No abstract

Human papillomavirus (HPV) infection is recognized as the most common sexually transmitted disease in the world, and there is a consensus on its role in the etiology of preneoplastic epithelial changes in the cervix. Through the process of lipid peroxidation, oxidative stress is found in the course of premalignant and malignant changes. Moreover, the level of physical activity can exert an influence on markers of oxidative stress, lowering the serum levels of these markers. Objective. To determine the relationship between levels of malondialdehyde (MDA) and the level of physical activity in women with squamous intraepithelial lesion (SIL) of the cervix. Methods. A cross-sectional study was conducted with 46 women participating in a cervical cancer control program. The women had been submitted to the cytopathological exam and were divided into two groups: 18 with SIL and 28 controls. MDA concentrations were determined, and the International Physical Activity Questionnaire (IPAQ) was administered on the same day as the gynecological appointment (prior to the Papanicolaou test). Results. The SIL group had higher MDA levels than the control group (mean: 47.63 ± 9.57 vs. 9.32 ± 4.79, respectively) and a lower IPAQ score (median: 713.5 vs. 1875, respectively). A weak correlation was found between the MDA level and IPAQ score (r2 = −0.34, p = 0.018). Conclusion. The women with SIL had higher levels of oxidative stress and were less physically active than the women in the control group. These findings suggest that physical exercise exerts an influence on markers of oxidative stress in the development of intraepithelial squamous lesions.

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Introduction: Gastrointestinal cancer is the most prevalent form of cancer worldwide. Surgical treatment interferes with functioning and increases the length of hospital stay. However, studies have shown that early mobilization reduces the length of hospital stay. Objectives: Determine the cardiovascular safety and intensity of an adapted protocol for early mobilization in patients following surgery for the treatment of gastrointestinal cancer. Methods: An observational, cross-sectional study was conducted with 24 individuals: 15 in the case group (cancer patients in the post-operative period) and nine in the control group (hospitalized patients without cancer). All participants were submitted to a standardized early mobilization physiotherapeutic protocol. A portable heart rate monitor and accelerometer were used to obtain data on heart rate variability (HRV) and the intensity of physical activity (IPA) before and after the intervention. Results: No statistically significant differences in energy expenditure or IPA percentages were found between groups. Moreover, no significant difference in HRV occurred in the case group, whereas differences in RR, HR and pNN50 variables were found in the control group. Conclusion: Early mobilization for patients following surgery for the treatment of gastrointestinal cancer can be performed without increasing HRV and with energy expenditure and IPA similar to those found in patients without cancer.

Background: Gastrointestinal cancer is the most prevalent form of cancer worldwide. Surgical treatment interferes with functionality and increases the length of hospital stay. However, studies have shown that early mobilization reduces the length of hospital stay. Aim: To determine the cardiovascular safety and intensity of an adapted protocol for early mobilization in patients following surgery for the treatment of gastrointestinal cancer. Methods: An observational, cross-sectional study was conducted with 24 individuals: 15 in the case group (cancer patients in the post-operative period) and nine in the control group (hospitalized patients without cancer). All participants were submitted to a standardized early mobilization physiotherapeutic protocol. A portable heart rate monitor and accelerometer were used to obtain data on heart rate variability (HRV), analyzing the variables 'interval between consecutive beats' (RR), 'mean heart rate' (HR), 'standard deviation from mean of all normal RR intervals' (SDNN), 'square root of mean of square of differences between consecutive RR intervals' (RMSSD), 'number of RR intervals' (NN50) and 'percentage of adjacent RR intervals with difference in duration greater than 50 ms' (pNN50), and the intensity of physical activity (IPA), analyzing metabolic equivalents (METS), before and after the intervention. Data analysis involved the Student's t-test for the comparison of data with parametric distribution and the Mann-Whitney U test for variables with non-parametric distribution. Results: No statistically significant differences in energy expenditure or IPA percentages were found between groups. Moreover, no significant difference in HRV occurred in the case group, whereas differences in RR, HR and pNN50 variables were found in the control group. Conclusions: Early mobilization for patients following surgery for the treatment of gastrointestinal cancer can be performed without increasing HRV and with energy expenditure and IPA similar to those found in patients without cancer.