Effects of body mass and morphology on thermal responses in water

Toner, M. M.; Sawka, Michael N.; Foley, M. E.; Pandolf, Kent B.

doi:10.1152/jappl.1986.60.2.521

Cited by 53 publications

(48 citation statements)

References 9 publications

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“…Like with most cooling techniques, cooling efficiency was affected by body mass; however, brain cooling was not. 4,17 Although larger studies are needed to confirm this finding, it does suggest that the RCD may be a good option for the rapid, noninvasive initiation of brain cooling, even in obese individuals.…”

Section: Discussionmentioning

confidence: 94%

Local Brain Temperature Reduction Through Intranasal Cooling With the RhinoChill Device

Aböu-Chebl

Sung

Barbut

et al. 2011

Stroke

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Background and Purpose-Hypothermia is neuroprotectant but currently available cooling methods are laborious, invasive, and require whole-body cooling. There is a need for less invasive cooling of the brain. This study was conducted to assess the safety and efficacy of temperature reduction of the RhinoChill transnasal cooling device. Methods-We conducted a prospective single-arm safety and feasibility study of intubated patients for whom temperature reduction was indicated. After rhinoscopy, the device was activated for 1 hour. Brain, tympanic, and core temperatures along with vital signs and laboratory studies were recorded. All general and device-related adverse events were collected for the entire hypothermia treatment. Results-A total of 15 patients (mean age, 50.3Ϯ17.1 years) were enrolled. Brain injury was caused by intracerebral hemorrhage, trauma, and ischemic stroke in equal numbers. Hypothermia was induced for fever control in 9 patients and for neuroprotection/intracranial pressure control in 6. Core temperature, brain temperature, and tympanic temperature were reduced an average of 1.1Ϯ0.6°C (range, 0.3 to 2.1°C), 1.4Ϯ0.4°C (range, 0.8 to 5.1°C), and 2.2Ϯ2°C (range, 0.5 to 6.5°C), respectively. Only 2 patients did not achieve the goal of Ն1°C decrease in temperature. Brain temperature , tympanic temperature , and core temperature reductions were similar between the afebrile and febrile patients. There were no unanticipated adverse events and only 1 anticipated adverse event: hypertension in 1 subject that led to discontinuation of cooling after 30 minutes. There were no nasal complications. Conclusions-Intranasal cooling with the RhinoChill device appears safe and effectively lowers brain and core temperatures. Further study is warranted to assess the efficacy of hypothermia through intranasal cooling for brain-injured patients. (Stroke. 2011;42:2164-2169.)

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Section: Discussionmentioning

confidence: 94%

Local Brain Temperature Reduction Through Intranasal Cooling With the RhinoChill Device

Aböu-Chebl

Sung

Barbut

et al. 2011

Stroke

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“…Therefore, it appears that traffic control workers had more effective tissue insulation against heat loss, compared with construction workers 13,14) . In addition, concerning the individual preventive ideas related to clothing against the cold environment being considered to work comfortably in winter, we observed that prevalence of wearing the thermal underwear, body warmer, thermal trousers, underpants, thermal socks, thermal shoes and muffler in the traffic control workers were significantly higher than the construction workers.…”

Section: Subjective Symptoms In the Winter And Prevention Measure Agamentioning

confidence: 97%

Comparison of Subjective Symptoms and Cold Prevention Measures in Winter between Traffic Control Workers and Construction Workers in Japan

Inaba¹,

Kurokawa²,

Mirbod³

2009

Ind Health

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To help making comfortable workplaces and to prevent health disorders induced by the exposure to moderate cold in two different groups of out-door workers, we conducted a survey to compare subjective symptoms and cold prevention measures in winter between traffic control workers and construction workers. The subjects of this study were 98 male traffic control workers and 149 male workers engaged in building construction. Work loads of traffic control workers and construction workers were estimated at RMR1~2 and RMR2~4, respectively. All subjects were asked to complete a self-administered questionnaire covering age, occupational career, working figure, present illness, past history of diseases, individual preventive measures to the cold, subjective symptoms in the winter (43 items) and subjective symptoms occurred during daytime working in the winter (6 items). In two parts of the construction workplaces (the place where a morning assembly was held and on the 7th floor of the construction site) dry bulb, wet bulb and globe temperatures were measured in January. Windchill Index (kcal/cm 2 h) was calculated by the measured dry bulb temperature and wind velocity. Mean values of dry bulb temperature between 9:00 and 16:30 in the place where a morning assembly was held for three days were between 4.8 ± 1.2˚C at 9:00am and 9.3 ± 1.1˚C at noon. Mean values of Windchill Index in the place where a morning assembly was held were between 490.8 ± 23.9 kcal/cm 2 h at 9:30am and 608.2 ± 47.3 kcal/cm 2 h at 2:30pm. Occupational career, monthly working days, daily working hours, one way commuting hours, and daily smoking numbers of the traffic control workers were significantly shorter than the construction workers (p<0.01). There were no significant differences in the prevalence of chillness in the arms and legs between the traffic control workers (5.1%) and the construction workers (0.7%). Prevalence of wearing a warm underwear, body warmer, warm trousers, underpants, warm socks, shoe warmer and muffler in the traffic control workers were significantly higher than the construction workers. The subjective symptoms in winter complained most frequently were shoulder stiffness (51.0%), finger cold sensation (50.0%) and neck stiffness (48.0%) in the traffic control workers, and were easy to get fatigued (49.0%), lumbago (48.3%) and finger cold sensation (47.7%) in the construction workers. On the basis of the results obtained, it is clearly shown that the two groups are at the risk of disorders due to their working environment. Therefore, these workers are needed to undergo occupational health programs for prevention of cold exposure disorders. Applications of preventive countermeasures for both groups are discussed.

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“…Skin thermistors (Model 409B, Yellow Springs, OH) were used to measure skin temperature at the following sites: chest, triceps, forearm, thigh, and calf [18]. Rectal, skin and air temperatures were collected by an interface (iNet-100HC, Omega Engineering, Stamford, CT).…”

Section: Measurementsmentioning

confidence: 99%

“…Rectal, skin and air temperatures were collected by an interface (iNet-100HC, Omega Engineering, Stamford, CT). Mean skin temperature (Tsk) was calculated using the formula supported in the current literature [18]: Tsk = (0.22 × calf temperature) + (0.28 × thigh temperature) + (0.28 × chest temperature) + (0.14 × forearm temperature) + (0.08 × triceps temperature).…”

Section: Measurementsmentioning

confidence: 99%

Do Glucose Containing Beverages Play A Role In Thermoregulation, Thermal Sensation, And Mood State?

Glickman¹,

Seo²,

Peacock³

et al. 2014

Medicine & Science in Sports & Exercise

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Introduction: Dehydration limits the appropriate delivery of oxygen and substrates to the working muscle. Further, the brain's ability to function may also be compromised whereby thermal sensation and mood state may be altered. Purpose: The purpose of the present investigation was to compare the thermoregulatory, perceptual, and negative mood state profile in glucose (GLU) vs. non-glucose beverage (NON-GLU) condition.

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Effects of body mass and morphology on thermal responses in water

Cited by 53 publications

References 9 publications

Local Brain Temperature Reduction Through Intranasal Cooling With the RhinoChill Device

Local Brain Temperature Reduction Through Intranasal Cooling With the RhinoChill Device

Comparison of Subjective Symptoms and Cold Prevention Measures in Winter between Traffic Control Workers and Construction Workers in Japan

Do Glucose Containing Beverages Play A Role In Thermoregulation, Thermal Sensation, And Mood State?

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