Occupational heat illness in Washington State, 1995–2005

Bonauto, David K.; Anderson, Robert; Rauser, Edmund; Burke, Brian

doi:10.1002/ajim.20517

Cited by 96 publications

(112 citation statements)

References 13 publications

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“…Had only lost time claims been included, the rate would have been a tenth of that observed in Ontario. 9 Comparing trends of heat illness by industrial sector reveals similar patterns in Washington State as were noted in Ontario, the exception being the state's Manufacturing sector, which had proportionally fewer heat claims relative to all claims. 9 These differences are likely attributable to regional differences in climate, occupational demographics, prevention programming and claim administration, and reinforce the need for region-specific understanding of occupational heat illness.…”

Section: Discussionmentioning

confidence: 82%

“…Drawing on studies of heat illness in the US states of Washington and California, we might estimate that between 45-90% of cases with less severe heat illness that do not require time off work do not get reported in lost time compensation data. 9,25 While some of this burden was likely captured in the ED encounters, cases treated in primary care or workplace settings were excluded from this surveillance study of the Ontario labour force.…”

Section: Discussionmentioning

confidence: 99%

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Work-attributed Illness Arising From Excess Heat Exposure in Ontario, 2004–2010

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et al. 2013

Can J Public Health

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Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Work-attributed Illness Arising From Excess Heat Exposure in Ontario, 2004–2010

Fortune

Mustard

Etches

et al. 2013

Can J Public Health

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“…During the first week of an unaccustomed heat exposure, work performance is most affected and the threat of heat illness is greatest (Taylor, 2006). Additionally, it has been reported that 14% of heat-related illness occurred within the first week for inexperience construction workers (Bonauto et al, 2007). Therefore, it is suggested that special attention and arrangement should be given to less acclimatized rebar workers.…”

Section: Discussionmentioning

confidence: 99%

“…Workers who are more acclimatize to the heat stress and high workload have less risk for heat related illness (Bonauto et al, 2007). Heat acclimatization is a series of physiological changes or accommodations of the body in response to repeated heat stress exposures.…”

Section: Discussionmentioning

confidence: 99%

Comparing the physiological and perceptual responses of construction workers (bar benders and bar fixers) in a hot environment

et al. 2014

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Highlights We found that, in a hot environment, physical workload (in terms of energy expenditure) of rebar work is: overall rebar work (2.57Kcal/min), bar bending (2.26Kcal/min) and bar fixing (2.67Kcal/min). Bar fixing induced significantly higher physiological responses in heart rate, percentage of maximal heart rate, oxygen consumption, energy expenditure as compared to bar bending. Perceptual response was also higher in bar fixing as compared to bar bending, but such difference was not statistically significant. oxygen consumption (9.53 vs. 7.14 ml/min/kg, p < 0.05), and energy expenditure (2.67 vs.2.26 Kcal/min, p < 0.05) (186 vs. 158 W, p < 0.05) as compared to bar bending. Perceptual response was higher in bar fixing but such difference was not statistically significant.Findings of this study enable the calculation of daily energy expenditure of rebar work.

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“…Bonauto et al 6 Additionally, the heat related illness claim rates in North America were highest in the third quarter of each year due to increased exposure to hot environments. The higher outdoor temperatures from May to September accounted for 95% of the total heat related illness claims during these months.…”

Section: Incidence Of Heat Illnessmentioning

confidence: 99%

Development of a perceptual hyperthermia index to evaluate heat strain during treadmill exercise

et al. 2011

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Fire suppression and rescue is a physiologically demanding occupation due to extreme external heat as well as the additional physical and thermal burden of the protective garments. The hot environment challenges body temperature homeostasis inducing heat stress. Accurate field assessment of hyperthermia is complex and unreliable. Purpose: The present investigation developed a perceptually based hyperthermia metric to measure physiologic exertional heat strain during treadmill exercise. Methods:Sixty-five (28.88 ± 6.75 yrs) female (n=11) and male (n=54) firefighters and non-firefighting volunteers participated in four related thermal stress investigations performing treadmill exercise while wearing thermal protective clothing in a heated room. Physiological and perceptual responses (i.e. body core temperature, perceived exertion, and thermal sensation) were assessed at baseline, 20-mins exercise, and at termination. Results: Perceived exertion increased from baseline (0.24 ± 0.42) to termination (7.43 ± 1.86). Thermal sensation increased from baseline (1.78 ± 0.77) to termination (4.50 ± 0.68). Perceived exertion and thermal sensation were measured concurrently with body core temperature to develop a twodimensional graphical representation of three "colored" exertional heat strain zones. Each exertional heat strain zone was representative of a range of mean body core temperature responses such that green incorporated 36.0 to 37.4°C, yellow incorporated 37.5 to 37.9°C, and red incorporated 38.0 to greater than 40.5°C. Conclusions: A perceptual hyperthermia index (PHI) was developed using ratings of iii perceived exertion and thermal sensation. The PHI can provide a quick and easy momentary assessment of the level of risk for exertional heat strain for firefighters engaged in fire suppression and rescue. This metric may be beneficial in high risk environments that threaten the lives of firefighters.

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Occupational heat illness in Washington State, 1995–2005

Abstract: HRI cases occur in employed populations. HRI rates vary by industry and are comparable to those previously published for the mining industry.

Cited by 96 publications

References 13 publications

Work-attributed Illness Arising From Excess Heat Exposure in Ontario, 2004–2010

Work-attributed Illness Arising From Excess Heat Exposure in Ontario, 2004–2010

Comparing the physiological and perceptual responses of construction workers (bar benders and bar fixers) in a hot environment

Development of a perceptual hyperthermia index to evaluate heat strain during treadmill exercise

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