Cardiorespiratory responses in different types of squats and frequencies of whole body vibration in patients with chronic obstructive pulmonary disease

• Published in: Journal of applied physiology (1985) Vol. 126; no. 1; pp. 23 - 29
• Main Authors: Lage, Vanessa K S, Lacerda, Ana Cristina R, Neves, Camila D C, Chaves, Maria Gabriela A, Soares, Aline A, Lima, Liliana P, Matos, Mariana A, Leite, Hércules R, Fernandes, José Sebastião C, Oliveira, Vinicius Cunha, Mendonça, Vanessa A
• Format: Journal Article
• Language: English
• Published: United States American Physiological Society 01-01-2019
• Subjects: Aged; Amplitudes; Carbon dioxide; Cardiorespiratory Fitness; Case-Control Studies; Chronic obstructive pulmonary disease; Exercise - physiology; Female; Heart rate; Humans; Lung diseases; Male; Middle Aged; Obstructive lung disease; Oxygen; Oxygen consumption; Oxygen content; Oxygen production; Physical training; Pulmonary Disease, Chronic Obstructive - physiopathology; Ventilation; Vibration; metabolic equivalent; lung disease; vibration exercise; oxygen consumption
• ISSN: 8750-7587; 1522-1601
• DOI: 10.1152/japplphysiol.00406.2018

This study aims to investigate the cardiorespiratory responses to different vibration frequencies to characterize the intensity of exercise, as well as to compare the effect of two types of squatting exercises (static and dynamic) on the whole body vibration (WBV) exercise in individuals with chronic obstructive pulmonary disease (COPD). Twenty-six subjects were divided and paired into healthy and COPD groups that performed static squatting associated with WBV (frequencies: 30, 35, and 40 Hz; amplitude: 2 mm) and dynamic squatting associated with WBV (frequency: 35 Hz; amplitude 2 mm) on a vertical vibration platform. Oxygen consumption (V̇o
), heart rate (HR), minute ventilation (V̇e), ratio of minute ventilation to oxygen production (V̇e/V̇o
), ratio of minute ventilation to carbon dioxide production (V̇e/V̇co
), oxygen saturation (SpO
), and rating of perceived exertion were measured. For both groups, there was a decrease in V̇e/V̇o
and V̇e/V̇co
ratios during static and dynamic squats, as well as an increase in other cardiorespiratory parameters, and no significant difference existed between them. There was an effect of the type of squat on the HR variation; the values in the static squat were higher than those of the dynamic squat in both groups. There was a significant difference with a reduction in SpO
at 40 Hz frequency when compared with 30 Hz in the COPD group. The other variables behaved similarly between the frequencies. The WBV exercise, regardless of the frequencies used, represented a mild effort that promoted cardiorespiratory response in COPD, with greater responses in the static squat and no adverse effect. NEW & NOTEWORTHY This study showed that an acute session of light exercise of whole body vibration (WBV) can increase the cardiorespiratory responses in patients with chronic obstructive pulmonary disease (COPD), reaching values similar to that of the control group. The results might contribute, therefore, to the elaboration of exercise protocols with WBV for the treatment of patients with COPD during rehabilitation. Thus, future studies referring to training on the vibratory platform could use these exercise parameters and demonstrate possible long-term benefits.