Endurance Performance Flashcards
What is vo2 max
The maximum amount of oxygen the body can consume and utilise during exercise
What are the main physiological factors affecting vo2 max
1.oxygen delivery
2.oxygen carrying capacity
3.oxygen extraction
What is critical power
The highest power output that can be sustained without fatigue due to the depletion of anaerobic energy reserves
How does cp relate to endurance performance
It determines the upper limit for tolerable non fatiguing muscle work l.
What happens when exercise is performed above critical power
Rapid depletion of anaerobic energy stores, leading to unsustainable effort
How does hiit training improve endurance
By boosting vo2 max, mitochondrial density, capillary function and cardiac output
What changes occur in the heart with endurance training
Increased stroke volume and improved ventricular compliance and blood volume
Why is altitude training beneficial
It increases Hemoglobin mass and oxygen carrying capacity enhancing vo2 max and endurance performance
What does the fick principle explain
The relationship between oxygen delivery and utilization in determining vo2 max
What is the significance of hemoglobin mass in endurance
Each gram of hemoglobin carries 1.34ml of oxygen, directly influencing oxygen delivery and vo2 max
How does lactate threshold relate to performance
It is the exercise intensity at which lactate begins to accumulate in the blood, a key determinant of endurance capacity
What are the intensity domains for endurance performance
1.moderate sustainable for hours
2.heavy sustainable for longer durations below lactate threshold
3. Severe above critical power, rapid fatigue onset
What determines sustainable percentages of vo2 max
Factors like mitochondrial density, capillary function and metabolic efficiency
What factors determine endurance performance
Vo2 max, critical power, lactate threshold, and training adaptions such as increased capillarity and mitochondrial density
How does power to weight ration influence endurance
Higher power to weight ratios correlate with better performance across endurance sports
