Examining a novel firefighter exercise training program on simulated fire ground test performance, cardiorespiratory endurance, and strength: a pilot investigation

Brittany S Hollerbach, Sara A Jahnke, Walker S C Poston, Craig A Harms, Katie M Heinrich, Brittany S Hollerbach, Sara A Jahnke, Walker S C Poston, Craig A Harms, Katie M Heinrich

Abstract

Background: Firefighting is a dangerous occupation with high rates of injuries and fatalities, with the majority of line of duty fatalities due to cardiovascular events. Additionally, firefighters struggle with poor health/low levels of fitness, including high (> 80%) rates of overweight and obesity. Limited resources exist for fire departments that are tailored to the culture and work requirements of these "tactical athletes". Though there has been increasing interest in high intensity functional training (HIFT) programs, research data are lacking among firefighters and few studies have focused on training recruits. The purpose of this pilot investigation was to examine a novel HIFT program (TF20) on fire academy recruits' health, fitness, and performance as determined by a simulated fire ground test (SFGT), as well as determining the program's acceptability and feasibility.

Methods: Thirteen participants were recruited from an entry level fire academy and were randomly assigned to the control (CG, n = 6) or HIFT group (TF20, n = 7). The CG was asked to continue current exercise habits. TF20 was provided a 10-week online based training program that included periodized workouts, nutritional information, and mental readiness education. Due to attrition within the first two weeks of the study, 10 male fire recruits (23 ± 3 years) completed the study (CG, n = 3, TF20, n = 7). All 10 participants completed baseline and follow-up assessments.

Results: The TF20 group showed improvement on numerous outcome measures including SFGT (40% passing at baseline, 86% passing post-intervention). TF20 participants significantly increased estimated VO2max (p = 0.028), improved body composition (p = 0.028), and improved grip strength (p = 0.018). The CG did not experience any significant changes. The TF20 group completed approximately 75% of the assigned workouts.

Conclusion: While TF20 participants showed significant fitness gains, the small sample size limited direct comparisons to the CG. TF20 was well-received although there may be a better way to implement the intervention to increase participation. This investigation provides promising outcomes, useful information about implementation, feasibility, and acceptability for the TF20 HIFT program among firefighter recruits. IRB #8063 APPROVED 01/04/2016.

Trial registration: NCT03319394. Registered 28 September 2014. Retrospectively registered.

Keywords: Firefighter; Fitness; HIFT; Health; Occupational health.

Conflict of interest statement

The Kansas State University Institutional Review Board (IRB) approved this study (IRB #8063 APPROVED 01/04/2016); all participants provided written informed consent prior to participation.Not applicable.The authors report no competing interests.Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Figures

Fig. 1
Fig. 1
Randomization of Eligible Participants. Legend: TF20 = The First Twenty intervention; CG = comparison group

References

    1. Abel MG, Sell K, Dennison K. Design and implementation of fitness program for firefighters. Strength Cond J. 2011:31–42.
    1. Haynes HJG, Molis JL. U.S. firefighter injuries: 2016: National Fire Protection Association Fire Analysis and Research Division; 2017.
    1. Poston WS, Haddock CK, Jahnke SA, Jitnarin N, Tuley BC, Kales SN. The prevalence of overweight, obesity, and substandard fitness in a population-based firefighter cohort. J Occup Environ Med. 2011;53(3):266–273. doi: 10.1097/JOM.0b013e31820af362.
    1. Durand G, Tsismenakis AJ, Jahnke SA, Baur DM, Christophi CA, Kales SA. Firefighters physical activity: relation to fitness and cardiovascular disease risk. Med Sci Sports Exerc. 2011. 10.1249/MSS.0b013e318215cf25.
    1. Centers for Disease Control and Prevention (CDC). (2015). Adult obesity facts. . Accessed 8 Oct 2018.
    1. Abel MG, Mortara AJ, Pettitt RW. Evaluation of circuit-training intensity for firefighters. J Strength Cond Res. 2011;25(10):2895–2901. doi: 10.1519/JSC.0b013e31820da00c.
    1. Dennison KJ, Mullineaux DR, Yates JW, Abel MG. The effect of fatigue and training status on firefighter performance. J Strength Cond Res. 2012:1101–9.
    1. Heinrich KM, Spencer V, Fehl N, Poston WCS. Mission essential fitness: comparison of functional circuit training to traditional army physical training for active duty military. Mil Med. 2012;177(10):1125–1130. doi: 10.7205/MILMED-D-12-00143.
    1. Haddock CK, Poston WSC, Jahnke SA. Addressing the epidemic of obesity in the United States fire service: a report prepared for the national volunteer fire council. 2011. . Accessed 10 Nov 2018.
    1. National Fire Protection Association. 2018. NFPA 1500: standard on fire department occupational safety, health, and wellness program [data file]. . Accessed 10 Oct 2018.
    1. National Fire Protection Association. 2018. NFPA 1582: standard on comprehensive occupational medical program for fire departments [data file]. . Accessed 10 Oct 2018.
    1. National Fire Protection Association. 2015. NFPA 1583: standard on health-related fitness programs for fire department members [data file]. . Accessed 10 Oct 2018.
    1. Poplin GS, Harris RB, Pollack KM, Peate WF, Burgess JL. Beyond the fireground: injuries in the fire service. Inj Prev. 2012;18(4):228–233. doi: 10.1136/injuryprev-2011-040149.
    1. Jahnke SA, Poston WSC, Haddock CK, Jitnarin N. Injury among a population based sample of career firefighters in the Central USA. Injury prevention. 2013;19(6):393–398. doi: 10.1136/injuryprev-2012-040662.
    1. Poplin GS, Roe DJ, Burgess JL, Peate WF, Harris RB. Fire fit: assessing comprehensive fitness and injury risk in the fire service. Int Arch Occup Environ Health. 2016;89(2):251–259. doi: 10.1007/s00420-015-1068-4.
    1. Michaelides MA, Parpa KM, Henry LJ, Thompson GB, Brown BS. Assessment of physical fitness aspects and their relationship to firefighters' job abilities. J Strength Cond Res 2011;25(4), 956–965.
    1. Williams-Bell F, Kapralos M, Hogue B, Murphy A, Weckman E. Using serious games and virtual simulation for training in the fire service: a review. Fire Technol. 2015;51(3):553–584. doi: 10.1007/s10694-014-0398-1.
    1. Johnson County Community College. (2018). Course Descriptions. Retrieved from . Accessed 30 Dec 2018.
    1. Soteriades ES, Smith DL, Tsismenakis AJ, Baur DM, Kales SN. Cardiovascular disease in US firefighters: a systematic review. Cardiol Rev. 2011;19(4):202–215. doi: 10.1097/CRD.0b013e318215c105.
    1. National Fallen Firefighters Foundation. 2014. Confronting suicide in the fire service: strategies for intervention and prevention. . Accessed 10 Oct 2018.
    1. Staley JA, Weiner B, Linnan L. Firefighter fitness, coronary heart disease, and sudden cardiac death risk. Am J Health Behav. 2011;35(5):603–617. doi: 10.5993/AJHB.35.5.9.
    1. Bolanowski M, Nilsson BE. Assessment of human body composition using dual-energy x-ray absorptiometry and bioelectrical impedance analysis. Med Sci Monit. 2001;7(5):1029–1033.
    1. International Association of Firefighters (IAFF). The fire service joint labor management wellness-fitness initiative. 2008. Retrieved from . Accessed 20 Dec 2018.
    1. Tierney MT1, Lenar D, Stanforth PR, Craig JN, Farrar RP. Prediction of aerobic capacity in firefighters using submaximal treadmill and Stairmill protocols. J Strength Cond Res. 2010 Mar;24(3):75.
    1. Hamilton GF, McDonald C, Chenier TC. Measurement of grip strength: validity and reliability of the sphygmomanometer and Jamar grip dynamometer. J Orthop Sports Phys Ther. 1992;16(5):215–219. doi: 10.2519/jospt.1992.16.5.215.
    1. Mathiowetz V. Comparison of Rolyan and Jamar dynamometers for measuring grip strength. Occup Ther Int. 2002;9(3):201–209. doi: 10.1002/oti.165.
    1. American College of Sports Medicine . ACSM’s guidelines for exercise testing and prescription, ninth edition. Baltimore, MD: Wolters Kluwer Health; 2014.
    1. Baechle TR, Earle RW. Essentials of strength training and conditioning. Champaign, IL: Human Kinetics; 2008. pp. 395–396.
    1. International Association of Firefighters (IAFF). The fire service joint labor management wellness-fitness initiative candidate physical ability test, 2nd edition. 2007. Retrieved from . Accessed 15 Jan 2018.
    1. Maddison R, Mhurchu CN, Jiang Y, Vander Hoorn S, Rodgers A, Lawes CM, Rush E. International physical activity questionnaire (IPAQ) and New Zealand physical activity questionnaire (NZPAQ): a doubly labelled water validation. Int J Behav Nutr Phys Act. 2007;4(1):62. doi: 10.1186/1479-5868-4-62.
    1. Pallant J. SPSS survival manual: a step by step guide to data analysis using SPSS for windows (version 12) 2. Australia: Allen & Unwin; 2005.
    1. Patton M. Qualitative research and evaluation methods. Thousand Oaks, CA: SAGE; 2002.
    1. Gledhill N, Jamnik V. Characterization of the physical demands of firefighting. Can J Sport Sci. 1992:207–13.
    1. U.S. Department of Health and Human Services . Physical activity guidelines advisory committee. Washington, DC: Physical Activity Guidelines Advisory Committee Report; 2008.
    1. Jahnke SA, Hyder ML, Haddock CK, Jitnarin N, Day RS, Poston WSC. High-intensity fitness training among a national sample of male career firefighters. Saf Health Work. 2015;6:71–74. doi: 10.1016/j.shaw.2014.12.005.
    1. Roberts MA, O'Dea J, Boyce A, Mannix E. Fitness levels of firefighter recruits before and after a supervised exercise training program. J Strength Cond Res. 2002;16(2):271–277.
    1. Bennett, H., Parfitt, G., Davison, K., & Eston, R. (2016). Validity of submaximal step tests to estimate maximal oxygen uptake in healthy adults. 46(5), 737–750.
    1. Knapik, J., Reynolds, K., Santee, W. R., & Friedl, K. E. (2012). Load carriage in military operations: a review of historical, physiological, biomechanical and medical aspects. Military Quantitative Physiology: Problems and Concepts in Military Operational Medicine Office of the Surgeon General and the Borden Institute, Ft Detrick, MD, 303–37.
    1. Smith DL, Fehling PC, Hultquist EM, Lefferts WK, Barr DA, Storer TW, Cooper CB. Firefighter's personal protective equipment and the chronotropic index. Ergonomics. 2012;55(10):1243–1251. doi: 10.1080/00140139.2012.703696.

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