Bustos, D., Cardoso, F., Rios, M. J., Cardoso, R., Carvalho, D. D., Guedes, J., Costa, J. T., Vaz, M., Baptista, J. S., Fernandes, R. J. (2026). Cardiorespiratory fitness profile of volunteer firefighters during intermittent incremental exercise: A cross-sectional study. PLoS ONE. https://doi.org/10.1371/journal.pone.0353529