BPK 142 Lecture Notes - Lecture 12: Vo2 Max, Cardiac Output, Heart Rate

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Maximal aerobic power: direct measurement of maximal aerobicpower, physiological determinants of vo2max. The maximum oxygen uptake provides important information on the capacity of the oxygen transport system. Test protocols: the test protocol should exceed 6 minutes but be less than approximately 15 min. This is test and protocol dependent: blood lactate levels should be 8 millimoles/liter or greater, 3-5 minutes post exercise. Factors affecting maximal aerobic power: mode of exercise. Since local muscle capillarization and aerobic enzyme levels are important determinants of vo2 max. , athletes should ideally be tested in the mode of exercise used in their sport, i. e. , rowers should be measured while rowing, cyclists while cycling, etc. In most subjects, the highest vo2max. values can be obtained during uphill treadmill running - 5-7% higher than on a bicycle ergometer - due to activation of a larger muscle mass on the treadmill.

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