Test I (SECTION IV) Adaptions to Chronic Endurance Exercise Flashcards
Resting
VO2 = HR x SV x AVO2diff
what happens to each and why?
NC VO2
decrease HR (time in diastole)
increase SV (increase preload, decrease afterload, increase ventricle size, increase blood volume)
NC AVO2diff
Submax Workload
VO2 = HR x SV x AVO2diff
what happens to each?
NC VO2
decrease HR
increase SV
NC AVO2diff
Max Workload
VO2 = HR x SV x AVO2diff
what happens to each?
Increase VO2
NC (sometimes decrease) HR
increase SV
Increase AVO2diff
MAP Training Adaption
small decrease at rest or during exercise
Blood pressure Training Adaption
small decrease at rest
Total Peripheral Resistance and Afterload Training Adaption
increase capillarization , decrease TPR/afterload
Respiratory Rate (rest, submax and max) Training Adaption
rest: NC
Submax: decrease slightly (air remains in lungs longer)
Max: increase
Tidal Volume (rest, submax and max) Training Adaption
rest: NC
Submax: increase significantly
Max: increase
Anaerobic Threshold or OBLA or Ventilatory threshold
occurs at a higher percentage of VO2 Max
Mitochondria Training Adaption
increase number, size and membrane surface area
Aerobic enzymes in exercising muscle Training Adaption
increase krebs cycle enzymes (succinate dehydrogenase)
increase beta oxidation enzymes (carnitine acyltransferase)
increase electron transport enzymes (cytochrome oxidase)
Fatty Acid & Glycogen Utilization Training Adaption
increased utilization of beta oxidation pathways to produce ATP
decrease RER for any given submax workload
increase muscle glycogen storage
Resting Metabolic Rate Training Adaption
No appreciable change except when training induced increase in lean muscle mass occurs
Platelet Aggregation
fibrinolytic Activity
circulating catecholamines
resistance to pathological events
Platelet Aggregation: decrease
fibrinolytic Activity: increase
circulating catecholamines: decrease
resistance to pathological events: increase
fibrin leads to
blood clot
