ArticleMedicine and science in sports and exercise2012
Pulmonary artery and intestinal temperatures during heat stress and cooling.
Article in Medicine and science in sports and exercise, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Cognitive and perceptual responses during passive heat stress in younger and older adults.American journal of physiology. Regulatory, integrative and comparative physiology · 2015Trial
- Muscle temperature increases during a single far infrared sauna session without changes in intestinal temperature.Journal of applied physiology (Bethesda, Md. : 1985) · 2025Article
- A century of exercise physiology: concepts that ignited the study of human thermoregulation. Part 2: physiological measurements.European journal of applied physiology · 2023Review
- Onset of cardiovascular drift during progressive heat stress in young adults (PSU HEAT project).Journal of applied physiology (Bethesda, Md. : 1985) · 2023Article
- The In Vitro Efficacy of Activated Charcoal in Fecal Ceftriaxone Adsorption among Patients Who Received Intravenous Ceftriaxone.Antibiotics (Basel, Switzerland) · 2023Article
- Human temperature regulation under heat stress in health, disease, and injury.Physiological reviews · 2022Review
- Kidney injury risk during prolonged exposure to current and projected wet bulb temperatures occurring during extreme heat events in healthy young men.Journal of applied physiology (Bethesda, Md. : 1985) · 2022Article
- Role of Bradykinin Type 2 Receptors in Human Sweat Secretion: Translational Evidence Does Not Support a Functional Relationship.Skin pharmacology and physiology · 2021Article
- Human thermoregulation during prolonged exposure to warm and extremely humid environments expected to occur in disabled submarine scenarios.American journal of physiology. Regulatory, integrative and comparative physiology · 2020Article
- Arterial stiffness during whole-body passive heat stress in healthy older adults.Physiological reports · 2019Article
- Article
- Validity of Core Temperature Measurements at 3 Rectal Depths During Rest, Exercise, Cold-Water Immersion, and Recovery.Journal of athletic training · 2017Article
- Validation of an ingestible temperature data logging and telemetry system during exercise in the heat.Temperature (Austin, Tex.)Article
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Authors and funding
6 authors.
Funding
Abstract
purposeIn humans, whole body heating and cooling are used to address physiological questions where core temperature is central to the investigated hypotheses. Core temperature can be measured in various locations throughout the human body. The measurement of intestinal temperature is increasingly used in laboratory settings as well as in athletics. However, it is unknown whether intestinal temperature accurately tracks pulmonary artery blood temperature, the gold standard, during thermal stimuli in resting humans, which is the investigated hypothesis.
methodsThis study compared pulmonary artery blood temperature (via thermistor in a pulmonary artery catheter) with intestinal temperature (telemetry pill) during whole body heat stress (n = 8), followed by whole body cooling in healthy humans (mean ± SD; age = 24 ± 3 yr, height = 183 ± 8 cm, mass = 78.1 ± 8.2 kg). Heat stress and subsequent cooling were performed by perfusing warm followed by cold water through a tube-lined suit worn by each subject.
resultsBefore heat stress, blood temperature (36.69°C ± 0.25°C) was less than intestinal temperature (36.96°C ± 0.21°C, P = 0.004). The increase in blood temperature after 20 min of heat stress was greater than the intestinal temperature (0.70 ± 0.24 vs 0.47 ± 0.18, P = 0.001). However, the increase in temperatures at the end of heat stress was similar between sites (blood Δ = 1.32°C ± 0.20°C vs intestinal Δ = 1.21°C ± 0.36°C, P = 0.30). Subsequent cooling decreased blood temperature (Δ = -1.03°C ± 0.34°C) to a greater extent than intestinal temperature (Δ = -0.41°C ± 0.30°C, P = 0.04).
conclusionsIn response to the applied thermal provocations, early temperature changes in the intestine are less than the temperature changes in pulmonary artery blood.
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