Physiology of training

The principle that training adaptations are lost when training stops is called:

• Individual differences

• Reversibility

• Specificity

• Progression

To improve VO2 max, exercise should typically be performed:

• 1-2 times per week

• ≥3 times per week

• Daily without rest

• Once every two weeks

On average, endurance training increases VO2 max by:

• 5-10%

• 15-20%

• 25-30%

• 35-40%

Quizzz 4 Genetics determines approximately what percentage of VO2 max in sedentary adults?

• 20%

• 35%

• 50%

• 75%

Endurance training increases stroke volume primarily by:

• Decreasing plasma volume

• Increasing afterload

• Increasing preload

• Decreasing contractility

Increased capillarization in trained muscles results in:

• Slower oxygen diffusion

• Improved oxygen delivery and waste removal

• Decreased mitochondrial volume

Which adaptation does NOT occur with endurance training?

• Increased capillary density

• Increased mitochondrial volume

• Increased fast-twitch fiber percentage

• Increased stroke volume

Training reduces heart rate during exercise by:

• Increasing sympathetic nervous system activity

• Decreasing stroke volume

• Improving muscle homeostasis

• Reducing capillary density

Training improves oxygen delivery by:

• Increasing capillary density

• decreasing venous return

• decreasing plasma volume

• decreasing stroke volume

The breakdown of damaged mitochondria is called:

• Apoptosis

• Mitophagy

• Glycolysis

• β-oxidation