Cardiac Output Stroke Volume Red Blood Cells and Plasma Volume Heart Rate Random
100
True
True or False: Cardiac output matches the amount of oxygen consumption for a given exercise intensity
100
False
True or false: The Frank Starling mechanism decreases the force of contraction generated within the heart
100
True
True or false: Hematocrit typically decreases with intense training
100
False
True or false: Resting heart rate increases with aerobic training
100
Oxygen
What is carried in the blood that the muscle needs?
200
False
True or false: Sub-maximal cardiac output increases with aerobic training
200
False
True or false: The average stroke volume of a trained athlete at rest is 50-70 ml/beat
200
True
True or false: the turnover rate of RBC's is often higher in aerobically trained athletes
200
True
True or false: Heart rate recovery is faster for individuals who are aerobically trained
200
Increased capillarization, recruitment of existing capillaries, better redistribution from inactive organs, and increased total blood volume
Name 2 of the 4 mechanisms for improving blood flow to active muscle
300
14-20 L/min
What is the average cardiac output max for an untrained aerobic athlete?
300
True
True or false: larger people have larger hearts and greater blood volumes, and thus have higher stroke volumes
300
False
True or false: Oncotic pressure decreases as a result of the plasma protein concentration increasing
300
True
True or false: at given workloads, aerobically trained hearts do not have to work as hard
300
less than 60 bpm
Bradycardia is approximately how many beats per minute?
400
20-35 L/min
What is the average cardiac output max for a trained aerobic athlete?
400
Increases, decreases
End diastolic volume ______ , while end systolic volume ______ .
400
Albumin
What is the major plasma protein that reabsorbs water from the interstitial fluid?
400
False
True or false: Heart rate recovery is a great direct index of cardio-respiratory fitness
400
Elevated parasympathetic/vagal tone
Why is the resting heart rate lower for aerobically trained individuals?
500
Positive linear correlation
What is the correlation between cardiac output and VO2 max?
500
Rest, Sub-maximal, & maximal intensities
At what intensities does stroke volume increase with training?
500
Anti-diuretic hormone and aldosterone
Name 2 hormones that cause re-absorption of water and sodium in the kidneys
500
Sinoatrial node remodeling
What is the likely physiological reason why sub-maximal heart rates are lower in aerobically trained athletes?
500
Pathological bradycardia and training-induced bradycardia, sinoatrial node remodeling
Name at least two causes of bradycardia shared from chapter 11






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