Evidence map›Paper›PMID 34495225›Full record

ArticleArquivos brasileiros de cardiologia2021

Physiological Responses to Maximal and Submaximal Walking in Patients with Symptomatic Peripheral Artery Disease.

Marcel Chehuen, Aluisio Andrade-Lima, Natan Silva Junior, Roberto Miyasato, Rodrigo W Alves de Souza, Anthony Leicht, Patricia Chakur Brum, Edilamar M Oliveira, Nelson Wolosker, Claudia Lucia de Moraes Forjaz

Abstract read
In one paragraph

Article in Arquivos brasileiros de cardiologia, 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

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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.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Marcel ChehuenUniversidade de São Paulo - Escola de Educação Física e Esportes, São Paulo, SP - Brasil.ORCID 0000-0002-9857-8761
Aluisio Andrade-LimaUniversidade Federal de Sergipe, Aracaju, SE - Brasil.ORCID 0000-0002-8559-7752
Natan Silva JuniorUniversidade de São Paulo - Escola de Educação Física e Esportes, São Paulo, SP - Brasil.
Roberto MiyasatoUniversidade de São Paulo - Escola de Educação Física e Esportes, São Paulo, SP - Brasil.
Rodrigo W Alves de SouzaUniversidade de São Paulo - Escola de Educação Física e Esportes, São Paulo, SP - Brasil.
Anthony LeichtJames Cook University, Townsville, Queensland - Austrália.
Patricia Chakur BrumUniversidade de São Paulo - Escola de Educação Física e Esportes, São Paulo, SP - Brasil.
Edilamar M OliveiraUniversidade de São Paulo - Escola de Educação Física e Esportes, São Paulo, SP - Brasil.ORCID 0000-0002-7101-312X
Nelson WoloskerHospital Israelita Albert Einstein, São Paulo, SP - Brasil.ORCID 0000-0003-1991-3507
Claudia Lucia de Moraes ForjazUniversidade de São Paulo - Escola de Educação Física e Esportes, São Paulo, SP - Brasil.ORCID 0000-0001-7584-4265

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough maximal and submaximal walking are recommended for patients with peripheral artery disease (PAD), performing these exercises may induce different physiological responses.

objectivesTo compare the acute effects of maximal and submaximal walking on post-exercise cardiovascular function, regulation, and associated pathophysiological processes in patients with symptomatic PAD.

methodsThirty male patients underwent 2 sessions: maximal walking (Gardner's protocol) and submaximal walking (15 bouts of 2 minutes of walking separated by 2 minutes of upright rest). In each session, blood pressure (BP), heart rate (HR), cardiac autonomic modulation (HR variability), forearm and calf blood flows (BF), vasodilatory capacity (reactive hyperemia), nitric oxide (NO), oxidative stress (lipid peroxidation), and inflammation (four markers) were measured pre- and post-walking. ANOVAs were employed, and p < 0.05 was considered significant.

resultsSystolic and mean BP decreased after the submaximal session, but they increased after the maximal session (interactions, p < 0.001 for both). Diastolic BP did not change after the submaximal session (p > 0.05), and it increased after maximal walking (interaction, p < 0.001). HR, sympathovagal balance, and BF increased similarly after both sessions (moment, p < 0.001, p = 0.04, and p < 0.001, respectively), while vasodilatory capacity, NO, and oxidative stress remained unchanged (p > 0.05). Vascular and intercellular adhesion molecules increased similarly after both maximal and submaximal walking sessions (moment, p = 0.001).

conclusionsIn patients with symptomatic PAD, submaximal, but not maximal walking reduced post-exercise BP, while maximal walking maintained elevated cardiac overload during the recovery period. On the other hand, maximal and submaximal walking sessions similarly increased post-exercise HR, cardiac sympathovagal balance, and inflammation, while they did not change post-exercise NO bioavailability and oxidative stress.

Indexed as

Peripheral Arterial DiseaseWalkingBlood PressureExercise TestHeart RateHumansIntermittent ClaudicationMale

Identifiers

PMID34495225
PMCPMC8395785

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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.