Relationship between peak expiratory flow and impaired functional capacity in obese individuals
DOI:
https://doi.org/10.1590/fm.2021.34105Keywords:
Obesity. Peak expiratory flow. Walk test. Rapid assessment.Abstract
Introduction: Obesity, characterized by the accumulation of excess body fat, can alter respiratory mechanics and compromise functional capacity. Given its increasing prevalence and the significant morbidity associated with the condition, it is important to investigate techniques that enable rapid, easy measurement of lung function and the possible correlation between obesity and functional capacity. Objective: To assess lung function and functional capacity in obese adults and determine whether there is a correlation between reduced peak expiratory flow and impaired functional capacity. Methods: 30 participants, distributed into two groups: obese (36 ± 13 years) and normal weight (31 ± 9 years) were evaluated based on anthropometric measurements, the six-minute walk test (6MWT) and peak expiratory flow (PEF). Results: The obese individuals showed reduced PEF (382 ± 99 vs. 497 ± 104 L/min, p < 0.01), walked shorter distances in the 6MWT (453 ± 37 vs. 617 ± 50 m,p < 0.01), had higher blood pressure and perceived exertion (p < 0.05) when compared to normal weight participants. Additionally, there was a positive significant association between expiratory flow and distance walked in the 6MWT (r = 0.635 and p < 0.001). Conclusion: Obese individuals exhibited lower PEF and walked shorter distances in the 6MWT, indicating a positive correlation between these two variables. In light of this outcome, the assessment methods used could contribute to improving analysis of respiratory and functional status in this population and aid in exercise prescription.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
The authors guarantee that the works submitted to this journal are original and were not prepared in violation of any third party rights, having obtained all the necessary authorizations to include complementary content, such as, but not restricted to, translations, illustrations, tables and citations, whose precise sources the author also undertakes to indicate. The authors also declare that the works do not contain defamatory statements that violate morals, good customs and/or that violate intellectual property rights.
When submitting your paper, the Copyright Assignment signed by all authors must be attached.