Flashcards
WCC VCE PE: Aerobic Chronic Adaptions
Flashcards do conjunto (21)
- 1Pulmonary diffusion RESPIRATORYPulmonary diffusion will increase. More O2 is diffused from the alveoli to the capillaries, resulting in more O2 being delivered to the working muscles
- 2Ventilation RESPIRATORYV=TVxRR
Ventilation will increase @ max intensities due to an increase in Tidal Volume (volume per breath)
@ rest and sub-max a slight decrease due to increased pulmonary diffusion - 3Tidal volume RESPIRATORYUnchanged at rest.
Increased at Sub-max and max intensities.
Leads to more air being breathed in per breath and more O2 being diffused into the capillaries - 4Decreased O2 cost to the ventilatory muscles RESPIRATORYThe Intercostal muscles and Diaphragm are more efficient in their contractions and require less O2.
More O2 can be utilised at the working muscles - 5Stroke Volume CARDIOVASCULARIncreases at all intensities.
Results from the increased volume of the left ventricle, causing HR to be lower at rest & sub-max.
Leads to more blood being circulated around the body @max intensity, meaning more O2 being delivered to the working muscles - 6Faster recovering heart rate CARDIOVASCULARWhen aerobically trained, an athlete will return to their resting heart rate faster, due to their improved ability to deliver O2 to the working muscles and the decreased reliance on the Anaerobic Glycolysis ES, resulting in the build-up of less Metabolic by-products
- 7Capilarisation at the muscles (slow-twitch) CARDIOVASCULARCapillary density will increase in the muscles, resulting in a greater surface area and more gaseous exchange (increased a-v02 diff) occurring.
(More O2 enters the muscles) - 8Increased Blood Volume CARDIOVASCULARDue to an increase in RBC's (hemoglobin and Plasma levels.
More O2 can be transported to the working muscles. - 9Increased Red Blood Cell (RBC) count CARDIOVASCULARThis also means that there is more hemoglobin in the blood stream. This increases the O2 carrying capacity of the blood, resulting in more O2 being delivered to the working muscles
- 10Decreased systolic blood pressure @ rest & sub-max intensities CARDIOVASCULARResults in long term health benefits, with less pressure being exerted on the artery walls
- 11Oxidative enzymes MUSCULAROxidative enzymes increase.
Oxidative enzymes result in the breakdown of glycogen and fats at a faster rate.
Will lead to an increase in a-vo2 difference - 12Myoglobin MUSCULARIncreased Myoglobin
Myoglobin carries O2 within the muscle cell. The more myoglobin present, the increased opportunity to breakdown fuels aerobically.
Will lead to an increase in a-vo2 difference - 13Mitochondria MUSCULARIncreased size and number and surface area of Mitochondria. They are the power stations of the cells. The more we have, the greater our capacity is to break down fuels (CHO, Fats) to produce ATP
- 14a-vO2 difference MUSCULARThe a-vO2 difference will increase.
Our muscles have a greater capacity to diffuse more O2 from our capillaries (due to increase in myoglobin, mitochondria & oxidative enzymes), resulting in a greater difference in O2 concentration between the arterioles and venules - 15Triglyceride stores MUSCULARIncreased triglyceride (fat) stores in the muscle, means that we have a greater potential to produce ATP using O2.
- 16Glycogen stores MUSCULARIncreased glycogen (CHO) stores, means that we have a greater capacity to produce ATP and maintain higher intensities within the Aerobic training zone (70-85% max HR).
- 17Glycogen sparing MUSCULARAs our body becomes more efficient at delivering O2 to the working muscles, we will be able to utilise a higher % of fats at sub-max intensities. This means our glycogen stores will remain higher, allowing us to work at higher intensities at a later stage in the event. Hence increasing our ability to glycogen spare.
- 18Cardiac Output (Q) CARDIOVASCULARCardiac Output will remain unchanged at rest and sub-max.
Will increase at maximal intensity.
Q=HRxSV
Increase is due to an increase in SV.
HR will be lower at rest and sub-max but remain unchanged at max - 19VO2 (Oxygen consumption) RESPIRATORY, CV, MUSCULARUnchanged or decrease @ rest and sub-max
Increased at max (VO2 max)
Refers to the amount of O2 the body can uptake and utilise for ATP resynthesis per minute.
Can be measured as absolute or relative.
All adaptations that increase O2 supply to the muscles aid in this increase. - 20Lactate inflection point (LIP) RESPIRATORY, CV, MUSCULARLIP will increase allowing the athlete to work at a higher intensity without accumulating lactate due to increased ability to resynthesise ATP with the aerobic energy system
- 21Aerobic Training MethodsContinuous
Fartlek
HIIT
Long-Interval
Circuit*
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- Descrição
- These flashcards explain how each of the chronic adaptations to an aerobic training program will lead to improved performance in an athlete.
- Criado por
- Tim Hodge
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