Impact of acute exposure to air pollution on the cardiorespiratory performance of military firemen

Impact of acute exposure to air pollution on the cardiorespiratory performance of military firemen

Autor Oliveira, Ricardo Santos Autor UNIFESP Google Scholar
Barros Neto, Turibio Leite de Autor UNIFESP Google Scholar
Braga, Alfésio Luís Ferreira Google Scholar
Raso, Vagner Google Scholar
Pereira, Luiz Alberto Amador Google Scholar
Morette, Sergio Ricardo Autor UNIFESP Google Scholar
Carneiro, Regina.c. Autor UNIFESP Google Scholar
Instituição Polícia Militar do Estado de São Paulo Escola de Educação Física
Universidade Federal de São Paulo (UNIFESP)
Universidade Católica de Goiás Centro de Estudos de Enfermagem e Nutrição
Universidade de São Paulo (USP)
Universidade de Santo Amaro Faculdade de Medicina Programa de Pediatria Ambiental
Universidade Católica de Santos Programa de Pós-graduação em Saúde Coletiva
Resumo 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.
Assunto Air pollution
Firemen
Cardiorespiratory performance
Cardiopulmonary exercise testing
Idioma Inglês
Data 2006-12-01
Publicado em Brazilian Journal of Medical and Biological Research. Associação Brasileira de Divulgação Científica, v. 39, n. 12, p. 1643-1649, 2006.
ISSN 0100-879X (Sherpa/Romeo, fator de impacto)
Editor Associação Brasileira de Divulgação Científica
Extensão 1643-1649
Fonte http://dx.doi.org/10.1590/S0100-879X2006005000046
Direito de acesso Acesso aberto Open Access
Tipo Artigo
Web of Science WOS:000243103300016
SciELO S0100-879X2006001200016 (estatísticas na SciELO)
URI http://repositorio.unifesp.br/handle/11600/3409

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