ENVIRONMENTAL CONDITIONS - ALTITUDE 2
No description yet. This curated deck is ready for daily study.
Card preview (18)
Define Altitude acclimatisation
Describes the improved physiological response to altitude hypoxia
List all 3 methods of Altitude acclimatisation
• Live high, Train low • Live high, Train high • Live low, Train high
Define Method 1 – Live high, train low
This involves daily intermittent exposure to artificial altitude environments whilst maintaining normal training intensities
Explain why Method 1 – Live high, train low is more beneficial
This method is more beneficial as it allows players to maintain their training intensity while benefiting from altitude exposure and its associated physiological adaptations.
Define Method 2 - Live high, train high
Athletes live at altitude to achieve the physiological benefits of a decrease in O2 concentration and train at altitude to obtain adaptations
On average, what altitude and for how long should the person live and train for
• 2000-3000m above sea level • around 3-4 weeks
As a results what and why occurs from this method to the athlete
• Acute mountain sickness often occurs due to the body coming to terms with the hypoxic stress placed on the body
As a result of this sickness what is the athlete usually required to do then placing even more of what on the athlete
• Athlete is required to stay longer, this then placing logistical and financial stress on the athlete
Over a prolonged period what is reduced
• Reduced benefits in performance due to reduced training intensity
Define Method 3 – Live low, train high
Athletes live at sea level but train in hypobaric chambers or altitude tents to simulate a hypoxic environment.
Why is Method 3 – Live low, train high is a skeptical topic
There is no evidence that this method effectively gains the chronic adaptations achieved by using the “live high, train low” method.
List at least 4 Acute adaptations (first 24 hrs) in Altitude acclimatisation
• Increased Respiratory rate • Increased Tidal Volume • Increased Nausea/headaches/dizziness • Increased HR and Stroke Volume during rest and submaximal exercise • Decrease plasma volumes to increase con. of hemoglobin in the blood
List at least 4 Chronic adaptations (72 hrs+)
• Increased Haematocrit • Increased Mitochondria • Increased aerobic enzymes • Increased capillaries • Increased myoglobin
What happens after 7 days after altitude
Hyperventilation is not required at sea level as more oxygen is available in the atmosphere.
What happens after After 2-4 weeks after altitude
• Haemoglobin and haematocrit levels are back to normal • Increased Mitochondria, capillary and enzyme levels are thought to last longer, provided training is maintained
At sea level what is the barometric pressure of the air
760mmHg
At Mexico City what is the barometric pressure of the air
585mmHg
At Mt. Everest what is the barometric pressure of the air
231mmHg