During endurance training, a(n) _____ contributes to augmented venous return and increased end diastolic volume.

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Multiple Choice

During endurance training, a(n) _____ contributes to augmented venous return and increased end diastolic volume.

Endurance training expands plasma volume, increasing total blood volume. This extra fluid in the intravascular space boosts the amount of blood returning to the heart during diastole, raising end-diastolic volume. With a larger preload, the heart can eject more blood per beat (the Frank-Starling mechanism), which increases stroke volume and helps sustain higher cardiac output during endurance activity. So the rise in plasma volume directly enhances venous return. A higher red blood cell count improves oxygen delivery but doesn’t directly increase venous return and can raise blood viscosity; a decrease in plasma volume would reduce venous return, and no change wouldn’t augment it.

During endurance training, a(n) _____ contributes to augmented venous return and increased end diastolic volume.

Study for the Physiology of Training Test. Practice with comprehensive questions, explore hints and detailed explanations. Master your knowledge for success!

During endurance training, a(n) _____ contributes to augmented venous return and increased end diastolic volume.

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