Evidence map›Paper›PMID 25714888›Full record

ArticleBrazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica2015

Intensity and physiological responses to the 6-minute walk test in middle-aged and older adults: a comparison with cardiopulmonary exercise testing.

E F Sperandio, R L Arantes, A C Matheus, R P Silva, V T Lauria, M Romiti, A R T Gagliardi, V Z Dourado

Open access · goldAbstract readComparative Study
In one paragraph

Article in Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
7.8field-weighted citation impact, top 4% of its field
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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 67 citations in OpenAlex.

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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

8 authors at 1 institution in 1 country.

E F SperandioDepartamento de Ciências do Movimento Humano, Laboratório de Epidemiologia e Movimento Humano (EPIMOV), Universidade Federal de São Paulo, Santos, SP, Brasil.
R L ArantesInstituto de Medicina Cardiovascular Angiocorpore, Santos, SP, Brasil.
A C MatheusDepartamento de Ciências do Movimento Humano, Laboratório de Epidemiologia e Movimento Humano (EPIMOV), Universidade Federal de São Paulo, Santos, SP, Brasil.
R P SilvaDepartamento de Ciências do Movimento Humano, Laboratório de Epidemiologia e Movimento Humano (EPIMOV), Universidade Federal de São Paulo, Santos, SP, Brasil.
V T LauriaDepartamento de Ciências do Movimento Humano, Laboratório de Epidemiologia e Movimento Humano (EPIMOV), Universidade Federal de São Paulo, Santos, SP, Brasil.
M RomitiInstituto de Medicina Cardiovascular Angiocorpore, Santos, SP, Brasil.
A R T GagliardiInstituto de Medicina Cardiovascular Angiocorpore, Santos, SP, Brasil.
V Z DouradoDepartamento de Ciências do Movimento Humano, Laboratório de Epidemiologia e Movimento Humano (EPIMOV), Universidade Federal de São Paulo, Santos, SP, Brasil.
Universidade Federal de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The 6-minute walk test (6MWT) is a simple field test that is widely used in clinical settings to assess functional exercise capacity. However, studies with healthy subjects are scarce. We hypothesized that the 6MWT might be useful to assess exercise capacity in healthy subjects. The purpose of this study was to evaluate 6MWT intensity in middle-aged and older adults, as well as to develop a simple equation to predict oxygen uptake ( V ˙ O 2 ) from the 6-min walk distance (6MWD). Eighty-six participants, 40 men and 46 women, 40-74 years of age and with a mean body mass index of 28±6 kg/m2, performed the 6MWT according to American Thoracic Society guidelines. Physiological responses were evaluated during the 6MWT using a K4b2 Cosmed telemetry gas analyzer. On a different occasion, the subjects performed ramp protocol cardiopulmonary exercise testing (CPET) on a treadmill. Peak V ˙ O 2 in the 6MWT corresponded to 78±13% of the peak V ˙ O 2 during CPET, and the maximum heart rate corresponded to 80±23% of that obtained in CPET. Peak V ˙ O 2 in CPET was adequately predicted by the 6MWD by a linear regression equation: V ˙ O 2 mL·min-1·kg-1 = -2.863 + (0.0563×6MWDm) (R2=0.76). The 6MWT represents a moderate-to-high intensity activity in middle-aged and older adults and proved to be useful for predicting cardiorespiratory fitness in the present study. Our results suggest that the 6MWT may also be useful in asymptomatic individuals, and its use in walk-based conditioning programs should be encouraged.

Indexed as

Exercise TestHealthy VolunteersAdultAgedCarbon DioxideCross-Sectional StudiesFemaleHumansMaleMiddle AgedOxygen ConsumptionSpirometryTelemetryTime FactorsWalkingCarbon Dioxide

Identifiers

PMID25714888
PMCPMC4418366
OpenAlexW2057172523

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

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.