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

Autor: Kawauchi TS; Department of Physiotherapy, LIM-34, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 Room 1150, São Paulo, SP, 01246-930, Brazil., Umeda IIK; Dante Pazzanese Institute of Cardiology São Paulo State, Av. Dr. Dante Pazzanese, 500, São Paulo, SP, Brazil., Braga LM; Department of Physiotherapy, LIM-34, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 Room 1150, São Paulo, SP, 01246-930, Brazil., Mansur AP; Heart Institute - HCFMUSP, Faculdade de Medicina da Universidade de Sao Paulo, Av. Dr. Eneas de Carvalho Aguiar, 44, São Paulo, SP, Brazil., Rossi-Neto JM; Dante Pazzanese Institute of Cardiology São Paulo State, Av. Dr. Dante Pazzanese, 500, São Paulo, SP, Brazil., Guerra de Moraes Rego Sousa A; Dante Pazzanese Institute of Cardiology São Paulo State, Av. Dr. Dante Pazzanese, 500, São Paulo, SP, Brazil., Hirata MH; Dante Pazzanese Institute of Cardiology São Paulo State, Av. Dr. Dante Pazzanese, 500, São Paulo, SP, Brazil., Cahalin LP; Department of Physical Therapy, University of Miami, Coral Gables, FL, USA., Nakagawa NK; Department of Physiotherapy, LIM-34, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 Room 1150, São Paulo, SP, 01246-930, Brazil. naomikondo@uol.com.br.
Jazyk: angličtina
Zdroj: Clinical research in cardiology : official journal of the German Cardiac Society [Clin Res Cardiol] 2017 Sep; Vol. 106 (9), pp. 676-685. Date of Electronic Publication: 2017 Mar 02.
DOI: 10.1007/s00392-017-1089-y
Abstrakt: 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.
Databáze: MEDLINE
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