"A Engenharia de Produção e as novas tecnologias produtivas: indústria 4.0, manufatura aditiva e outras abordagens avançadas de produção" Joinville, SC, Brasil, 10 a 13 de outubro de 2017. XXXVII ENCONTRO NACIONAL DE ENGENHARIA DE PRODUCAO "A Engenharia de Produção e as novas tecnologias produtivas: indústria 4.0, manufatura aditiva e outras abordagens avançadas de produção" Joinville, SC, Brasil, 10 a 13 de outubro de 2017. 2 funcionamento da clínica, mas identificar, adaptar e aplicar práticas de gestão organizacional da saúde no núcleo. No decorrer do projeto, foram aplicadas quatro ferramentas de gestão, quais sejam: planilha de fluxo de pacientes, pesquisa de satisfação da equipe, pesquisa de clima e pesquisa de satisfação dos clientes. Os resultados evidenciam a importância do programa para alunos, professores e para comunidade. De maneira geral, a equipe se mostrou satisfeita com o programa, uma vez que todos os respondentes consideram o PREVENTT um excelente ou bom lugar para se trabalhar, e indicariam para outras pessoas. Com relação à interação com a comunidade, o programa foi avaliado positivamente nos critérios relacionados ao atendimento e principalmente respeito (fator com maior nota de satisfação). Adicionalmente, o objetivo maior de redução ou ausência de dor foi alcançado na totalidade, uma vez que todos os pacientes entrevistados relataram redução na intensidade da dor após o tratamento. Esses aspectos positivos ressaltam a eficácia do atendimento, do método de tratamento utilizado e a importância do programa.Palavras-chave: gestão da saúde, gestão organizacional, gestão de serviços; distúrbios osteomusculares relacionados ao trabalho (DORT)

No abstract

The aim of this study was to evaluate if spontaneous (nonforced active) exercise and age (maturation process) alter the biomechanical and biochemical properties of superficial digital flexor tendon. Chickens aged 1, 5, and 8 months were divided into two groups: caged and penned. The caged group was reared in an area of 0.5 m(2) (3 animals/cage), while the penned group was reared in an area of 60 m(2) (3 animals/area). For biochemical analysis, the tendon was divided into tensile and compressive regions for quantification of hydroxyproline and glycosaminoglycan content. Biomechanical properties were analyzed from tensile tests of intact tendons. The biomechanical measurements were taken at maximum load and maximum stress. In both the caged and penned groups, maximum load and energy absorption increased with maturation; however, the elastic modulus, maximum stress, and maximum strain did not increase with maturation. Exercise resulted in a higher load, stress, and elastic modulus in the fifth month. Collagen content increased with age in the penned group and with exercise in the fifth and eighth months. Exercise results in a higher expression of glycosaminoglycans in young tendons compared to mature tendons. Thus, low-intensity mechanical stimuli promote the synthesis and possible rearrangement of molecules in immature tendons, whereas inactivity leads to deleterious effects on the material properties (maximum stress and elastic modulus) during growth and maturation.