Cardiorespiratory Adaptation Flashcards
Best way to evaluate cardio respiratory capacity is through a __________
VO2 max test (Lab)
- Measures how much O2 is used by the body
– ml/O2/kg/min - Does NOT measure sport performance
If adaptations are occurring, VO2 max will rise, this will lead to:
– _____________ and ______________
Increased oxygen transport, oxygen utilization by the muscles
Fick Equation (O2 used): ________________
VO2 = SV x HR x a-vO2 difference
Why does aerobic performance improve with training? (identify 6 specific training adaptations in your answer)
- Aerobic performance improves with training b/c of a combination of cardiovascular, respiratory, and others (muscle, metabolic, psychological) factors that adapt over time. Some of those being…
1. Increased blood volume(Cardiovascular) - ## Pulmonary Ventilation(respiratory)
- Cappilarization
- Lactate threshold(metabolic)
- Heart size
- -
Also important note:
– Maximal Oxygen Consumption (VO2 max)
– Increases with training
Cardiovascular adaptations
1. Blood volume
2. Capillarization
3. Heart size
4. Stroke volume
5. Heart rate
6. Cardiac output
Respiratory adaptations
1. Pulmonary Ventilation
muscle adaptations:
1. muscular endurance:
- Increased capillarization
* Easier access to blood
- Increased mitochondria
- increased myoglobin
- Increased oxidative enzymes
Metabolic adaptations
1. Lactate Threshold – Increases
* Improved “buffering” capacity by the liver
– Cori Cycle enzymes increase
* And, as aerobic system becomes more efficient, it can remain the predominant energy system longer, which means less lactate at low – moderate intensities
Psychological:
- motivation
Explain 6 factors (ie. 3 CV, 1 Resp, 2 other) that a naturally gifted aerobic athlete may have that pre- disposes them to doing well in aerobic activities
6 factors that a naturally gifted aerobic athlete could have that may help them bee pre disposed to doing well in aerobic activities are:
3 CV
-
-
-
1 resp
-
2 other
- genetics, gender, age, or training program