Evaluation of dose-response relationship between smoking load and cardiopulmonary fitness in adult smokers: A cross-sectional study

• Autor(a) principal: Lauria, Vinicius Tonon [UNIFESP]
• Data de Publicação: 2017
• Outros Autores: Sperandio, Evandro Fornias [UNIFESP], Sousa, Thiago Luis Wanderley de [UNIFESP], Vieira, Wesley de Oliveira [UNIFESP], Romiti, Marcello, Gagliardi, Antônio Ricardo de Toledo, Arantes, Rodolfo Leite, Dourado, Victor Zuniga [UNIFESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNIFESP
• Texto Completo: https://repositorio.unifesp.br/handle/11600/55058; https://dx.doi.org/10.1016/j.rppnen.2016.11.007
• topic: Smoking load; Cardiopulmonary exercise testing; Spirometry; Physical fitness; Tobacco use disorder

Objective: To evaluate the dose-response relationship between smoking load and cardiopulmonary fitness, as measured with cardiopulmonary exercise testing (CPET), in adult smokers free of respiratory diseases. Methods: After a complete clinical evaluation and spirometry, 95 adult smokers (35 men and 60 women) underwent CPET on a treadmill. Results: The physiological responses during CPET showed lower cardiorespiratory fitness levels, regardless of smoking load, with a peak V-o2(') lower than 100% of the expected value and a lower maximum heart rate. We observed a significant moderate negative correlation between smoking load and peak V-o2('). The smoking load also presented a significant negative correlation with maximum heart rate(r=-0.36