140. Physiological Strain at Critical WBGT for Different Protective Clothing Ensembles

2003 ◽  
Author(s):  
T. Bernard ◽  
C. Ashley ◽  
C. Preston
Keyword(s):  
Protective Clothing ◽  
Physiological Strain

Ice Slurry Ingestion and Physiological Strain During Work with Protective Clothing in Hot Conditions

2015 ◽  
Vol 47 ◽  
pp. 263
Author(s):  
Jason Ng ◽  
Elizabeth K. Aldrich ◽  
Jason C. Casey ◽  
Brendan J. Clair ◽  
Jonathan E. Wingo
Keyword(s):  
Protective Clothing ◽  
Ice Slurry ◽  
Physiological Strain

scholarly journals Impact of Different Personal Protective Clothing on Wildland Firefighters' Physiological Strain

2017 ◽  
Vol 8 ◽  
Author(s):  
Belén Carballo-Leyenda ◽  
José G. Villa ◽  
Jorge López-Satué ◽  
Jose A. Rodríguez-Marroyo
Keyword(s):  
Protective Clothing ◽  
Physiological Strain

Physiological Strain in Work with Gas Protective Clothing at Low Ambient Temperature

AIHAJ ◽  
1985 ◽  
Vol 46 (12) ◽  
pp. 720-723 ◽  
Author(s):  
JUHANI SMOLANDER ◽  
VEIKKO LOUHEVAARA ◽  
OLLI KORHONEN
Keyword(s):  
Ambient Temperature ◽  
Protective Clothing ◽  
Physiological Strain ◽  
Low Ambient Temperature

scholarly journals A physiological strain index to evaluate heat stress

1998 ◽  
Vol 275 (1) ◽  
pp. R129-R134 ◽  
Author(s):  
Daniel S. Moran ◽  
Avraham Shitzer ◽  
Kent B. Pandolf
Keyword(s):  
Heart Rate ◽  
Heat Stress ◽  
Protective Clothing ◽  
Age Groups ◽  
Weight Functions ◽  
Physiological Strain ◽  
Strain Index ◽  
Simultaneous Measurements ◽  
Physiological Strain Index ◽  
Universal Scale

A physiological strain index (PSI), based on rectal temperature (Tre) and heart rate (HR), capable of indicating heat strain online and analyzing existing databases, has been developed. The index rates the physiological strain on a universal scale of 0–10. It was assumed that the maximal Tre and HR rise during exposure to exercise heat stress from normothermia to hyperthermia was 3°C (36.5–39.5°C) and 120 beats/min (60–180 beats/min), respectively. Tre and HR were assigned the same weight functions as follows: PSI = 5(Tre t − Tre0) ⋅ (39.5 − Tre0)−1+ 5(HR t − HR0) ⋅ (180 − HR0)−1, where Tre t and HR t are simultaneous measurements taken at any time during the exposure and Tre0 and HR0 are the initial measurements. PSI was applied to data obtained from 100 men performing exercise in the heat (40°C, 40% relative humidity; 1.34 m/s at a 2% grade) for 120 min. A separate database representing seven men wearing protective clothing and exercising in hot-dry and hot-wet environmental conditions was applied to test the validity of the present index. PSI differentiated significantly ( P < 0.05) between the two climates. This index has the potential to be widely accepted and to serve universally after extending its validity to women and other age groups.

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