Introduction The urinary incontinence (UI) is a common pathology among women. In the gestation period, it is even more predominant, affecting between 20% and 67%. Objective To evaluate the relation between modes of delivery and parity on the occurrence of urinary incontinence during pregnancy. Methodology 80 pregnant and postpartum women, treated at the Hospital da Mulher, in Campo Grande, MS, Brazil, were selected during September and October 2011, following the inclusion and exclusion criteria of the research. The evaluation protocol consisted of a questionnaire on the clinical history of the patients, gynecological complications, urogynecologic and obstetric information. Results For independent samples, the comparison between the main values observed for the UI was given by the Mann-Whitney test and correlations between urinary incontinence and other variables were given by the Spearman's rank correlation coefficient. The studied group consisted of 40 (50%) primiparous and 40 (50%) multiparous women. The correlation between the following variables was not significant: parity and UI (r = 0.04, p = 0.7); parity and SUI (r = -0.81, p = 0.5); and parity and urge incontinence (r = 0.14, p = 0.19). In addition, the correlation obtained between vaginal delivery and the presence of urinary incontinence in primiparous (r = 0.08, p = 0.61) and in multiparous (r = -0.05, p = 0.76) was also not significant. The same occurs when cesarean delivery is correlated to urinary incontinence in primiparous (r = -0.08, p = 0.61) and multiparous women (r = -0.10, p = 0.5). Conclusion Parity and mode of delivery were not significantly associated with the occurrence of urinary incontinence during pregnancy.

PURPOSE:To evaluate the influence of aerobic exercise on oxidative stress in mice. METHODS:The study included twenty female mice Mus musculus-Swiss divided into two groups: sedentary control (GA) and exercise (GB), each containing ten animals. All animals underwent an adaptation period of seven days isolated in individual boxes. After this period, the animals in the exercise group (GB) were trained in angled running wheel with circumference of 25 cm assembled on an articulated axle during five minutes for three consecutive days. On the fourth day, they underwent an exercise program of one session lasting 45 minutes. The evaluation of oxidative stress was performed by determining the levels of malondialhyde derived of lipid peroxidation by the TBA method. The samples were read in a spectrophotometer at 535 nm. RESULTS: No significant difference was observed in the intergroup comparison of MDA levels in the tissues evaluated. A significant difference was observed in the intragroup comparison of MDA levels in the control group (p = 0.0201).The Tukeys' post hoc test indicated significantly lower values of MDA in the smooth muscle in relation to plasma. In the analysis of variance in the exercise group, a significant difference between tissues (p = 0.0009), with significantly lower values in the smooth muscle in relation to plasma (p<0.001) and higher in striated muscle in relation to smooth muscle (p<0.05) was observed. CONCLUSION: There was no change in the analysis of oxidative stress in mice which were undergone a single session of aerobic exercise. Key words: Oxidative Stress. Exercise. Lipids. Mice. RESUMO OBJETIVO:Avaliar a influência do exercício físico aeróbico sobre o estresse oxidativo em camundongos. MÉTODOS: Participaram do estudo 20 camundongos (Swiss), distribuídos em dois grupos: controle-sedentário (GA) e exercício (GB) cada um contendo dez animais. Todos os animais passaram por um período de adaptação de sete dias. Após os animais do grupo (GB) receberam treinamento em roda giratória angulada montada sobre eixo articulado por cinco minutos durante três dias consecutivos. No quarto dia foram submetidos à única sessão de exercício por 45 minutos. A avaliação do estresse oxidativo foi realizada por meio dos níveis de malondiadeído pelo método do TBA. As amostras foram lidas em espectrofotômetro a 535nm. RESULTADOS: Não houve diferença significativa na comparação intergrupos nos tecidos avaliados. Diferença significativa foi observada na comparação intragrupo para o GA (p=0,0201). O post hoc test de Tukey apontou valores significantemente inferiores no músculo liso em relação ao plasma. A análise de variância do GB apontou diferença significativa entre os tecidos (p=0,0009), com valores menores no músculo liso em relação ao plasma (p<0,001), e maiores no músculo estriado em relação ao músculo liso (p<0,05). CONCLUSÃO: Não houve alteração nas análises de malondialdeído tecidual entre os grupos avaliados. Descritores: Estresse Oxidativo. Exercício. Lipídeos. Camundongos. Evaluation of oxidative s...