Some cardiac drugs have effects on exercise. Which drugs specifically affect exercise and how? If you worked in cardiac rehab how would you deal with these effects (answer for each type of drug that affects exercise)?
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- Which of the following variables does NOT exhibit the same graphical response (plotted as a line graph) from rest towards maximal endurance (aerobic) exercise as that of VO2? a. Diastolic blood pressure b. Cardiac output c. Stroke volume d. Heart rate e. Systolic blood pressureWhat does the term VO2max refer to? Draw a figure showing changes in VO2 over increasing intensity of exercise. Include 1 or 2 workloads beyond the point of VO2max. Draw a dashed line across graph to show VO2max.If you were to administer a graded exercise test, which of the following listed below would you not expect to find? none of the answers are correct approximately linear increase in heart rate with increasing work rate approximately linear increase in systolic blood pressure with increasing work rate failure of diastolic blood pressure to increase with increasing work rate
- We have looked at exercise from a couple of perspectives now. Of the sets of physiological parameters below, which is a combination of one parameter that increases, one that decreases and one that doesn't change with vigorous exercise in that order? Tidal volume, Inspiratory reserve volume, stroke volume Forced vital capacity, heart rate, cardiac output Hematocrit, forced vital capacity, respiratory rate Stroke volume, expiratory reserve volume, forced vital capacity Heart rate, tidal volume, hematocritCycling is a form of exercise known to increase the heart rate. For cycling, four incline levels typically determine how much more intense you would like the workout to be. Level one is a walking pace, two is slightly more difficult, three is like cycling up a hill, and four is the most intense like cycling up a mountain. I will test the heart rate to see how it increases or decreases depending on each incline level. The moderate activity would be levels one and two, while the strenuous activity would be levels three and four. Before beginning the exercise, I will sit on the bike in a resting position to get my resting heart rate. Then I will start the stopwatch on the bike that records my cycling time, heart rate, and RPM (revolutions per minute). I will start at level one for five minutes and then record my heart rate after the session. I will rest for five minutes and then repeat the same process for each incline level (three more times; four in total). What may be the…A 65-year old man with heart failure is unable to climb a flight of stairs without experiencing dyspnea. After several years of therapy with carvedilol, captopril and furosemide, the therapeutic plan probably needs to change now. You empirically add digoxin to improve cardiac muscle contractility. Within 4 week he has a marked improvement in his symptoms. Which of the following best describes the main cellular action of digoxin that accounts for its ability to improve his cardiovascular function? Activates beta1-adrenergic receptors Facilitates GTP binding to specific proteins Increases mitochondrial calcium (Ca++) release Inhibits sarcolemmal Na/K-ATP-ase
- Why is exercises important especially for sick people?Exercising at 60% of the Heart Rate Reserve is classified as which of the following? Rest Low intensity aerobic activity Moderate intensity aerobic activity Hight intensity aerobic activityRead over the following article from the New York Times It describes a study in which researchers look at the changes in different types of molecules during exercise. For this question, complete the following: Briefly summarize the article Provide information about the study as to what they were looking at and any results or findings. Discuss your interest in a exercise system or response described in the article and outline how you would find more information on this topic.
- Aside from measuring the pulse, what other processes could have measured to determine the external and internal effects of exercise on the body?If someone is on a heart-rate limiting medication, what is the best way to track exertion to ensure safety? Karvonen method Just ask questions Measure lactate threshold Rating of perceived exertionLong-term athletes have many physiological changes EXCEPT 1.thicker cardiac muscle 2.lower end systolic volume 3.lower contractility 4.decreased resting heart rate