AEROBIC TRAINING Module 4 Training Aerobic Training Activities

AEROBIC TRAINING Module 4 - Training

Aerobic Training Activities are of low to moderate intensity and of moderate to long duration ATP production during this type of exercise primarily involves the oxidative system However, recall oxygen debt Glycolysis is still breaking down glucose/glycogen to be used in the Krebs cycle and electron transport system (aerobic glycolysis) Primarily uses type I muscle fibers but type II fibers will be recruited if intensity is increased are duration becomes long

Acute Changes of Aerobic Training Increased cardiac output (both heart rate and stroke volume) Oxygen uptake increases Blood pressure increases (blood is diverted to working muscles) Minute ventilation increases (both tidal volume and breathing frequency) Oxygen difference between arteries and veins increases

Structural Adaptations of Aerobic Training Increased: Size of left ventricle chamber Total blood volume Capillary density Myoglobin content Aerobic enzyme activity

Functional Adaptations at Rest of Aerobic Training Increased stroke volume No change or slight increase in cardiac output No change in: Tidal volume av. O 2 difference No change or slight decrease in systolic and diastolic blood pressure Decreased: Heart rate Breathing rate

Functional Adaptations during Submaximal Exercise of Aerobic Training Increased: Stroke volume Tidal volume No change or increase in av. O 2 difference No change or decrease in: Cardiac output VO 2 Decreased: Heart rate Breathing rate

Functional Adaptations during Maximal Exercise of Aerobic Training Increased Stroke volume Cardiac output Breathing rate Tidal volume av. O 2 difference Maximal oxygen uptake No change or slight decrease in heart rate Slight decrease of systolic and diastolic blood pressure

Table 6. 1 (continued)

Table 6. 1 (continued)