Transcript Altitude training

Altitude training
Altitude training
Learning Outcomes:
• All are able to discuss the benefits of fitness
training methods and explain what altitude
training is
• Most can understand the importance of
thermoregulation.
• Most are able to analyse the benefits and
drawbacks of altitude training to an athlete.
• Some can use this knowledge to answer an
examination question in detail.
Altitude training
• Homework:
– Complete 14 mark question on altitude training
– Complete examination question on
thermoregulation
– Complete notes and reading on periodisation
– REVISE FOR MOCK
Altitude training
• Starter activity – complete Training letter
choice activity
• Complete benefits of the different types of
training activity
Altitude training
What is it?
• Athletes chose to train at level normally over
2000m above sea level
• Usually for at least 30 days
• Three phases - acclimatisation
- primary training
- recovery
Altitude training
Who?
- Endurance athletes
- Athletes competing at altitude (e.g. World
Cups)
- altitude training
Altitude training
Why?
• Partial pressure of oxygen is lower (less
oxygen available)
Resulting in?
• Body struggles to produce required amounts
of energy
• This triggers physiological adaptations
• Body produces EPO (erythropoietin)
Altitude training
Immediate effects:
- Increase in breathing
- Increase in HR
Altitude training
Long Term effects (Advantages)
- Increased concentration of RBC’s
- Increased concentration of Hb/Myoglobin
- Increased capacity to carry O2
- Increase in blood viscosity
- Increased capillarisation
- Increased tolerance to lactic acid (delay OBLA)
Altitude training
Returning to Sea level
- Higher RBC count and Hb concentration
remain for 6-8 weeks.
- This benefits ability to carry oxygen for
endurance athletes
Altitude training
Hinders performance?
- Altitude sickness
- Lethargy
- Insomnia
- Train at same intensity is difficult/detraining may
occur/loss of fitness
- Dehydrated
- Psychological problems linked to travel/time
away from home
- Benefits lost quickly when back at sea level
Altitude training
Alternative methods
- Hypoxic tents/altitude tents/ oxygen tents
- Live High Train Low - most recent evidence
suggests that living at altitude, yet training at
sea level is the most beneficial
Altitude training – Mini Plenary activity
Elite athletes spend considerable time developing
their fitness, using a variety of methods, in order to
produce peak performance.
(a) (i) Explain why some athletes, such as marathon
runners, may choose to spend time training at
altitude.
(3 marks)
(ii) What are the potential problems associated with
altitude training?
(3 marks)
Altitude training
4 (a) (i)
1. Improved endurance/stamina/aerobic capacity/VO2 max;
2. Reduced concentration/partial pressure of oxygen at altitude;
3. Compensation through increased red blood cells/haemoglobin;
4. Erythroprotein;
5. Enhanced oxygen carrying capacity (on return to sea level) 3 marks
(ii)
1. Reduced pO2 – training very hard;
2. Loss of fitness/detraining effect;
3. Increased lactate production/accumulation;
4. Altitude sickness/weeks to acclimatise;
5. Solution – live at altitude and train at sea level;
6. Other physiological e.g. blood viscosity/psychological/social/environmental
factors. 3 marks
Thermoregulation during exercise
• Read hand outs and complete worksheet to
demonstrate understanding of
thermoregulation key terminology.
Plenary activity
• What part of the brain controls thermoregulation?
•
Hypothalamus
• What is the main job of the thermoregulatory centre?
•
Maintain the core temperature
• During exercise which mechanism is the most effective for
cooling?
•
Sweat evaporation
• What happens to the body if it gets dehydrated?
– Blood volume decreases, performance decreases (insufficient oxygen
available)
Altitude training
Learning Outcomes:
• All are able to discuss the benefits of fitness
training methods and explain what altitude
training is
• Most can understand the importance of
thermoregulation.
• Most are able to analyse the benefits and
drawbacks of altitude training to an athlete.
• Some can use this knowledge to answer an
examination question in detail.