Is there any benefit using low-intensity inspiratory and peripheral muscle training in heart failure? A randomized clinical trial

Tatiana Satie Kawauchi, Iracema Ioco Kikuchi Umeda, Lays Magalhães Braga, Antonio De Pádua Mansur, João Manoel Rossi-Neto, Amanda Guerra de Moraes Rego Sousa, Mário Hiroyuki Hirata, Lawrence P Cahalin, Naomi Kondo Nakagawa

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Background: Inspiratory and peripheral muscle training improves muscle strength, exercise tolerance, and quality of life in patients with chronic heart failure (HF). However, studies investigating different workloads for these exercise modalities are still lacking. Objective: To examine the effects of low and moderate intensities on muscle strength, functional capacity, and quality of life. Design: A randomized controlled trial. Methods: Thirty-five patients with stable HF (aged >18 years, NYHA II/III, LVEF <40%) were randomized to: non-exercise control group (n = 9), low-intensity training group (LIPRT, n = 13, 15% maximal inspiratory workload, and 0.5 kg of peripheral muscle workload) or moderate-intensity training group (MIPRT, n = 13, 30% maximal inspiratory workload and 50% of one maximum repetition of peripheral muscle workload). The outcomes were: respiratory and peripheral muscle strength, pulmonary function, exercise tolerance by the 6-minute walk test, symptoms based on the NYHA functional class, and quality of life using the Minnesota Living with Heart Failure Questionnaire. Results: All groups showed similar quality-of-life improvements. Low and moderate intensities training programs improved inspiratory muscle strength, peripheral muscle strength, and walking distance. However, only moderate intensity improved expiratory muscle strength and NYHA functional class in HF patients. Conclusions: The low-intensity inspiratory and peripheral resistance muscle training improved inspiratory and peripheral muscle strength and walking distance, demonstrating that LIPRT is an efficient rehabilitation method for debilitated HF patients. In addition, the moderate-intensity resistance training also improved expiratory muscle strength and NYHA functional class in HF patients.

Original languageEnglish (US)
Pages (from-to)1-10
Number of pages10
JournalClinical Research in Cardiology
DOIs
StateAccepted/In press - Mar 2 2017

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Keywords

  • Cardiac rehabilitation
  • Functional capacity
  • Heart failure
  • Resistance exercise
  • Respiratory muscles

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Kawauchi, T. S., Umeda, I. I. K., Braga, L. M., Mansur, A. D. P., Rossi-Neto, J. M., Guerra de Moraes Rego Sousa, A., Hirata, M. H., Cahalin, L. P., & Nakagawa, N. K. (Accepted/In press). Is there any benefit using low-intensity inspiratory and peripheral muscle training in heart failure? A randomized clinical trial. Clinical Research in Cardiology, 1-10. https://doi.org/10.1007/s00392-017-1089-y