Technique for Continuously Monitoring Core Body Temperatures to Prevent Heat Stress Disorders in Workers Engaged in Physical Labor

Heat stress disorders or heat-related illnesses are a kind of physiological damage that occurs when the body cannot dissipate enough heat due to its thermoregulatory dysfunction. This paper aims to summarize the latest information on the diagnosis and treatment of heat-related illnesses. Heat stress disorders come in a variety of forms including heat edema, heat rash, heat cramps, heat syncope, heat tetany, severe heat exhaustion, and life-threatening heatstroke. Major risk factors may include excessive exercise, continuous exposure to high temperatures or humid environments, lack of acclimation, excessive clothing or protective equipment, obesity, and dehydration. Additional risk factors may include the patientʼs existing medical condition, environmental and personal factors, and the use of various drugs. Mild heat-related illnesses can be treated only by supportive care such as moving patients to a cool place and laying them in a supine position while elevating their legs and loosening their clothes. However, in the case of heatstroke, quickly lowering the body temperature is an essential in reducing the mortality rate. The most effective cooling method is to immerse the entire body in ice cold water.

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Heat stress disorders and headache: a case of new daily persistent headache secondary to heat stroke

BMJ Case Reports ◽

10.1136/bcr.08.2008.0700 ◽

2009 ◽

Vol 2009 (jan27 1) ◽

pp. bcr0820080700-bcr0820080700 ◽

Cited By ~ 1

Author(s):

C Di Lorenzo ◽

A Ambrosini ◽

G Coppola ◽

F Pierelli

Keyword(s):

Heat Stress ◽

Heat Stroke ◽

Stress Disorders ◽

New Daily Persistent Headache ◽

Heat Stress Disorders ◽

Persistent Headache

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Evaluation of Heat Stress on Bakery Worker in Makurdi Benue State, north east Nigeria.

American Journal of Agricultural Science, Engineering and Technology ◽

10.54536/ajaset.v5i2.72 ◽

2021 ◽

Vol 5 (2) ◽

pp. 26-39

Author(s):

Sampson Chisa Owhor ◽

Amine J D ◽

Orafa Patience Nguseer

Keyword(s):

Heat Stress ◽

Direct Contact ◽

Heat Stroke ◽

Research Work ◽

Control Measures ◽

Stress Disorders ◽

North East ◽

Stress Estimation ◽

Heat Stress Disorders ◽

Efficiency And Productivity

Nigeria being a tropical nation with high temperature and some Nigerian bakeries use mud oven which expose workers to direct contact with heat increasing their risk of heat stress. This research work tends to evaluate heat stress on bakery workers in Makurdi, Benue State. Forty questionnaires were validly filled and handed in from the workers at the various bakeries. Data such as age, duration of exposure as well as heat stress estimation and satisfaction level were filled in and data were analysis using statistics and results shows that heat stress reduces efficiency and productivity in workers poses health risk in workers such as heat cramps, heat rashes and in severe cases even heat stroke which may threaten the life of these workers. The results from measurements in this work has shown that bakery workers in Makurdi metropolis are highly exposed to heat stress and are likely to experience one disorder or the other with possible death consequences. It was also found that heat stress is often an overlooked problem as most workers lacked proper knowledge of control measures and employers have made little or no effort to prevent heat stress disorders.

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Core body temperature does not cool down with skin surface temperature during recovery at room temperature after acute heat stress exposure

Livestock Science ◽

10.1016/j.livsci.2016.07.010 ◽

2016 ◽

Vol 191 ◽

pp. 143-147 ◽

Cited By ~ 3

Author(s):

A. Sapkota ◽

A. Herr ◽

J.S. Johnson ◽

D.C. Lay

Keyword(s):

Heat Stress ◽

Body Temperature ◽

Surface Temperature ◽

Room Temperature ◽

Core Body Temperature ◽

Skin Surface ◽

Skin Surface Temperature ◽

Stress Exposure ◽

Acute Heat Stress ◽

Core Body

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Effects of sleep on a high-heat capacity mattress on sleep stages, EEG power spectra, cardiac interbeat intervals and body temperatures in healthy middle-aged men‡

SLEEP ◽

10.1093/sleep/zsz271 ◽

2019 ◽

Vol 43 (5) ◽

Cited By ~ 1

Author(s):

Sebastian Herberger ◽

Kurt Kräuchi ◽

Martin Glos ◽

Katharina Lederer ◽

Lisa Assmus ◽

...

Keyword(s):

Heart Rate ◽

Heat Capacity ◽

Body Temperature ◽

Wave Energy ◽

Sleep Stage ◽

High Heat ◽

Body Temperatures ◽

High Heat Capacity ◽

Eeg Power ◽

Core Body

Abstract Study Objectives This study deals with the question whether a slow (non-disturbing) reduction of core body temperature (CBT) during sleep increases sleep stage N3 and EEG slow wave energy (SWE) and leads to a slowing of heart rate in humans. Participants Thirty-two healthy male subjects with a mean ± SD age 46 ± 4 years and body mass index 25.2 ± 1.8 kg/m2. Methods A high-heat capacity mattress (HM) was used to lower body temperatures in sleep and was compared to a conventional low-heat capacity mattress (LM) in a double-blinded fashion. Polysomnography was performed accompanied by measurements of skin-, core body- and mattress surface-temperatures, and heart rate. EEG power spectral analyses were carried out using Fast Fourier Transform. Interbeat intervals were derived from the electrocardiogram. Results The HM led to a larger decline in CBT, mediated through higher heat conduction from the core via the proximal back skin onto the mattress together with reduced heart rate. These effects occurred together with a significant increase in sleep stage N3 and standardized slow wave energy (sSWE, 0.791–4.297 Hz) accumulated in NREM sleep. In the 2nd half of the night sSWE increase was significantly correlated with body temperature changes, for example with CBT decline in the same phase. Conclusions A HM subtly decreases CBT, leading to an increased amount of sleep stage N3 and of sSWE, as well as a slowing of heart rate.

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Comparison of Reticular and Rectal Core Body Temperatures in Lactating Dairy Cows

Journal of Dairy Science ◽

10.3168/jds.2007-0835 ◽

2008 ◽

Vol 91 (12) ◽

pp. 4661-4672 ◽

Cited By ~ 48

Author(s):

J.M. Bewley ◽

M.E. Einstein ◽

M.W. Grott ◽

M.M. Schutz

Keyword(s):

Dairy Cows ◽

Body Temperatures ◽

Lactating Dairy Cows ◽

Core Body

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Thermoregulatory Influence of a Cooling Vest on Hyperthermic Athletes

Journal of Athletic Training ◽

10.4085/1062-6050-43.1.55 ◽

2008 ◽

Vol 43 (1) ◽

pp. 55-61 ◽

Cited By ~ 28

Author(s):

Rebecca M. Lopez ◽

Michelle A. Cleary ◽

Leon C. Jones ◽

Ron E. Zuri

Keyword(s):

Heat Stress ◽

Cooling Rate ◽

Core Body Temperature ◽

Athletic Trainers ◽

Water Immersion ◽

Standard Of Care ◽

Humid Environment ◽

Randomized Control ◽

Ice Water ◽

Core Body

Abstract Context: Athletic trainers must have sound evidence for the best practices in treating and preventing heat-related emergencies and potentially catastrophic events. Objective: To examine the effectiveness of a superficial cooling vest on core body temperature (Tc) and skin temperature (Tsk) in hypohydrated hyperthermic male participants. Design: A randomized control design with 2 experimental groups. Setting: Participants exercised by completing the heat-stress trial in a hot, humid environment (ambient temperature = 33.1 ± 3.1°C, relative humidity = 55.1 ± 8.9%, wind speed = 2.1 ± 1.1 km/hr) until a Tc of 38.7 ± 0.3°C and a body mass loss of 3.27 ± 0.1% were achieved. Patients or Other Participants: Ten healthy males (age = 25.6 ± 1.6 years, mass = 80.3 ± 13.7 kg). Intervention(s): Recovery in a thermoneutral environment wearing a cooling vest or without wearing a cooling vest until Tc returned to baseline. Main Outcome Measure(s): Rectal Tc, arm Tsk, time to return to baseline Tc, and cooling rate. Results: During the heat-stress trial, Tc significantly increased (3.6%) and, at 30 minutes of recovery, Tc had decreased significantly (2.6%) for both groups. Although not significant, the time for return to baseline Tc was 22.6% faster for the vest group (43.8 ± 15.1 minutes) than for the no-vest group (56.6 ± 18.0 minutes), and the cooling rate for the vest group (0.0298 ± 0.0072°C/min) was not significantly different from the cooling rate for the no-vest group (0.0280 ± 0.0074°C/min). The Tsk during recovery was significantly higher (2.1%) in the vest group than in the no-vest group and was significantly lower (7.1%) at 30 minutes than at 0 minutes for both groups. Conclusions: We do not recommend using the cooling vest to rapidly reduce elevated Tc. Ice-water immersion should remain the standard of care for rapidly cooling severely hyperthermic individuals.

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