How does training affect performance? - PHYSIOLOGICAL ADAPTATIONS IN RESPONSE TO TRAINING Flashcards
What is meant by the body’s resting heart rate?
The number of contractions your heart makes in a minute at rest.
In relation to resting heart rate, what is the heart rate of an untrained person?
About 70 beats per minute.
In relation to resting heart rate, what is the heart rate of a trained person?
About 40 beats per minute.
In relation to resting heart rate, what is the reason for the decrease in heart rate?
An increase in stroke volume.
In relation to resting heart rate, why does the heart rate decrease when the stroke volume is increased?
Due to more blood being pumped out of the heart and the same amount of blood is pumped into the muscles in the form of oxygen.
What is “Stroke Volume?”
Stroke volume is the amount of blood ejected from the left ventricle during a contraction.
How is Stroke Volume measured?
mL/beat.
In relation to stroke volume, what is the increase in stroke volume due to?
The increase in stroke volume is due to the increased elasticity in the walls of the left ventricle, resulting in stronger more powerful contractions.
