Impact of acute exposure to air pollution on the cardiorespiratory performance of military firemen
The objective of the present study was to determine the impact of acute short-term exposure to air pollution on the cardiorespiratory performance of military fireman living and working in the city of Guarujá, São Paulo, Brazil. Twenty-five healthy non-smoking firemen aged 24 to 45 years had about 1...
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Associação Brasileira de Divulgação Científica
2006-12-01
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doaj-9c37856b3d8048bb8ba3a2050775bf8e2020-11-25T00:03:23ZengAssociação Brasileira de Divulgação CientíficaBrazilian Journal of Medical and Biological Research0100-879X1414-431X2006-12-01391216431649Impact of acute exposure to air pollution on the cardiorespiratory performance of military firemenR.S. OliveiraT.L. Barros NetoA.L.F. BragaV. RasoL.A.A. PereiraS.R. MoretteR.C. CarneiroThe objective of the present study was to determine the impact of acute short-term exposure to air pollution on the cardiorespiratory performance of military fireman living and working in the city of Guarujá, São Paulo, Brazil. Twenty-five healthy non-smoking firemen aged 24 to 45 years had about 1 h of exposure to low and high levels of air pollution. The tests consisted of two phases: phase A, in Bertioga, a town with low levels of air pollution, and phase B, in Cubatão, a polluted town, with a 7-day interval between phases. The volunteers remained in the cities (Bertioga/Cubatão) only for the time required to perform the tests. Cumulative load 10 ± 2 min-long exertion tests were performed on a treadmill, consisting of a 2-min stage at a load of 7 km/h, followed by increasing exertion of 1 km h-1 min-1 until the maximum individual limit. There were statistically significant differences (P < 0.05) in anaerobic threshold (AT) between Cubatão (35.04 ± 4.91 mL kg-1 min-1) and Bertioga (36.98 ± 5.62 mL kg-1 min-1; P = 0.01), in the heart rate at AT (AT HR; Cubatão 152.08 ± 14.86 bpm, Bertioga 157.44 ± 13.64 bpm; P = 0.001), and in percent maximal oxygen consumption at AT (AT%VO2max; Cubatão 64.56 ± 6.55%, Bertioga 67.40 ± 5.35%; P = 0.03). However, there were no differences in VO2max, maximal heart rate or velocity at AT (ATvel) observed in firemen between towns. The acute exposure to pollutants in Cubatão, SP, caused a significant reduction in the performance at submaximal levels of physical exertion.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006001200016Air pollutionFiremenCardiorespiratory performanceCardiopulmonary exercise testing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
R.S. Oliveira T.L. Barros Neto A.L.F. Braga V. Raso L.A.A. Pereira S.R. Morette R.C. Carneiro |
spellingShingle |
R.S. Oliveira T.L. Barros Neto A.L.F. Braga V. Raso L.A.A. Pereira S.R. Morette R.C. Carneiro Impact of acute exposure to air pollution on the cardiorespiratory performance of military firemen Brazilian Journal of Medical and Biological Research Air pollution Firemen Cardiorespiratory performance Cardiopulmonary exercise testing |
author_facet |
R.S. Oliveira T.L. Barros Neto A.L.F. Braga V. Raso L.A.A. Pereira S.R. Morette R.C. Carneiro |
author_sort |
R.S. Oliveira |
title |
Impact of acute exposure to air pollution on the cardiorespiratory performance of military firemen |
title_short |
Impact of acute exposure to air pollution on the cardiorespiratory performance of military firemen |
title_full |
Impact of acute exposure to air pollution on the cardiorespiratory performance of military firemen |
title_fullStr |
Impact of acute exposure to air pollution on the cardiorespiratory performance of military firemen |
title_full_unstemmed |
Impact of acute exposure to air pollution on the cardiorespiratory performance of military firemen |
title_sort |
impact of acute exposure to air pollution on the cardiorespiratory performance of military firemen |
publisher |
Associação Brasileira de Divulgação Científica |
series |
Brazilian Journal of Medical and Biological Research |
issn |
0100-879X 1414-431X |
publishDate |
2006-12-01 |
description |
The objective of the present study was to determine the impact of acute short-term exposure to air pollution on the cardiorespiratory performance of military fireman living and working in the city of Guarujá, São Paulo, Brazil. Twenty-five healthy non-smoking firemen aged 24 to 45 years had about 1 h of exposure to low and high levels of air pollution. The tests consisted of two phases: phase A, in Bertioga, a town with low levels of air pollution, and phase B, in Cubatão, a polluted town, with a 7-day interval between phases. The volunteers remained in the cities (Bertioga/Cubatão) only for the time required to perform the tests. Cumulative load 10 ± 2 min-long exertion tests were performed on a treadmill, consisting of a 2-min stage at a load of 7 km/h, followed by increasing exertion of 1 km h-1 min-1 until the maximum individual limit. There were statistically significant differences (P < 0.05) in anaerobic threshold (AT) between Cubatão (35.04 ± 4.91 mL kg-1 min-1) and Bertioga (36.98 ± 5.62 mL kg-1 min-1; P = 0.01), in the heart rate at AT (AT HR; Cubatão 152.08 ± 14.86 bpm, Bertioga 157.44 ± 13.64 bpm; P = 0.001), and in percent maximal oxygen consumption at AT (AT%VO2max; Cubatão 64.56 ± 6.55%, Bertioga 67.40 ± 5.35%; P = 0.03). However, there were no differences in VO2max, maximal heart rate or velocity at AT (ATvel) observed in firemen between towns. The acute exposure to pollutants in Cubatão, SP, caused a significant reduction in the performance at submaximal levels of physical exertion. |
topic |
Air pollution Firemen Cardiorespiratory performance Cardiopulmonary exercise testing |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006001200016 |
work_keys_str_mv |
AT rsoliveira impactofacuteexposuretoairpollutiononthecardiorespiratoryperformanceofmilitaryfiremen AT tlbarrosneto impactofacuteexposuretoairpollutiononthecardiorespiratoryperformanceofmilitaryfiremen AT alfbraga impactofacuteexposuretoairpollutiononthecardiorespiratoryperformanceofmilitaryfiremen AT vraso impactofacuteexposuretoairpollutiononthecardiorespiratoryperformanceofmilitaryfiremen AT laapereira impactofacuteexposuretoairpollutiononthecardiorespiratoryperformanceofmilitaryfiremen AT srmorette impactofacuteexposuretoairpollutiononthecardiorespiratoryperformanceofmilitaryfiremen AT rccarneiro impactofacuteexposuretoairpollutiononthecardiorespiratoryperformanceofmilitaryfiremen |
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