Body armor, performance, and physiology during repeated high-intensity work task

Article


Larsen, Brianna, Netto, Kevin, Skovli, Daniel, Vincs, Kim, Vu, Sarah and Aisbett, Brad. 2012. "Body armor, performance, and physiology during repeated high-intensity work task." Military Medicine: international journal of AMSUS. 177 (11), pp. 1308-1315. https://doi.org/10.7205/MILMED-D-11-00435
Article Title

Body armor, performance, and physiology during repeated high-intensity work task

ERA Journal ID40335
Article CategoryArticle
AuthorsLarsen, Brianna (Author), Netto, Kevin (Author), Skovli, Daniel (Author), Vincs, Kim (Author), Vu, Sarah (Author) and Aisbett, Brad (Author)
Journal TitleMilitary Medicine: international journal of AMSUS
Journal Citation177 (11), pp. 1308-1315
Number of Pages8
Year2012
Place of PublicationUnited States
ISSN0026-4075
1930-613X
Digital Object Identifier (DOI)https://doi.org/10.7205/MILMED-D-11-00435
Abstract

This study examined the effect of body armor during repeated, intermittent high-intensity simulated military work. Twelve males performed 11 repetitions of a military style circuit, wearing no armor on one occasion and full armor (∼17 kg) on another. Performance was measured by the time to complete individual work tasks plus overall circuit time to completion. Heart rate, intestinal temperature, and rating of perceived exertion were recorded after each circuit. Participants’ circuit time to completion was 7.3 ± 1.0 seconds slower (p < 0.01) when wearing armor. Shooting, vaulting, and crawling were also slower (0.8 ± 0.2, 0.4 ± 0.2, and 1.0 ± 0.4 seconds, respectively; all p ≤ 0.05). No differences were observed for box lifting. Higher core temperatures were reported for the armor condition for circuit’s 7 to 11 (p = 0.01–0.05). Rating of perceived exertion was higher (1 ± 0; p = 0.03) when wearing armor. No differences were observed for heart rate. Wearing armor impairs repeated high-intensity military task performance. In the relatively short work time utilized, this decrement did not accrue over time. The impairment may, then, be related to the armor load, rather than accumulating fatigue.

Keywordsbody armor; physical performance; exercise; strain
ANZSRC Field of Research 2020420702. Exercise physiology
350505. Occupational and workplace health and safety
Public Notes

Copyright of Military Medicine is the property of Association of Military Surgeons of the United States and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use.

Byline AffiliationsDeakin University
Australian Defence Apparel, Australia
Institution of OriginUniversity of Southern Queensland
Permalink -

https://research.usq.edu.au/item/q5y35/body-armor-performance-and-physiology-during-repeated-high-intensity-work-task

  • 89
    total views
  • 8
    total downloads
  • 1
    views this month
  • 0
    downloads this month

Export as

Related outputs

Basketball New Zealand infographic: female athlete health - Part 2: hormonal contraceptives: what are the options?
Larsen, Brianna and Bird, Stephen P.. 2021. Basketball New Zealand infographic: female athlete health - Part 2: hormonal contraceptives: what are the options? Wellington, New Zealand. Basketball New Zealand.
Basketball New Zealand infographic: female athlete health - understanding your menstrual cycle: what’s normal, what’s not?
Larsen, Brianna and Bird, Stephen. 2020. Basketball New Zealand infographic: female athlete health - understanding your menstrual cycle: what’s normal, what’s not? Wellington, New Zealand. Basketball New Zealand.
A survey to identify physically demanding tasks performed during storm damage operations by Australian State Emergency Services personnel
Larsen, Brianna, Graham, Tony and Aisbett, Brad. 2013. "A survey to identify physically demanding tasks performed during storm damage operations by Australian State Emergency Services personnel." Applied Ergonomics: human factors in technology and society. 44 (1), pp. 128-133. https://doi.org/10.1016/j.apergo.2012.05.010
Effect of heat on firefighters' work performance and physiology
Larsen, Brianna, Snow, Rodney and Aisbett, Brad. 2015. "Effect of heat on firefighters' work performance and physiology." Journal of Thermal Biology. 53, pp. 1-8. https://doi.org/10.1016/j.jtherbio.2015.07.008
Firefighter feedback during active cooling: a useful tool for heat stress management?
Savage, Robbie J., Lord, Cara, Larsen, Brianna L., Knight, Teagan L., Langridge, Peter D. and Aisbett, Brad. 2014. "Firefighter feedback during active cooling: a useful tool for heat stress management?" Journal of Thermal Biology. 46, pp. 65-71. https://doi.org/10.1016/j.jtherbio.2014.10.003
The injury profile of an Australian specialist policing unit
Larsen, Brianna, Aisbett, Brad and Silk, Aaron. 2016. "The injury profile of an Australian specialist policing unit." International Journal of Environmental Research and Public Health. 13 (4), pp. 1-9. https://doi.org/10.3390/ijerph13040370
Subjective job task analyses for physically demanding occupations: what is best practice?
Larsen, Brianna and Aisbett, Brad. 2012. "Subjective job task analyses for physically demanding occupations: what is best practice?" Ergonomics: an international journal of research and practice in human factors and ergonomics. 55 (10), pp. 1266-1277. https://doi.org/10.1080/00140139.2012.697582
Sleep restriction during simulated wildfire suppression: effect on physical task performance
Vincent, Grace, Ferguson, Sally A., Tran, Jacqueline, Larsen, Brianna, Wolkow, Alexander and Aisbett, Brad. 2015. "Sleep restriction during simulated wildfire suppression: effect on physical task performance." PLoS One. 10 (1), pp. 1-16. https://doi.org/10.1371/journal.pone.0115329
Multiple days of heat exposure on firefighters’ work performance and physiology
Larsen, Brianna, Snow, Rod, Vincent, Grace, Tran, Jacqueline, Wolkow, Alexander and Aisbett, Brad. 2015. "Multiple days of heat exposure on firefighters’ work performance and physiology." PLoS One. 10 (9), pp. 1-16. https://doi.org/10.1371/journal.pone.0136413
Simulated firefighting task performance and physiology under very hot conditions
Larsen, Brianna, Snow, Rod, Williams-Bell, Michael and Aisbett, Brad. 2015. "Simulated firefighting task performance and physiology under very hot conditions." Frontiers in Physiology. 6, pp. 1-9. https://doi.org/10.3389/fphys.2015.00322
The Impact of Heat Exposure and Sleep Restriction on Firefighters’ Work Performance and Physiology during Simulated Wildfire Suppression
Vincent, Grace E., Aisbett, Brad, Larsen, Brianna, Ridgers, Nicola D., Snow, Rod and Ferguson, Sally A.. 2017. "The Impact of Heat Exposure and Sleep Restriction on Firefighters’ Work Performance and Physiology during Simulated Wildfire Suppression." International Journal of Environmental Research and Public Health. 14 (2), pp. 1-15. https://doi.org/10.3390/ijerph14020180
Response of women using oral contraception to exercise in the heat
Minahan, Clare, Melnikoff, Marina, Quinn, Karlee and Larsen, Brianna. 2017. "Response of women using oral contraception to exercise in the heat." European Journal of Applied Physiology. 117, pp. 1383-1391. https://doi.org/10.1007/s00421-017-3628-7
The Effects of Simulated Wildland Firefighting Tasks on Core Temperature and Cognitive Function under Very Hot Conditions
Williams-Bell, F. Michael, Aisbett, Brad, Murphy, Bernadette A. and Larsen, Brianna. 2017. "The Effects of Simulated Wildland Firefighting Tasks on Core Temperature and Cognitive Function under Very Hot Conditions." Frontiers in Physiology. 8, pp. 1-10. https://doi.org/10.3389/fphys.2017.00815
Identifying and characterising the physical demands for an Australian specialist policing unit
Silk, Aaron, Savage, Robbie, Larsen, Brianna and Aisbett, Brad. 2018. "Identifying and characterising the physical demands for an Australian specialist policing unit." Applied Ergonomics: human factors in technology and society. 68, pp. 197-203. https://doi.org/10.1016/j.apergo.2017.11.012
Oral contraceptives augment the exercise pressor reflex during isometric handgrip exercise
Minahan, Clare, O'Neill, Hailey, Sikkema, Nelie, Joyce, Sarah, Larsen, Brianna and Sabapathy, Surendran. 2018. "Oral contraceptives augment the exercise pressor reflex during isometric handgrip exercise." Physiological Reports. 6 (5), pp. 1-8. https://doi.org/10.14814/phy2.13629
Immune Response in Women during Exercise in the Heat: A Spotlight on Oral Contraception
Larsen, Brianna, Cox, Amanda, Quinn, Karlee, Fisher, Rhiannon and Minahan, Clare. 2018. "Immune Response in Women during Exercise in the Heat: A Spotlight on Oral Contraception." Journal of Sports Science and Medicine. 17 (2), pp. 229-236.
Adding sleep restriction to the equation: impact on wildland firefighters’ work performance and physiology in hot conditions
Vincent, Grace E., Ferguson, Sally, Larsen, Brianna, Ridgers, Nicola D., Snow, Rod and Aisbett, Brad. 2018. "Adding sleep restriction to the equation: impact on wildland firefighters’ work performance and physiology in hot conditions." International Archives of Occupational and Environmental Health. 91, pp. 601-611. https://doi.org/10.1007/s00420-018-1304-9
The Post-Exercise Inflammatory Response to Repeated-Sprint Running in Hypoxia
Morrison, Jaime, Larsen, Brianna, Cox, Amanda J. and Minahan, Clare. 2018. "The Post-Exercise Inflammatory Response to Repeated-Sprint Running in Hypoxia." Journal of Sports Science and Medicine. 17 (4), pp. 533-538.
The effects of hydration on cognitive performance during a simulated wildfire suppression shift in temperate and hot conditions
Cvirn, Michael, Dorrian, Jillian, Smith, Bradley, Vincent, Grace, Jay, Sarah, Roach, Greg, Sargent, Charli, Larsen, Brianna, Aisbett, Brad and Ferguson, Sally. 2019. "The effects of hydration on cognitive performance during a simulated wildfire suppression shift in temperate and hot conditions." Applied Ergonomics: human factors in technology and society. 77, pp. 9-15. https://doi.org/10.1016/j.apergo.2018.12.018
Women’s Football: An Examination of Factors That Influence Movement Patterns
Griffin, Jesse, Larsen, Brianna, Horan, Sean, Keogh, Justin, Dodd, Karl, Andreatta, Melissa and Minahan, Clare. 2020. "Women’s Football: An Examination of Factors That Influence Movement Patterns." Journal of Strength and Conditioning Research. 34 (8), pp. 2384-2393. https://doi.org/10.1519/JSC.0000000000003638
Inflammation and Oral Contraceptive Use in Female Athletes Before the Rio Olympic Games
Larsen, Brianna, Cox, Amanda, Colbey, Candice, Drew, Michael, McGuire, Helen, Fazekas de St Groth, Barbara, Hughes, David, Vlahovich, Nicole, Waddington, Gordon, Burke, Louise, Lundy, Bronwen, West, Nicholas and Minahan, Clare. 2020. "Inflammation and Oral Contraceptive Use in Female Athletes Before the Rio Olympic Games." Frontiers in Physiology. 11, pp. 1-8. https://doi.org/10.3389/fphys.2020.00497
Practice does not make perfect: A brief view of athletes’ knowledge on the menstrual cycle and oral contraceptives
Larsen, Brianna, Morris, Kirstin, Quinn, Karlee, Osborne, Mark and Minahan, Clare. 2020. "Practice does not make perfect: A brief view of athletes’ knowledge on the menstrual cycle and oral contraceptives." Journal of Science and Medicine in Sport. 23 (8), pp. 690-694. https://doi.org/10.1016/j.jsams.2020.02.003
The impact of sleep restriction and simulated physical firefighting work on acute inflammatory stress responses
Wolkow, Alexander, Ferguson, Sally A., Vincent, Grace E., Larsen, Brianna, Aisbett, Brad and Main, Luana C.. 2015. "The impact of sleep restriction and simulated physical firefighting work on acute inflammatory stress responses." PLoS One. 10 (9), pp. 1-17. https://doi.org/10.1371/journal.pone.0138128
Task-specific effects of modular body armor
Larsen, Brianna, Netto, Kevin and Aisbett, Brad. 2014. "Task-specific effects of modular body armor." Military Medicine: international journal of AMSUS. 179 (4), pp. 428-434. https://doi.org/10.7205/MILMED-D-13-00318
The effect of body armor on performance, thermal stress, and exertion: a critical review
Larsen, Brianna, Netto, Kevin and Aisbett, Brad. 2011. "The effect of body armor on performance, thermal stress, and exertion: a critical review." Military Medicine: international journal of AMSUS. 176 (11), pp. 1265-1273. https://doi.org/10.7205/MILMED-D-10-00470