Evidence map›Paper›PMID 34574979›Full record

ArticleHealthcare (Basel, Switzerland)2021

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

Alexandre D Martins, João Paulo Brito, Rafael Oliveira, Tiago Costa, Fátima Ramalho, Rita Santos-Rocha, Nuno Pimenta

Abstract read
In one paragraph

Article in Healthcare (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Trial
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Alexandre D MartinsInstitute of Santarém, Sports Science School of Rio Maior-Polytechnic, 2140-413 Rio Maior, Portugal.ORCID 0000-0003-1524-5601
João Paulo BritoInstitute of Santarém, Sports Science School of Rio Maior-Polytechnic, 2140-413 Rio Maior, Portugal.ORCID 0000-0003-4357-4269
Rafael OliveiraInstitute of Santarém, Sports Science School of Rio Maior-Polytechnic, 2140-413 Rio Maior, Portugal.ORCID 0000-0001-6671-6229
Tiago CostaInstitute of Santarém, Sports Science School of Rio Maior-Polytechnic, 2140-413 Rio Maior, Portugal.
Fátima RamalhoInstitute of Santarém, Sports Science School of Rio Maior-Polytechnic, 2140-413 Rio Maior, Portugal.
Rita Santos-RochaInstitute of Santarém, Sports Science School of Rio Maior-Polytechnic, 2140-413 Rio Maior, Portugal.
Nuno PimentaInstitute of Santarém, Sports Science School of Rio Maior-Polytechnic, 2140-413 Rio Maior, Portugal.

Funding

Fundação para a Ciência e a Tecnologia UIDP/04748/2020.
6 · The paper itself

Abstract

backgroundBreast 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.

methodsThis 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".

resultsA multiple linear regression analysis showed that from the heart rate variability frequency domain, high frequency explained 21% (R

conclusionThe 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.

Indexed as

breast cancerexercisefitnessheart rate variabilityparasympathetic nervous system

Identifiers

PMID34574979
PMCPMC8469708

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.