Agreement between heart rate at first ventilatory threshold on treadmill and at 6-min walk test in coronary artery disease patients on β-blockers treatment
Leonardo Calegari, Igor Moreira, Andrei Falkowski, José Basileu Caon Reolão, Marlus Karsten, Luís Fernando Deresz
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영어(ENG)
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https://www.earticle.net/Article/A402466
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초록
영어
The purpose of this study was to verify the accuracy of the agreement between heart rate at the first ventilatory threshold (HRVT1) and heart rate at the end of the 6-min walk test (HR6MWT) in coronary artery disease (CAD) patients on β-blockers treatment. This was a cross-sectional study with stable CAD patients, which performed a cardiopulmonary exercise test (CPET) on a treadmill and a 6-min walk test (6MWT) on nonconsecutive days. The accuracy of agreement between HRVT1 and HR6MWT was evaluated by Bland–Altman analysis and Lin’s concordance correlation coefficient (rc), mean absolute percentage error (MAPE), and standard error of estimate (SEE). Seventeen stable CAD patients on β-blockers treatment (male, 64.7%; age, 61±10 years) were included in data analysis. The Bland–Altman analysis revealed a negative bias of -0.41±6.4 bpm (95% limits of agreements, -13 to 12.2 bpm) between HRVT1 and HR6MWT. There was acceptable agreement between HRVT1 and HR6MWT (rc=0.84; 95% confidence interval, 0.63 to 0.93; study power anal-ysis=0.79). The MAPE of the HR6MWT was 5.1% and SEE was 6.6 bpm. The ratio HRVT1/HRpeak and HR6MWT/HRpeak from CPET were not significantly different (81%±5% vs. 81%±6%, P=0.85); respectively. There was a high correlation between HRVT1 and HR6MWT (r=0.85, P<0.0001). Finally, the results of the present study demonstrate that there was an accept-able agreement between HRVT1 and HR6MWT in CAD patients on β-block-ers treatment and suggest that HR6MWT may be useful to prescribe and control aerobic exercise intensity in cardiac rehabilitation programs.
목차
Abstract INTRODUCTION MATERIALS AND METHODS Participants Experimental procedure Statistical analysis RESULTS DISCUSSION CONFLICT OF INTEREST ACKNOWLEDGMENTS REFERENCES
키워드
Heart rateVentilatory threshold6-Minute walk testCardiac rehabilitationCoronary artery disease
저자
Leonardo Calegari [ Physical Therapy Department, Faculdade Especializada da Área da Saúde do Rio Grande do Sul (FASURGS), Passo Fundo, RS, Brazil ]
Corresponding Author
Igor Moreira [ Physical Therapy Department, Universidade de Passo Fundo (UPF), Passo Fundo, RS, Brazil ]
Andrei Falkowski [ Physical Therapy Department, Universidade de Passo Fundo (UPF), Passo Fundo, RS, Brazil ]
José Basileu Caon Reolão [ Medicine College, Universidade de Passo Fundo (UPF), Passo Fundo, RS, Brazil ]
Marlus Karsten [ Departamento de Fisioterapia, Universidade do Estado de Santa Catarina (UDESC), Florianópolis, Brazil, Graduate Program in Physical Therapy, Universidade do Estado de Santa Catarina (UDESC), Florianópolis, Brazil, Graduate Program in Rehabilitation Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil ]
Luís Fernando Deresz [ Physical Education Department, Health Sciences Institute, Universidade Federal de Juiz de Fora, Governador Valadares, Brazil, Post Graduation Program in Health Applied Sciences, Universidade Federal de Juiz de Fora, Campus Governador Valadares, MG, Brazil, Research Group Ciência, Saúde e Desempenho Físico, Universidade Federal de Juiz de Fora, Campus Governador Valadares, MG, Brazil ]