Intensidade de exercício durante o teste de caminhada de 6 minutos em pacientes com doença arterial periférica

Translated title of the contribution: Exercise intensity during 6-minute walk test in patients with peripheral artery disease

Breno Quintella Farah, Raphael Mendes Ritti-Dias, Polly Montgomery, Gabriel Grizzo Cucato, Andrew W. Gardner

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Background: Non-supervised ground walking has been recommended for patients with symptomatic peripheral artery disease (PAD). However, the magnitude of the effort required by this activity and the characteristics of patients whose ground walking is more intense are unclear. Objectives: To determine whether ground walking exceeds the ventilatory threshold (VT), a recognized marker of exercise intensity, in patients with symptomatic PAD. Methods: Seventy patients (61.4% male and aged 40 to 85 years old) with symptomatic PAD were recruited. Patients performed a graded treadmill test for VT determination. Then, they were submitted to a 6-minute walk test so the achievement of VT during ground ambulation could be identified. Multiple logistic regression was conducted to identify predictors of VT achievement during the 6-minute walk test. The significance level was set at p < 0.05 for all analyses. Results: Sixty percent of patients achieved VT during the 6-minute walk test. Women (OR = 0.18 and 95%CI = 0.05 to 0.64) and patients with higher cardiorespiratory fitness (OR = 0.56 and 95%CI = 0.40 to 0.77) were less likely to achieve VT during ground walking compared to men and patients with lower cardiorespiratory fitness, respectively. Conclusion: More than half of patients with symptomatic PAD achieved VT during the 6-minute walk test. Women and patients with higher cardiorespiratory fitness are less likely to achieve VT during the 6-minute walk test, which indicates that ground walking may be more intense for this group. This should be considered when prescribing ground walking exercise for these patients. (Arq Bras Cardiol. 2020; 114(3):486-492).

Translated title of the contributionExercise intensity during 6-minute walk test in patients with peripheral artery disease
Original languagePortuguese
Pages (from-to)486-492
Number of pages7
JournalArquivos Brasileiros de Cardiologia
Volume114
Issue number3
DOIs
StatePublished - Mar 2020

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

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