Athletic Training Practice Exam

What factors significantly increase the risk of hypothermia during exercise in cold weather?

1. Light clothing and low chill factor

2. Wind and wet weather

3. Layered clothing and dry weather

4. Heavy clothing and wind

The correct answer is: Wind and wet weather

The factors that significantly increase the risk of hypothermia during exercise in cold weather include wind and wet weather. Wind can strip away the insulating layer of warmth that our bodies produce, leading to a rapid decrease in body temperature. This is often referred to as the "wind chill factor," which makes the air feel much colder than the actual temperature. Moreover, wet weather, whether from rain or sweat, exacerbates heat loss because water conducts heat away from the body much more efficiently than air. When clothing becomes wet, it loses its insulating properties, allowing heat to escape more quickly. Combined, wind and wet conditions can create a dangerous environment where the body is unable to maintain its core temperature, leading to hypothermia. In contrast, light clothing and a low chill factor, as well as layered clothing and dry weather, provide better thermal insulation and protection against the elements. Heavy clothing can potentially trap heat but may also increase the risk if it becomes wet or is not breathable, but it does not directly contribute to hypothermia as effectively as the combination of wind and wet conditions.