Which of the following physiologic responses to exercise is typically observed in children?

Which of the following physiologic responses to exercise is typically observed in children?

• A. Decreased heart rate
• B. Higher oxygen uptake
• C. Lower respiratory rate
• D. Increased diastolic blood pressure

Answer: (B)

In children, higher oxygen uptake during exercise is an important physiologic response and is typically observed due to their relatively high metabolic rates and the efficiency of their cardiovascular and respiratory systems as they engage in physical activity. During growth and development, children often have increased muscular demand for oxygen when exercising, leading to higher oxygen uptake to support their activity levels, especially during aerobic exercises. This capacity to utilize oxygen efficiently is a key component of endurance and overall physical performance, aiding in their growth and health. By maximizing oxygen uptake, children are able to sustain their energy levels during physical activities, which supports not just exercise but also play and overall physical development. The other options do not align with typical physiological responses seen in children during exercise. Decreased heart rates are generally more associated with trained adults at rest; lower respiratory rates are typically not characteristic of exercise in any age group; and increased diastolic blood pressure would not usually occur among children during physical activity, as diastolic pressure remains stable while systolic pressure rises in response to exercise.

In children, higher oxygen uptake during exercise is an important physiologic response and is typically observed due to their relatively high metabolic rates and the efficiency of their cardiovascular and respiratory systems as they engage in physical activity. During growth and development, children often have increased muscular demand for oxygen when exercising, leading to higher oxygen uptake to support their activity levels, especially during aerobic exercises.

This capacity to utilize oxygen efficiently is a key component of endurance and overall physical performance, aiding in their growth and health. By maximizing oxygen uptake, children are able to sustain their energy levels during physical activities, which supports not just exercise but also play and overall physical development.

The other options do not align with typical physiological responses seen in children during exercise. Decreased heart rates are generally more associated with trained adults at rest; lower respiratory rates are typically not characteristic of exercise in any age group; and increased diastolic blood pressure would not usually occur among children during physical activity, as diastolic pressure remains stable while systolic pressure rises in response to exercise.