Chapter 6 - Adaptations to Aerobic Endurance Training Programs Flashcards
Alveoli
The final passages in the respiratory system where gases are exchanged from the lungs.
Anatomical dead space
the area not functional for gas exchange (trachea, nose, mouth)
Arteriovenous oxygen difference
the difference in O2 content of arterial and venous blood
Blood doping
The process of artificially increasing red blood cell mass
Bradycardia
Low heart rate
Cardiac output
The amount of blood pumped by the heart in liters per minute.
Detraining
The partial or complete loss of training-induced adaptations in response to an insufficient training stimulus
Diastole
The phase of heart contraction after blood has been pumped before the heart is filled
Diastolic blood pressure
the pressure exerted on arterial walls when no blood being ejected
Diffusion
The movement of gasses across a membrane based on their partial pressures (O2 and CO2 in the case of the alveoli and capillaries)
Double product
The product of stroke volume and heart rate that results in the cardiac output value also known as the rate-product
Ejection fraction
the fraction of the end-diastolic volume that is ejected during heart contraction
End-diastolic volume
Volume of blood in the left ventricle after filling phase
Erythropoietin
Performance-enhancing substance that increases red blood cell production
Fick equation
used to calculate oxygen uptake
- VO2 = Q x a-vO2 difference
Frank-Starling mechanism
the principle that increased end-diastolic volume stretches myocardial fibers resulting in more forceful contraction and increased systolic ejection
Functional overreaching
Short period of intensified training