Electrical activity and fatigue of respiratory and locomotor muscles in obstructive respiratory diseases during field walking test

In subjects with obstructive respiratory diseases the increased work of breathing during exercise can trigger greater recruitment and fatigue of respiratory muscles. Associated with these changes, lower limb muscle dysfunctions, further contribute to exercise limitations. We aimed to assess electric...

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Bibliographic Details
Published in:PloS one 2022-04, Vol.17 (4), p.e0266365-e0266365
Main Authors: Cavalcanti, Jéssica D, Fregonezi, Guilherme Augusto F, Sarmento, Antonio J, Bezerra, Thiago, Gualdi, Lucien P, Pennati, Francesca, Aliverti, Andrea, Resqueti, Vanessa R
Format: Article
Language:English
Subjects:
Amplitudes
Asthma
Biology and Life Sciences
Case-Control Studies
Chronic obstructive pulmonary disease
Dyspnea
Electromyography
Exercise
Exercise Test
Fatigue
Health aspects
Hospitals
Humans
Low frequencies
Lung diseases
Lung diseases, Obstructive
Medical research
Medicine and Health Sciences
Medicine, Experimental
Muscle fatigue
Muscle strength
Muscles
Muscular fatigue
Obstructive lung disease
Physical Sciences
Physiological aspects
Pulmonary Disease, Chronic Obstructive
Research and Analysis Methods
Respiration Disorders
Respiratory diseases
Respiratory Muscles
Spirometry
Stress (Physiology)
Thigh
Values
Walking
Walking - physiology
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Summary:In subjects with obstructive respiratory diseases the increased work of breathing during exercise can trigger greater recruitment and fatigue of respiratory muscles. Associated with these changes, lower limb muscle dysfunctions, further contribute to exercise limitations. We aimed to assess electrical activity and fatigue of two respiratory and one locomotor muscle during Incremental Shuttle Walking Test (ISWT) in individuals with obstructive respiratory diseases and compare with healthy. This is a case-control study. Seventeen individuals with asthma (asthma group) and fifteen with chronic obstructive pulmonary disease (COPD group) were matched with healthy individuals (asthma and COPD control groups). Surface electromyographic (sEMG) activity of sternocleidomastoid (SCM), scalene (ESC), and rectus femoris (RF) were recorded during ISWT. sEMG activity was analyzed in time and frequency domains at baseline and during the test (33%, 66%, and 100% of ISWT total time) to obtain, respectively, signal amplitude and power spectrum density (EMG median frequency [MF], high- and low-frequency bands, and high/low [H/L] ratio). Asthma group walked a shorter distance than controls (p = 0.0007). sEMG amplitudes of SCM, ESC, and RF of asthma and COPD groups were higher at 33% and 66% of ISWT compared with controls groups (all p
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0266365