Heart & Blood
The number of times your heart beats in one minute.
What is heart rate?
Air breathed in or out in one normal breath.
What is tidal volume?
When oxygen supply meets oxygen demand.
What is steady state?
The amount of blood pumped out of the heart each beat.
What is stroke volume?
How many breaths you take per minute.
What is respiratory rate?
Heart rate does this during submaximal exercise before leveling off.
What is increases?
Heart rate × stroke volume = this.
What is cardiac output?
Tidal volume × respiratory rate = this.
What is ventilation?
Stroke volume stops increasing at about this % of VO₂ max.
What is 40–60%?
This blood pressure number rises the most during exercise.
What is systolic blood pressure?
The biggest breath you can blow out after a deep inhale.
What is vital capacity?
At the start of exercise, oxygen use rises quickly because of this.
What is oxygen deficit?
During hard exercise, this heart measure keeps rising even when stroke volume stops.
What is heart rate?
The movement of oxygen into the blood and carbon dioxide out.
What is gas exchange?
Stroke volume stops rising at high intensity because there is less time for this.
What is filling the heart?