What Is a Valid Reason for Lowering the Intensity of Exercise

question 49

Multiple Choice

What is a valid reason for lowering the intensity of exercise at higher altitudes?

• A)Exposure to higher altitudes causes a decrease in pulmonary ventilation and heart rate
• B)High altitudes cause a decrease in cardiac output at submaximal workloads
• C)High altitudes cause an increase in pulmonary ventilation, heart rate, and cardiac output at submaximal workloads
• D)The angina threshold is lower due to a 25% reduction in maximal oxygen consumption

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Definitions:

Flat Cells

A type of cell with a thin, flat shape, often found in layers lining surfaces such as the skin or blood vessels; also known as squamous cells.

Organ System

Group of related organs working together; examples are the digestive and endocrine systems.

Muscular

Relating to or constituting muscle or muscles, particularly regarding strength, appearance, or the ability to perform physical tasks.

Nervous

relating to the nerves or nervous system, or described as easily agitated or anxious.