Physiological Responses and Performance of Simulated High-Rise Firefighting.
| Autor: | Stevenson RDM; From the University of Bath, Bath, United Kingdom (RD, J.L.J.); and University College London, London, United Kingdom (J.W.)., Warwick J, Bilzon JLJ |
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| Jazyk: | angličtina |
| Zdroj: | Journal of occupational and environmental medicine [J Occup Environ Med] 2024 Feb 01; Vol. 66 (2), pp. 141-147. Date of Electronic Publication: 2023 Nov 09. |
| DOI: | 10.1097/JOM.0000000000003010 |
| Abstrakt: | Objective: The aim of the study is to determine the physiological effects of breathing apparatus and ascent strategies during a simulated 120-m vertical high-rise firefighting ascent. Methods: Twenty-eight firefighters completed four high-rise firefighting trials wearing standard- or extended-duration breathing apparatus with continuous ascent (SDBA-C/EDBA-C) or with breaks (SDBA-B/EDBA-B). Task time, heart rate, ratings of perceived exertion, core body temperature, and thermal comfort were recorded at predetermined elevations. Results: Task time took significantly longer during the EDBA-C compared with SDBA-C trial. Heart rate (at 40, 80, and 100 m) was significantly lower in trials following breaks compared with the continuous trials. Core body temperature rose by 0.11°C every 10 m of ascent. During the SDBA trials, 89% to 96% of firefighters activated their low air alarm compared with only 7% in EDBA. Conclusions: Firefighters should wear EDBA beyond 80 m of ascent and are encouraged to take regular breaks. Competing Interests: Conflict of interest: None declared. (Copyright © 2023 American College of Occupational and Environmental Medicine.) |
| Databáze: | MEDLINE |
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