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Decreased Body Temperature

Decreased Body Temperature

A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...

Body Temperature

Body Temperature

The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...

Body Temperature

Body Temperature

Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C...

Factors Affecting Body Temperature

Factors Affecting Body Temperature

As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:

Assessing Body Temperature - Axilla

Assessing Body Temperature - Axilla

Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...

Assessing Body Temperature - Oral

Assessing Body Temperature - Oral

Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...

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Related Experiment Video

Updated: Apr 5, 2026

Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol

Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol

Published on: June 8, 2017

Ice swimming and changes in body core temperature: a case study.

Beat Knechtle¹, Thomas Rosemann², Christoph A Rüst²

¹Institute of Primary Care, University of Zurich, Zurich, Switzerland ; Gesundheitszentrum St. Gallen, Vadianstrasse 26, 9001 St. Gallen, Switzerland.

|August 8, 2015

Summary

Ice swimming involves swimming 1.609 km in water 5°C or colder. This study tracked an experienced swimmer

Keywords:

Body fat Ice swimming Open-water swimming

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Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

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Published on: March 9, 2021

Area of Science:

Sports Medicine
Physiology
Open-Water Swimming

Background:

Ice swimming, a novel open-water discipline, involves swimming 1.609 km in water 5°C or colder.
This case study examines body core temperature fluctuations in an experienced ice swimmer.

Purpose of the Study:

To investigate changes in body core temperature during preparation and completion of two official 'Ice Miles'.
To identify predictors of body core temperature changes during cold-water swimming.

Main Methods:

A single experienced ice swimmer (56 years, BMI 35.6 kg/m², 44.8% body fat) recorded data over 65 training sessions and two 'Ice Miles'.
Body core temperature was measured using a thermoelectric probe before, during, and after swimming.
Statistical analysis identified predictors for temperature changes.

Main Results:

Body core temperature initially increased, then dropped during swimming, reaching its lowest point during recovery.
Water temperature and initial body core temperature were key predictors of temperature decrease.
In 'Ice Miles', core temperature peaked post-start, dropped by 1.7°C during swimming, and reached a nadir ~100 minutes post-start (34.5-35.0°C).

Conclusions:

Despite a high BMI and body fat, the swimmer experienced a significant drop in body core temperature post-swim (<36°C).
High body fat may mitigate hypothermia during ice swimming but not necessarily during the recovery phase.
Future 'Ice Mile' swimmers should be aware of post-swim temperature regulation challenges.