Int J Sports Med 2024; 45(13): 994-1004
DOI: 10.1055/a-2348-2684
Clinical Sciences

Exercise Improves Respiratory Function, Body Fluid and Nitric Oxide in Hemodialysis Patients

Rodrigo Vanerson Passos Neves
1   Graduate Programm in Physical Education, Catholic University of Brasilia, Taguatinga, Brazil
,
Hugo Luca Corrêa
2   Physical Education, Catholic University of Brasilia, Taguatinga, Brazil
,
Andrea Lucena Reis
2   Physical Education, Catholic University of Brasilia, Taguatinga, Brazil
,
Rosangela Vieira Andrade
3   Graduate Program in Biotechnology, Catholic University of Brasilia, Taguatinga, Brazil
,
Thais Branquinho Araújo
2   Physical Education, Catholic University of Brasilia, Taguatinga, Brazil
,
Rafael Lavarini Santos
4   Graduate Program in Genomic Science and Biotechnology, Catholic University of Brasilia, Taguatinga, Brazil
,
Fernanda Félix Santos Oliveira
1   Graduate Programm in Physical Education, Catholic University of Brasilia, Taguatinga, Brazil
,
Guilherme Eduardo Barbosa Moraes Araújo
1   Graduate Programm in Physical Education, Catholic University of Brasilia, Taguatinga, Brazil
,
André Victor Gulyas Marra
1   Graduate Programm in Physical Education, Catholic University of Brasilia, Taguatinga, Brazil
,
Thaís Amaral Baracho
1   Graduate Programm in Physical Education, Catholic University of Brasilia, Taguatinga, Brazil
,
Taynah Oliveira Martins
5   Graduate Program in Physical Education, Catholic University of Brasilia, Riacho Fundo I, Brazil
,
Jessica Mycaelle da Silva Barbosa
6   Nutrition, Catholic University of Brasilia, Taguatinga, Brazil
,
Mariana Neiva Garcia
1   Graduate Programm in Physical Education, Catholic University of Brasilia, Taguatinga, Brazil
,
Nicole Messenberg Guimarães Miller
1   Graduate Programm in Physical Education, Catholic University of Brasilia, Taguatinga, Brazil
,
1   Graduate Programm in Physical Education, Catholic University of Brasilia, Taguatinga, Brazil
,
Thiago dos Santos Rosa
7   Graduate Program in Physical Education and Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasilia, Taguatinga, Brazil
› Author Affiliations

Funding Information This study was financed in part by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) with grants from:– CNPq/MESP nº 19/2023 - Estudos e pesquisas voltados para a pesquisa, desenvolvimento, inovação e extensão em esporte e atividade física and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance code 001. This work was funded by the Fundação de Apoio à Pesquisa do Distrito Federal (FAP/DF) with grants from: demanda espontânea –Edital 09/2022.
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Abstract

Emerging evidence suggests that resistance training (RT) can mitigate respiratory muscle weakness in hemodialysis (HD) patients. However, the underlying mechanisms responsible for these beneficial effects remain unclear. The purpose of this study was to assess the impact of periodized RT on respiratory muscle strength and its relationship with handgrip strength (HGS), fat-free mass (FFM), nitric oxide (NO), and interdialytic weight gain (IWG) in HD patients. Thirty-three patients were randomly assigned to two groups: control (CTL; n=18) and RT (n=15). The RT group did not perform any additional exercise training specific to the respiratory tract. Maximal inspiratory (MIP) and expiratory (MEP) pressures, peak expiratory flow (PEF), HGS, FFM, NO, and IWG were measured before and after the intervention period. Participants in the RT group engaged in a 24-week RT program, three times per week. RT resulted in significant improvements in MIP, MEP, PEF, as well as enhancements in HGS, FFM, NO, and IWG (p<0.05). Notably, inverse correlations were observed between MIP (r=−0.37, p=0.03) and PEF (r=−0.4, p=0.02) with IWG. Thus, the amelioration of HGS and FFM coincided with a reduction in respiratory muscle weakness among HD patients. Decreased IWG and increased circulating NO are plausible mechanisms contributing to these improvements.



Publication History

Received: 10 December 2023

Accepted: 18 June 2024

Accepted Manuscript online:
19 June 2024

Article published online:
31 July 2024

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