Abstract
Whole-body vibration (WBV) has gained prominence in the rehabilitation of individuals with chronic obstructive pulmonary disease (COPD) because it is a safe and low intensity exercise that promises beneficial effects on physical performance and quality of life. However, its effects on plasma cytokine levels in COPD are still unclear. The aim of the current study was to investigate the acute effects of WBV on inflammatory biomarkers in people with COPD. Twenty-six participants, COPD people (n=13) and healthy controls (n=13), were included. Both groups performed WBV at amplitude of 2 mm and frequency of vibration of 35 Hz, during six series of 30 seconds. They were assessed for lung function, body composition, 6-minute walking test (6MWT), handgrip strength test, plasma concentrations of interleukin (IL), IL-6, IL-8, and IL-10, and soluble tumor necrosis factor alpha (TNF-α) receptors (sTNFR-1 and sTNFR-2). People with COPD had moderate disease [forced expiratory volume in the first second (FEV1) = 58.1%], as well as a worse performance in the 6MWT. The plasma cytokine profile at rest showed that participants with COPD had higher levels of IL-8 and lower levels of IL-10. After one session of WBV, we found an increased plasma IL-10 level in the COPD group, with similar levels for healthy controls. One session of WBV modified the plasma IL-10 level. No effects were found on the other investigated cytokines.
Highlights
Chronic obstructive pulmonary disease (COPD) is a respiratory disease characterized by chronic airflow obstruction associated with an inflammatory lung response to particles and/or toxics gases [1]
According to the FEV1 values and the FEV1/forced vital capacity (FVC) ratio, participants with COPD were classified as moderate airway obstruction (GOLD 2) [1]
There are no significant differences in handgrip strength between groups, a moderate and significant inverse correlation was found between handgrip strength and IL-8 concentration (r= -0.43, p= 0.04) for participants with COPD
Summary
Chronic obstructive pulmonary disease (COPD) is a respiratory disease characterized by chronic airflow obstruction associated with an inflammatory lung response to particles and/or toxics gases [1] In this complex pulmonary inflammation process, there are inflammatory cells and mediators, such as cytokines tumor necrosis factor alpha (TNF-α), interleukin- (IL-) 8, IL-6, and IL-1β [2, 3]. A recent study of 14 inflammatory mediators (e.g., IL-10, IL-8, IL-6, and TNF-α) showed that most of the investigated cytokine levels in blood are higher for COPD when compared with those levels for smokers, former smokers without COPD, or nonsmokers [5] This chronic systemic inflammation declines lung function and other. Patients with persistent systemic inflammation have flare-ups and greater mortality rates [3, 7]
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