A Home-Based Walking Program Improves Respiratory Endurance in Patients With Acute Myocardial Infarction: A Randomized Controlled Trial

A Home-Based Walking Program Improves Respiratory Endurance in Patients With Acute Myocardial Infarction: A Randomized Controlled Trial

Author Matos-Garcia, Bruna C. Autor UNIFESP Google Scholar
Rocco, Isadora S. Autor UNIFESP Google Scholar
Maiorano, Lara D. Autor UNIFESP Google Scholar
Peixoto, Thatiana C. A. Autor UNIFESP Google Scholar
Moreira, Rita Simone L. Autor UNIFESP Google Scholar
Carvalho, Antonio C. C. Autor UNIFESP Google Scholar
Catai, Aparecida Maria Google Scholar
Arena, Ross Google Scholar
Gomes, Walter J. Autor UNIFESP Google Scholar
Guizilini, Solange Autor UNIFESP Google Scholar
Abstract Background: The purpose of this study was to evaluate respiratory muscle strength and endurance in the inpatient period in patients who recently experienced myocardial infarction (MI) and investigate the effects of a home-based walking program on respiratory strength and endurance in low-risk patients after MI. Methods: Patients were randomized into a usual-care group (UCG) entailing regular care (n = 23) and an intervention group (IG) entailing an outpatient home-based walking program (n = 31). Healthy sex-and age-matched participants served as a control group for respiratory endurance variables. Respiratory muscle strength was evaluated through maximal inspiratory pressure (MIP) and endurance during the inpatient period, at 15 days, and at 60 days after MI. Submaximal functional capacity was determined by a 6-minute walk test (6MWT) at hospital discharge and 60 days after MI. Results: Both groups showed impaired inspiratory muscle strength at hospital discharge. When compared with healthy individuals, after MI, patients had worse respiratory muscle endurance pressure (PTHmax = 73.02 +/- 8.40 vs 44.47 +/- 16.32

P < 0.05) and time (Tlim = 324.1 +/- 12.2 vs 58.7 +/- 93.3

P < 0.05). Only the IG showed a significant improvement in MIP and PTHmax at 15 days and 60 days after MI (P < 0.05). When comparing groups, the IG achieved higher values for MIP, PTHmax, and Tlim 15 and 60 days after MI (P < 0.01). The 60-day assessment revealed that the 6MWT distance and level of physical activity was significantly higher in the IG compared with the UCG. Conclusions: Low-risk patients recently experiencing MI demonstrate impaired MIP and respiratory endurance compared with healthy participants. A home-based walking program improved respiratory endurance and functional capacity.
xmlui.dri2xhtml.METS-1.0.item-coverage New York
Language English
Date 2017
Published in Canadian Journal Of Cardiology. New York, v. 33, n. 6, p. 785-791, 2017.
ISSN 0828-282X (Sherpa/Romeo, impact factor)
Publisher Elsevier Science Inc
Extent 785-791
Origin http://dx.doi.org/10.1016/j.cjca.2016.12.004
Access rights Closed access
Type Article
Web of Science ID WOS:000402461800014
URI https://repositorio.unifesp.br/handle/11600/54380

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