Brazilian Journal of Enviromnent
Open Access Journal
CiteScore
0.5
Indexada na
SCOPUS
QUALIS
B3
2017-2021
quadriênio
Open Access Journal
0.5
Indexada na
SCOPUS
B3
2017-2021
quadriênio
Tecnologias e Estudos Ambientais | Vol. 13 Issue 2 (2025)
PhD and Master's student in Cardiology at the Federal University of Rio de Janeiro (UFRJ)
Professor of undergraduate physiotherapy at the Iguaçu University (UNIG)
Coordinator of Scientific Initiation Projects at the Iguaçu University (UNIG)
Physiotherapist graduated from Iguaçu University (UNIG)/ Scientific Initiation Program, Nova Iguaçu (RJ), Brazil
Undergraduate student of the Medicine Course at the Iguaçu University (UNIG) / Scientific Initiation Program, Nova Iguaçu (RJ), Brazil
Undergraduate in Physiotherapy at Iguaçu University (UNIG)/ Scientific Initiation Program, Nova Iguaçu (RJ), Brazil
Graduated in Physiotherapy from Iguaçu University (UNIG)/ Scientific Initiation Program, Nova Iguaçu (RJ), Brazil
Master's student in Statistics at the Institute of Mathematics (IM) in the Postgraduate Program in Statistics (PPGE) at the Federal University of Rio de Janeiro (UFRJ)
Research Coordinator at Iguaçu University (UNIG) / Professor of the Scientific Initiation Program at Iguaçu University (RJ), Brazil / PhD in Cardiology from the Fluminense Federal University (UFF)
Published in July 21, 2025
Air pollution is a major public health issue, associated with cardiovascular diseases, respiratory conditions, and cancer. Physical activity in polluted urban environments can trigger acute and chronic hemodynamic effects, even in healthy individuals. This study analyzed the hemodynamic effects of individual exposure to fine particulate matter (PM2,5) in indoor and outdoor environments during a 6-Minute Walk Test (6MWT). Thirty healthy volunteers (18–70 years old) participated, with monitoring of hemodynamic variables (heart rate [HR], blood pressure [BP], oxygen saturation [SpO₂], respiratory rate [RR], Borg scale) and environmental factors (PM2,5, temperature, humidity). Statistical analysis included Student’s T-test, Pearson correlation, and univariate regression (p ≤ 0.05). PM2,5 concentrations exceeded the WHO standard by 7.2 times, but no significant acute hemodynamic effects were observed. RR and distance covered in the 6MWT differed between environments, with better performance outdoors. Humidity positively influenced distance indoors (R² = 0.33; p < 0.001), while temperature affected RR outdoors (R² = 0.14; p = 0.044). A negative correlation between PM2,5 and SpO2 was observed outdoors (R = -0.23). In conclusion, healthy individuals may not exhibit significant acute hemodynamic responses during low-intensity, short-duration activities, even under high PM2,5 concentrations. However, poor air quality in urban areas underscores the need for public policies to create safer exercise environments, particularly in regions with heavy vehicular traffic.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 2025 Paulo Henrique Moura, Camille Rodrigues Oliveira, Anna Luíza Guimarães Rosa, Ramon Isidorio da Silva, Leonardo Martins Lima, Leandro Dias Gomes Carvalho, Adalgiza Mafra Moreno
https://orcid.org/0000-0001-7077-2514