Chapter6-12345
Quiz by hussein
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25 questions
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- Q1A 17-year-old high school cross-country runner has been training aerobically for six months in preparation for the upcoming season. Which of the following adaptations will occur in the muscles during that time?increased concentration of glycolytic enzymeshypertrophy of Type I fiberstransformation from Type I to Type II fibershyperplasia of Type II fibers60s
- Q2The amount of blood ejected from the left ventricle during each beat is theheart ratecardiac outputstroke volumea-vo2, difference60s
- Q3Which of the following does NOT normally increase during an aerobic exercise session?cardiac contractilitydiastolic blood pressurecardiac outputend-diastolic volume60s
- Q4The mean arterial pressure is defined as theaverage of blood pressure and heart rateaverage systolic blood pressure during exerciseaverage blood pressure throughout the cardiac cycleaverage of the systolic and diastolic blood pressures60s
- Q5Primary training adaptations of elite aerobically trained athletes include which of the following? I. increased maximal oxygen uptake II. decreased blood lactate concentration III. increased running economy IV. decreased capillary densityI I, and III onlyI and III onlyII and IV onlyII, III, and IV only60s
- Q6Highly conditioned endurance athletes commonly have resting heart rates that range from ______ beats per minute.55-6570-8040-6060-7260s
- Q7Which of the following refers to the movement of gas from areas of high concentration to low concentration?• ventilation• osmosis• C02 transport• diffusion60s
- Q8Which of the following is TRUE about events that occur during aerobic exercise?• Breath frequency decreases.• Large amounts of oxygen diffuse from capillaries to tissues.• Decreased levels of C02 move from the blood to the alveoli.• Minute ventilation decreases.60s
- Q9The greatest level of C02 removal is through water in the form of -------• bicarbonate• sulfate• hydrate• EPO60s
- Q10Altitude hypoxia is associated with which of the following?• hyperplasia• decreased submaximal heart rate• hyperventilation• increased blood viscosity60s
- Q11Which of the following statements is FALSE?• An acute response to aerobic exercise is a decrease in diastolic blood pressure.• The Fick equation expresses the relationship between stroke volume, oxygen uptake, and arteriovenous oxygen difference• Stroke volume refers to how much blood is ejected in one heart beat.• A MET is resting oxygen uptake estimated at 3.5 ml of oxygen per kilogram body weight per minute60s
- Q12Which of the following is NOT an adaptation to aerobic endurance training?• more efficient locomotion• faster lactic acid removal• increased tidal volume• higher energy expenditure60s
- Q13The infusion of EPO into an athletes blood to artificially increase red blood cell mass is known as which of these?• transfusion• blood doping• overreaching• supercompensation60s
- Q14The average blood pressure throughout the cardiac cycle is known as______• average capillary pressure• mean arterial pressure• diastolic blood pressure• mean venous pressure60s
- Q15How long does it take for an athletes heart rate and cardiac output to return to normal at a given altitude?• 14-20 days• 3-5 days• 5-10 days• 10-14 days60s