Relationship between Heart Rate Variability and Functional Fitness in Breast Cancer Survivors: A Cross-Sectional Study

Background: Breast cancer is the most common malignancy among women worldwide. The treatments may also cause neuromuscular and skeletal disorders; therefore, the aim of this study was to verify the existence of a relationship between heart rate variability and different functional fitness parameters...

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Main Authors: Alexandre D. Martins, João Paulo Brito, Rafael Oliveira, Tiago Costa, Fátima Ramalho, Rita Santos-Rocha, Nuno Pimenta
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Healthcare
Subjects:
Online Access:https://www.mdpi.com/2227-9032/9/9/1205
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author Alexandre D. Martins
João Paulo Brito
Rafael Oliveira
Tiago Costa
Fátima Ramalho
Rita Santos-Rocha
Nuno Pimenta
author_facet Alexandre D. Martins
João Paulo Brito
Rafael Oliveira
Tiago Costa
Fátima Ramalho
Rita Santos-Rocha
Nuno Pimenta
author_sort Alexandre D. Martins
collection DOAJ
description Background: Breast cancer is the most common malignancy among women worldwide. The treatments may also cause neuromuscular and skeletal disorders; therefore, the aim of this study was to verify the existence of a relationship between heart rate variability and different functional fitness parameters in women survivors of breast cancer. Methods: This cross-sectional study included 25 women survivors of breast cancer, with a mean ± SD age, height, and body mass of 50.8 ± 8.8 years, 1.6 ± 0.7 m, and 67.1 ± 12.3 kg, respectively. Patients underwent measurements of heart rate variability with time and frequency domain analyses, as well as a “30 s chair-stand test”, “6 min walking test”, “timed up and go test”, and “ball throwing test”. Results: A multiple linear regression analysis showed that from the heart rate variability frequency domain, high frequency explained 21% (R<sup>2</sup> = 0.21) of the “30 s chair-stand test” performance. Conclusion: The findings of this study highlight high frequency as a predictor of “30 s chair-stand test” performance, regardless of age and time after diagnosis, suggesting its usefulness as a clinical indicator of functionality in breast cancer survivors. This study presents a straightforward and non-invasive methodology predicting functional fitness in women breast cancer survivors potentially applicable to clinical practice.
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spelling doaj.art-228b30f8a1ae4bd498d79660ae3fe5072023-11-22T13:18:32ZengMDPI AGHealthcare2227-90322021-09-0199120510.3390/healthcare9091205Relationship between Heart Rate Variability and Functional Fitness in Breast Cancer Survivors: A Cross-Sectional StudyAlexandre D. Martins0João Paulo Brito1Rafael Oliveira2Tiago Costa3Fátima Ramalho4Rita Santos-Rocha5Nuno Pimenta6Institute of Santarém, Sports Science School of Rio Maior–Polytechnic, 2140-413 Rio Maior, PortugalInstitute of Santarém, Sports Science School of Rio Maior–Polytechnic, 2140-413 Rio Maior, PortugalInstitute of Santarém, Sports Science School of Rio Maior–Polytechnic, 2140-413 Rio Maior, PortugalInstitute of Santarém, Sports Science School of Rio Maior–Polytechnic, 2140-413 Rio Maior, PortugalInstitute of Santarém, Sports Science School of Rio Maior–Polytechnic, 2140-413 Rio Maior, PortugalInstitute of Santarém, Sports Science School of Rio Maior–Polytechnic, 2140-413 Rio Maior, PortugalInstitute of Santarém, Sports Science School of Rio Maior–Polytechnic, 2140-413 Rio Maior, PortugalBackground: Breast cancer is the most common malignancy among women worldwide. The treatments may also cause neuromuscular and skeletal disorders; therefore, the aim of this study was to verify the existence of a relationship between heart rate variability and different functional fitness parameters in women survivors of breast cancer. Methods: This cross-sectional study included 25 women survivors of breast cancer, with a mean ± SD age, height, and body mass of 50.8 ± 8.8 years, 1.6 ± 0.7 m, and 67.1 ± 12.3 kg, respectively. Patients underwent measurements of heart rate variability with time and frequency domain analyses, as well as a “30 s chair-stand test”, “6 min walking test”, “timed up and go test”, and “ball throwing test”. Results: A multiple linear regression analysis showed that from the heart rate variability frequency domain, high frequency explained 21% (R<sup>2</sup> = 0.21) of the “30 s chair-stand test” performance. Conclusion: The findings of this study highlight high frequency as a predictor of “30 s chair-stand test” performance, regardless of age and time after diagnosis, suggesting its usefulness as a clinical indicator of functionality in breast cancer survivors. This study presents a straightforward and non-invasive methodology predicting functional fitness in women breast cancer survivors potentially applicable to clinical practice.https://www.mdpi.com/2227-9032/9/9/1205breast cancerheart rate variabilityfitnessexerciseparasympathetic nervous system
spellingShingle Alexandre D. Martins
João Paulo Brito
Rafael Oliveira
Tiago Costa
Fátima Ramalho
Rita Santos-Rocha
Nuno Pimenta
Relationship between Heart Rate Variability and Functional Fitness in Breast Cancer Survivors: A Cross-Sectional Study
Healthcare
breast cancer
heart rate variability
fitness
exercise
parasympathetic nervous system
title Relationship between Heart Rate Variability and Functional Fitness in Breast Cancer Survivors: A Cross-Sectional Study
title_full Relationship between Heart Rate Variability and Functional Fitness in Breast Cancer Survivors: A Cross-Sectional Study
title_fullStr Relationship between Heart Rate Variability and Functional Fitness in Breast Cancer Survivors: A Cross-Sectional Study
title_full_unstemmed Relationship between Heart Rate Variability and Functional Fitness in Breast Cancer Survivors: A Cross-Sectional Study
title_short Relationship between Heart Rate Variability and Functional Fitness in Breast Cancer Survivors: A Cross-Sectional Study
title_sort relationship between heart rate variability and functional fitness in breast cancer survivors a cross sectional study
topic breast cancer
heart rate variability
fitness
exercise
parasympathetic nervous system
url https://www.mdpi.com/2227-9032/9/9/1205
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