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This longitudinal study aimed to analyze the influence of physical activity (PA) on the relationship between body adiposity and cardiac autonomic modulation (CAM) in women survivors of breast cancer. We collected body adiposity through electrical bioimpedance considering body fat percentage (BFP), CAM through heart rate variability (considering RMSSD, SDNN, PNN50, LF (m2), HF (m2), SD1 indexes and SD1/SD2 ratio) and PA through a questionnaire in 64 participants (58.0 ± 9.6 years), recruited through the local association of support for breast cancer and by direct indications from city mastologists. After insertion of PA into the multivariate statistical model, significant attenuation was observed in the relationship between body adiposity and CAM for the indices: SDNN (β = -0.94; 95 percent CI: -1.93; 0.04; p  = .060) and SD1/SD2 (β = -0.01;95 percent CI = -0.02; 0.001; p  = .065). In conclusion, it was observed that PA was able to mitigate the relationships between BFP and CAM (considering SDNN index and SD1/SD2 ratio) in breast cancer survivors.

Purpose: This study aimed to analyze the longitudinal influence of sitting time (ST) on cardiac autonomic modulation (CAM) and resting heart rate (RHR) in a 12-month cohort of 67 breast cancer survivors., Methods: CAM was assessed by heart rate variability with heart monitor which also assessed RHR, and ST was self-reported. The relationship between the variables was analyzed by the Pearson correlation and its magnitude by linear regression., Results: At baseline, no associations were found between ST and CAM or RHR. In the delta analyses, a decrease in RMSSD, SD1, and HF(ms 2 ) was associated with sitting time. At 12-month follow-up, there was an increase in the ST and a decrease in RHR. ST was negatively related with CAM (RMSSD, PNN50, and SD1), but no association was observed between ST and RHR., Conclusion: The increase in ST was associated with worsening of CAM after 12-month follow-up. Promoting reduction in ST will be an important strategy against cardiovascular impairment in breast cancer survivors., (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)

Objectives: Treatments for breast cancer (BC) can lead to physical and mental impairments which may affect quality of life (QoL). Physical activity (PA) is highly recommended for this population due to its protective effect against BC relapse and its ability to reduce the health impact of treatment. However, it is not clear whether the different domains of PA are associated with better QoL of BC survivors. The current study aimed to verify the relationship between different PA domains with QoL of BC survivors., Methods: The sample consisted of 128 women BC survivors, with a mean age of 58.2 ± 9.7 years. QoL was assessed using the Short-Form Health Survey questionnaire (SF-36) and PA was verified through the Baecke questionnaire, in domains of occupation, sports practice, and leisure time/commuting. The relationship between QoL and different PA domains was verified by linear regression, adjusted by age, marital status, and socioeconomic condition., Results: Occupational PA was negatively related to physical limitations [β= -15.36 (-29.04 to -1.68] and body pain [β=-6.61 (-14.53 to 1.31) marginal association]. Sports practice was positively related to functional capacity [β= 4.24 (0.60 to 7.88)]. Leisure time/commuting PA was positively related to functional capacity [β = 7.17 (3.09 to 11.26)], vitality [β = 4.30 (0.39 to 8.22)], social aspects [β= 5.47 (0.80 to 10.15)], and mental health [β = 4.08 (0.40 to 7.75)]., Conclusions: Sports practice and leisure time/commuting PA were positively related to QoL in BC survivors, while occupational PA was negatively related to QoL, independently of age, marital status, and socioeconomic condition., Competing Interests: Financial disclosure/conflicts of interest: None reported., (Copyright © 2021 by The North American Menopause Society.)

Background Physical activity (PA) has shown benefits in the mental health of breast cancer (BC) survivors. However, it is unclear if different domains of PA are related to the emotional well-being of this population. The objective of this study was to verify the relationship between different domains of PA [occupational, exercise/sport participation and leisure time/commuting] with symptoms of anxiety and depression in BC survivors. Methods It is a cross-sectional study, composed of 128 women breast cancer survivor, in which the socioeconomic class was evaluated through the questionnaire of the Brazilian Association of Research Companies (ABEP), PA level was evaluated through the Baecke questionnaire, and, symptoms of anxiety and depression were evaluated through the Hospital Anxiety and Depression Scale (HADS). Results It was verified that occupational PA related to anxiety (B = 1.44 [95% CI: 0.11; 2.76]) and leisure time/commuting PA was negatively related to depression (B=-0.99 [95% CI: -1.64;-0.34]), even after adjustment of analysis by age, marital status, and socioeconomic status. There was no correlation between exercise/sport participation with scores of anxiety and depression in BC survivors. Physical activity at leisure time/commuting was negatively related with depression in BC survivors with mastectomy (B=-1.20 [95% CI:-1.92; -0.47). Limitations The difficulty of recruiting the studied population and the absence of subsidy for participation in the study are factors to be considerate. Conclusions Occupational PA may not to be indicated in the management of emotional disorders in BC survivors; however, leisure time/commuting may be recommended to contribute to the mental well-being of this population., Competing Interests: Declaration of Competing Interest None., (Copyright © 2020 Elsevier B.V. All rights reserved.)

Objective: The aim of this study was to verify the reproducibility of an oscillometric device in the measurement of resting heart rate (RHR) in breast cancer survivors., Methods: This study included 85 breast cancer survivors with a mean age of 58.87±10.03 years. For the RHR evaluation, the equipment used was the Omron HEM 742, electronic and digital arm device, for measurement of blood pressure and heart rate (HR), with automatic cuff inflation and deflation. At the same time as the oscillometric measurement, HR was measured by the HR monitor Polar RS800 CX, which has been validated previously for HR uptake. The HR value obtained by the cardiofrequency meter was registered at the same time that the Omron device measured blood pressure and HR values., Results: It was observed that the RHR values were very close in both devices and that the correlation values and intraclass correlation coefficient were high. These results were replicated when the female breast cancer survivors were stratified by age group. The agreement values presented by the Bland-Altman analysis showed good values; both for the entire sample and stratified by age, few cases were outside beyond 95% confidence interval range., Conclusion: The present study showed that the oscillometric device used presented good values of reproducibility in the detection of RHR values in breast cancer survivors compared with a cardiac monitor.