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Heat stress reduction of helicopter crew wearing a ventilated vest.
Aviat Space Environ Med. 2006 May; 77(5):545-50.AS

Abstract

BACKGROUND

Helicopter pilots are often exposed to periods of high heat strain, especially when wearing survival suits. Therefore, a prototype of a ventilated vest was evaluated on its capability to reduce the heat strain of helicopter pilots during a 2-h simulated flight.

HYPOTHESIS

It was hypothesized that the ventilated vest would reduce pilot heat stress.

METHODS

Five male and one female helicopter pilots flew for 2 h in a simulator in three different conditions; 15 degrees C wet bulb globe temperature (WBGT) without ventilation, 32 degrees C WBGT without ventilation, and 32 degrees C WBGT with a ventilated vest.

RESULTS

Wearing the ventilated vest significantly reduced the increase in rectal temperature and increased thermal comfort. This made it possible for all subjects to complete the 2-h session.

CONCLUSION

With the ventilated vest the subjects experienced less heat stress, thereby allowing all subjects to successfully complete the experiment, though two of the six pilots could not complete the 2-h flying task in the hot condition without cooling due to heat-related problems.

Authors+Show Affiliations

Operational Performance Group, Department of Performance and Comfort, TNO Human Factors, Soesterberg, The Netherlands. Peter.Reffeltrath@tno.nl

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16708535

Citation

Reffeltrath, Peter A.. "Heat Stress Reduction of Helicopter Crew Wearing a Ventilated Vest." Aviation, Space, and Environmental Medicine, vol. 77, no. 5, 2006, pp. 545-50.
Reffeltrath PA. Heat stress reduction of helicopter crew wearing a ventilated vest. Aviat Space Environ Med. 2006;77(5):545-50.
Reffeltrath, P. A. (2006). Heat stress reduction of helicopter crew wearing a ventilated vest. Aviation, Space, and Environmental Medicine, 77(5), 545-50.
Reffeltrath PA. Heat Stress Reduction of Helicopter Crew Wearing a Ventilated Vest. Aviat Space Environ Med. 2006;77(5):545-50. PubMed PMID: 16708535.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Heat stress reduction of helicopter crew wearing a ventilated vest. A1 - Reffeltrath,Peter A, PY - 2006/5/20/pubmed PY - 2006/10/21/medline PY - 2006/5/20/entrez SP - 545 EP - 50 JF - Aviation, space, and environmental medicine JO - Aviat Space Environ Med VL - 77 IS - 5 N2 - BACKGROUND: Helicopter pilots are often exposed to periods of high heat strain, especially when wearing survival suits. Therefore, a prototype of a ventilated vest was evaluated on its capability to reduce the heat strain of helicopter pilots during a 2-h simulated flight. HYPOTHESIS: It was hypothesized that the ventilated vest would reduce pilot heat stress. METHODS: Five male and one female helicopter pilots flew for 2 h in a simulator in three different conditions; 15 degrees C wet bulb globe temperature (WBGT) without ventilation, 32 degrees C WBGT without ventilation, and 32 degrees C WBGT with a ventilated vest. RESULTS: Wearing the ventilated vest significantly reduced the increase in rectal temperature and increased thermal comfort. This made it possible for all subjects to complete the 2-h session. CONCLUSION: With the ventilated vest the subjects experienced less heat stress, thereby allowing all subjects to successfully complete the experiment, though two of the six pilots could not complete the 2-h flying task in the hot condition without cooling due to heat-related problems. SN - 0095-6562 UR - https://www.unboundmedicine.com/medline/citation/16708535/Heat_stress_reduction_of_helicopter_crew_wearing_a_ventilated_vest_ DB - PRIME DP - Unbound Medicine ER -