Determinats of the distamce covered during a six-minute walk test in patients with chronic heart failure / Determinantes da distância percorrida durante teste de caminhada de seis minutos em pacientes com insuficiência cardíaca crônica
Int. j. cardiovasc. sci. (Impr.)
;
32(2): 134-142, mar.-abr. 2019. tab
Article
in English
| LILACS
| ID: biblio-988182
ABSTRACT
Background:
The evaluation of the functional capacity of patients with chronic heart failure (HF) by means of the distance covered in the six-minute walk test (6MWT) has assumed great importance, since the 6MWD is a predictor of mortality and hospitalization in this population, however the determinants of better distance traveled in patients with HF are little explored, especially in the Brazilian population.Objective:
To evaluate the determinants of 6MWD in patients with chronic HF.Methods:
A cross-sectional study was performed with 81 HF patients in outpatient treatment. 6MWD was used as the outcome variable and sociodemographic, clinical, physical-functional and emotional data were submitted to multiple regression analysis using the stepwise method with a significance level of 5%.Results:
Mean age of participants was 56.71 years; the 6MWD showed a bivariate correlation with age (r = -0.27, p = 0.01), maximal inspiratory pressure (r = 0.42, p < 0.01), maximal expiratory pressure (r = 0.36, p < 0.01), handgrip strength (r = 0.38, p < 0.01), Borg scale (-0.22, p = 0.04), Charlson index (r = -0.25, p = 0.02) and modified Medical Research Council (mMRC) dyspnea scale (r = -0.42, p < 0.01). In the multivariate analysis, the variables gender (p = 0.001), age (0.004), forced vital capacity (FVC) (p = 0.016) and mMRC (p = 0.001) simultaneously explained 37% of variance in the 6MWD.Conclusion:
Higher levels of dyspnea on daily life activities, female sex, older age and lower forced vital capacity are determinants of a shorter 6MWD in patients with chronic HF
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Reference Standards
/
Health Status Indicators
/
Walk Test
/
Heart Failure
Type of study:
Etiology study
/
Observational study
/
Prevalence study
/
Prognostic study
/
Risk factors
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
English
Journal:
Int. j. cardiovasc. sci. (Impr.)
Journal subject:
Cardiology
Year:
2019
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Goiás/BR
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