Select physiologic factors of the ventilation-aeration system that limit VO2max and aerobic performance. Select 3 correct answer(s) Tidal ventilation Minute ventilation Ventilation-perfusion ratio Hb-O2 affinity
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Select physiologic factors of the ventilation-aeration system that limit VO2max and aerobic performance.
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Tidal ventilation |
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Minute ventilation |
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Ventilation-perfusion ratio |
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Hb-O2 affinity |
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- just final answer Select physiologic factors of the ventilation-aeration system that limit VO2max and aerobic performance. Select 3 correct answer(s) Tidal ventilation Minute ventilation Ventilation-perfusion ratio Hb-O2 affinityAfter light exercise, the oxygen consumed in recovery is approximately equal to the oxygen deficit, which is the amount of additional oxygen that would have been consumed had oxygen consumption reached steady state immediately. How is the oxygen consumed in recovery used?describe the relationship between oxygen consumption & oxygen uptake, and between carbon dioxide production & carbon dioxide unloading? please describe in detail.
- Describe the changes in barometric pressure, PO2, and air density with increasing altitude. Include an explanation of why maximal aerobic power decreases at altitude and what effect this has on performance in long-distance races. What recommendations would you have for a long-distance runner about training at altitude? What benefits and limitations are associated with altitude training? How would you recommend the athlete work around the limitations?Explain how oxygen and carbon dioxide are exchange in both the lungs and tissues of the body. Use oxygen dissociation curvePlease discuss below how the relaxation of smooth muscle will alter lung capacities, with special attention given to how relaxation will impact airway diameter, airway resistance, and oxygen uptake (inspiration/inhalation)
- Would the respiration rate be different for a person who had just exercised instead of sitting in the lab? a. No, the respiration rate would be the same. b. Yes, the respiration rate would be slower because the exercise slows respiration and oxygen uptake. c. Yes, the respiration rate would be faster since the person needed more oxygen while exercising.A soccer coach is seeking your advice about using a tank of oxygen on the sidelines so players might breathe from it during time outs or when they come off the field. Provide 3 mechanisms to explain/justify your answer to the coach. Consider the following in your answer. 98% O2 Hb saturation is achieved with each breath. The other way for oxygen to be carried to muscle would be dissolved in blood. This is minimal and still doesn’t affect Hb saturation Pulmonary ventilation is not considered to limit aerobic capacity A higher breathing rate actually helps to eliminate CO2 and therefore raise pH CO2 transport in blood also involves buffering H+ forming bicarbonate HCO3. On exhalation the H disassociates and forms water – again helping to maintain pHWhich of the following combinations would all result in an increase in stimulation to breathe? Group of answer choices decrease in PCO2 : increase in H+ : decrease in PO2 increase in PCO2 : increase in H+ : decrease in PO2 decrease in PCO2 : decrease in H+ : decrease in PO2 increase in PCO2 : decrease in H+ : increase in PO2 decrease in PCO2 : decrease in H+ : increase in PO2
- The unit used to compare the rate of oxygen consumption is a ______________________. REE MET PAL REPState Boyle’s Law and relate this law to the specific sequence of events (muscle contractions/relaxations and pressure/volume changes) causing inspiration and expiration.The below graph shows both ventilation and blood lactate concentration as a function of total oxygen consumption during a bout of exercise. Explain the relationship between these two variables and why these two measures (ventilatory threshold and lactate threshold) tend to occur around the same level of exercise intensity.