Question

An athlete has more cardiac output than normal due to
a. Change in stroke volume
b. Change in heart rate
c. Parasympathetic stimulation
d. More release of acetylcholine near SA node.

• A. a & b
• B. a, b & c
• C. a, b, c & d
• D. b only

Answer 1

The correct option is A a & b

During an intensive workout, more blood and oxygen are required to the peripheral tissues of the arms and legs in highly trained athletes' bodies. A larger heart rate results in higher cardiac output, which also allows it to beat more slowly, as more blood is pumped out with each beat so, the stroke volume and heart rate of athletes is different than a normal person .

Hence the correct answer is (A) .