Celina Cordeiro de Carvalho

Influência da posição ortostática na ocorrência de sintomas e sinais clínicos de venopatias de membros inferiores em trabalhadores de uma gráfica na cidade do Recife-PE

Although there is no evidence of direct causal relationship between venous disease and work, currently there is consensus of medical opinion that posture at work can aggravate this type of disease. The purpose of this study was to evaluate the influence of prolonged orthostatic posture in the onset and/or worsening of signs and symptoms related to lower limb venous disorders among employees of a printing company in Recife, between May and July 2008. We analyzed the conditions and means made available for employees to perform their labor activities. They answered a questionnaire with questions related to lower limb circulatory disorders, reporting complaints throughout and at the end of working day. Lower limbs perimetry was tested before and after work. Sixty-four per cent of workers had varicose veins and increased perimetry measures after their working hours. Reported complaints included feeling heavy, fatigue, pains, cramps, and lower limb edema. The results indicated a positive association between working conditions at the investigated company and emerging or worsening of signs and symptoms related to venous disorders in lower limbs of its employees.

Estudo das relações entre mastigação e postura de cabeça e pescoço: revisão sistemática

SUBJECT: head and neck chewing and posture. PURPOSE: to carry out a systematic review with the purpose of observing if there is a reciprocal interference between the masticatory function and of head and neck posture. CONCLUSION: there is reciprocity between the chewing function and the alterations in the head and neck regions, although there are doubts about which region primarily promotes changes in the other one. Thus, it is important to carry on more studies using more targeted and measurable assessment methods for each region in order to provide more accurate data.

The effect of endurance training on the neovascularization of skeletal musculature

PURPOSE To quantify the capillaries in the skeletal muscular tissue of mice with induced peripheral arterial insufficiency, after endurance training. METHOD It was used Wistar mice in 70 days age range, subjected to the total occlusion of right femoral artery. The animals were divided into two groups: sedentary group (SG; n = 05), subjected to activities in the cage; and trained group (TG; n = 05), subjected to an endurance training in cycle ergometer twice a day 17m/min, by 5 minutes, 5 days per week during 10 weeks. The analysis was realized by the histologic observation of the vastus medialis muscle of injured member. RESULTS The average number of capillaries in the muscular tissue was greater in TG (5,2 +/- 0,83) than in SG (1,6 +/- 1,14) (p < 0,05). CONCLUSION In animals with induction of peripheral arterial insufficiency, the endurance training provides a process of muscular adaptation which is observed by the increase in the number of capillaries of animals subjected to this kind of training.

Avaliação dos efeitos do exercício físico em ratos com diabetes experimental

Objetivo: O estudo teve como objetivo avaliar os efeitos do treinamento fisico aerobico (TFA) na organizacao estrutural e funcional do tecido nervoso periferico em ratos com diabetes experimental. Metodos: 40 ratos machos, Wistar foram separados em 4 grupos: controle sedentario (CS), controle treinado (CT), diabetico sedentario (DS), diabetico treinado (DT). A inducao do diabetes foi realizada nos animais com 60 dias de vida, (STZ intraperitoneal, 60mg/kg). O protocolo de exercicio constou de nado forcado 1h/dia, 5 dias/semana, durante 6 semanas. Semanalmente eram avaliados a glicemia, o peso, a velocidade de conducao nervosa (VCN) do nervo caudal e a amplitude do potencial de acao do nervo caudal. O nervo ciatico foi coletado 24h apos o termino do TFA, obtidos os blocos e realizados os cortes semifinos e ultrafinos. A contagem e analise histomorfometrica dos vasos endoneurais, e da area do nervo de cada animal foi realizada atraves da tecnica de varredura de todos os campos microscopicos (200X) e 75 microvasos endoneurais (3-5/animal, n=5/grupo) foram ultramicrografados aleatoriamente nos campos microscopicos (8.900X) para a realizacao das analises morfometricas. A area e perimetro vascular, a area e perimetro do lumen, a area e perimetro endotelial, a area e perimetro da membrana basal, e a area do pericito foram registradas. A partir dai, determinadas as espessuras da membrana basal e parede do vaso. O numero de nucleos das celulas endoteliais e pericito foram contados. A analise estatistica utilizando a media ± DP, as comparacoes entre os grupos (ANOVA) e multiplas comparacoes post hoc Tukey (p < 0,05), foram realizadas. Resultados: Todas as areas dos microvasos endoneurais sofreram interferencia do TFA (p = 0,016). Nos animais diabeticos, a espessura da membrana basal e a espessura da parede do vaso nao foram diferentes quando comparados com os animais do grupo controle, no entanto, foi observada uma hiperplasia de celulas do pericito nos ratos DT quando comparados com DS (DT 1,2±0,5 vs DS 0,7±0,4; p = 0,038). Conclusao: Todas as areas dos microvasos endoneurais dos animais diabeticos mensuradas sofreram interferencia do TFA, igualmente a atividade celular periendotelial, aumentando o numero de pericitos que envolvem os microvasos endoneurais.