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Related Concept Videos

Masonry in Cold and Hot Weather Conditions01:21

Masonry in Cold and Hot Weather Conditions

In cold weather, masonry construction requires specific precautions to ensure mortar does not freeze before curing, as this can significantly weaken its strength and watertightness. Mortar temperature should be maintained between 60°F and 80°F to support proper hydration and curing. Below 40°F, mortar water must be heated, but should not exceed 120°F as high temperatures can reduce mortar's compressive and bond strength.
Other key practices include keeping masonry units and sand dry and...
Decreased Body Temperature01:29

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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 sustained extreme cold exposure, and severe...
Cold Weather Concreting01:27

Cold Weather Concreting

When freshly poured concrete is exposed to freezing temperatures before it has set, the water within the concrete can freeze. This expansion disrupts the setting process, delays chemical reactions necessary for hardening, and increases the volume of pores within the hardened concrete, which weakens its overall structure. If the concrete manages to reach an appreciable strength before it freezes, the damage can be somewhat mitigated.
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Responses to Heat and Cold Stress02:45

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Thermoregulation

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Related Experiment Video

Updated: Jun 13, 2026

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions
07:54

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

Published on: March 9, 2021

Exercise in a cold climate.

R J Shephard

    Canadian Family Physician Medecin De Famille Canadien
    |May 15, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Winter athletes need practical advice on cold exposure. Minimizing heat loss through convection via clothing is crucial for maintaining core body temperature and preventing hypothermia.

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    Last Updated: Jun 13, 2026

    Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions
    07:54

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    Published on: March 9, 2021

    Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol
    08:21

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

    Published on: June 8, 2017

    Area of Science:

    • Sports Medicine
    • Environmental Physiology
    • Human Physiology

    Background:

    • Understanding the human body's response to cold is essential for winter sports.
    • Heat loss mechanisms (radiation, convection, conduction, evaporation) must be counteracted by metabolism.
    • Convective heat loss is significant for athletes and requires mitigation through protective clothing.

    Purpose of the Study:

    • To provide practical advice for winter sportsmen regarding the body's response to cold.
    • To outline strategies for minimizing heat loss and maintaining core body temperature.
    • To discuss physiological challenges and adaptations related to cold exposure in sports.

    Main Methods:

    • Review of fundamental physiological responses to cold.
    • Analysis of heat loss and heat gain mechanisms in the human body.
    • Discussion of practical implications for winter sports participants.

    Main Results:

    • Convection is the primary source of heat loss for winter sportsmen, necessitating appropriate clothing.
    • Maintaining core body temperature above 95°F is critical; temperatures below 90°F are fatal.
    • Warming, physical activity, and shivering are key mechanisms for restoring body heat.

    Conclusions:

    • Minimizing convective heat loss through effective clothing is paramount for winter athletes.
    • Addressing cold-induced conditions like angina and bronchospasm can be achieved through warming and humidifying inspired air.
    • While aerobic power is minimally affected, athletes must be aware of risks like muscular injuries and frostbite, and the process of cold acclimatization.