Pulmonary System and Response to Exercise Flashcards
Pulmonary System Function
Exchange of O2 and CO2
Control of pH
Oral communication
Ventilation
Product of tidal volume and breathing frequency
Mild to Moderate Exercise
Ventilation is increased by tidal volume
Vigorous Exercise
Ventilation is increased by breathing rate
Light Exercise
Increased tidal volume and respiratory rate
70-80% of Peak Exercise
TV and RR both increase up to this point
> 80 % of Peak Exercise
Increased RR
Vital Capacity
TV generally plateaus at 50-60% of VC
Respiratory Rate
Increases 1-3x in normal adults
Increases 6-7x in conditioned athletes
Anaerobic Threshold
Lactate starts to accumulate in blood
Level above which pyruvate is produced faster than it can be used aerobically, causing exhaustion and intramuscular pain
Minute Ventilation
Amount of oxygen brought into lungs per minute
Max Inspiratory Level
Most air can take in with one single breath after normal breathing
Max Expiratory Level
Big deep breath in and blow all the air out
Vital Capacity
Max inspiratory to max expiratory
Residual Volume
What’s left in lungs after max expiratory breath
