| Title | Acute Physiological Response of Live-Fire Simulation Activities Affecting Cardiovascular Health in Live-Fire Instructors: A Randomized Controlled Simulation Study. | ||
| Author | Park, Gwan-Jin; Kong, So Yeon; Shin, Dong-Min; Lee, Dae In; Ku, Beom-Seok; Oh, Je-Hwan; Kim, Sang-Chul | ||
| Journal | J Occup Environ Med | Publication Year/Month | 2022-Jan |
| PMID | 34310541 | PMCID | -N/A- |
| Affiliation | 1.Department of Emergency Medicine, Chungbuk National University Hospital, 776, 1st Sunhwan-ro, Seowon-gu, Cheongju-si, Chungcheongbuk-do 28646, South Korea (Dr Park and Dr Kim); Strategic Research, Laerdal Medical Tanke Svilandsgate 30, 4002 Stavanger, Norway (Dr Kong); Department of Paramedic Science, Korea National University of Transportation, 61, Daehak-ro, Jeungpyeong-gun, Chungcheongbuk-do, 27909, South of Korea (Dr Shin); Division of Cardiology, Chungbuk National University Hospital, 776, 1st Sunhwan-ro, Seowon-gu, Cheongju-si, Chungcheongbuk-do 28646, South Korea (Dr Lee); Department of Fire Investigation and Analysis, Yongin Fire Station, 45, Myongji-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 17057, South Korea (Mr Ku); Icheon Fire Station, 2739, Gyeongchung-daero, Icheon-si, Gyeonggi-do, 17379, South Korea (Mr Oh); Department of Emergency Medicine, College of Medicine, Chungbuk National University, 1 Chungdae-ro, Seowongu, Cheongju-si, Chungcheongbuk-do 28646, South Korea (Dr Kim). | ||
OBJECTIVES: This study aimed to assess acute physiological response of fire suppression simulation affecting cardiovascular health during repeated bouts of simulation. METHODS: Fifteen live-fire instructors were randomly divided into three groups according to fire suppression simulation frequency. Vital signs, biomarkers, and heart rate variability (HRV) were measured before and after simulation. RESULTS: Vital signs increased immediately after fire simulation and returned to the normal range after 2 h. Most biomarker levels were changed within the normal ranges 72 h after the simulation training. However, one of the HRV frequency domains, high frequency power, was severely suppressed after 1 h and tended to recover after 2 h of simulation (P < 0.05). CONCLUSIONS: Vital signs and their biomarkers were changed within the normal range regardless of the number of bouts of fire suppression simulations. HRV could be used to assess the effects of fire suppression simulation on cardiovascular health.