Heart Rate Recovery in the First Minute at the Six-Minute Walk Test in Patients with Heart Failure
| Autor: | Milena Derossi, Evandro Tinoco Mesquita, Sabrina Lindemberg, Antonio Claudio Lucas da Nóbrega, Sabrina Bernardez, Sergio Chermont, Wolney de Andrade Martins, Luana Marchese, Mônica Quintão, Sergio Guilhon |
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| Rok vydání: | 2014 |
| Předmět: |
Male
SIX MINUTE WALK medicine.medical_specialty Time Factors Adrenergic beta-Antagonists Heart rate Beat (acoustics) Walking Reference Values Internal medicine Humans Medicine In patient Exercise Aged Heart Failure Analysis of Variance Exercise Tolerance business.industry Treadmill Tests Walk distance Original Articles Middle Aged Prognosis medicine.disease Cross-Sectional Studies Case-Control Studies Heart failure Exercise Test Cardiology Female Analysis of variance Cardiology and Cardiovascular Medicine business |
| Zdroj: | Arquivos brasileiros de cardiologia |
| ISSN: | 0066-782X |
| Popis: | Background: Heart rate recovery at one minute of rest (HRR1) is a predictor of mortality in heart failure (HF), but its prognosis has not been assessed at six-minute walk test (6MWT) in these patients. Objective: This study aimed to determine the HRR1 at 6MWT in patients with HF and its correlation with six-minute walk distance (6MWD). Methods: Cross-sectional, controlled protocol with 161 individuals, 126 patients with stable systolic HF, allocated into 2 groups (G1 and G2) receiving or not β-blocker and 35 volunteers in control group (G3) had HRR1 recorded at the 6MWT. Results: HRR1 and 6MWD were significantly different in the 3 groups. Mean values of HRR1 and 6MWD were: HRR1 = 12 ± 14 beat/min G1; 18 ± 16 beat/min G2 and 21 ± 13 beat/min G3; 6MWD = 423 ± 102 m G1; 396 ± 101m G2 and 484 ± 96 m G3 (p < 0.05). Results showed a correlation between HRR1 and 6MWD in G1(r = 0.3; p = 0.04) and in G3(r = 0.4; p= 0.03), but not in G2 (r= 0.12; p= 0.48). Conclusion: HRR1 response was attenuated in patients using βB and showed correlation with 6MWD, reflecting better exercise tolerance. HRR1 after 6MWT seems to represent an alternative when treadmill tests could not be tolerated. |
| Databáze: | OpenAIRE |
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