Heat acclimatisation
- Created by: Molly Hemeter
- Created on: 28-03-16 20:04
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- Heat acclimatisation
- Cold conditions
- Need to maintain optimum temp
- Additional clothing- drag, extra weight, sweating, dehydration
- Cold decreases- flexibility, power, speed, reaction time
- Hot conditions
- Need to solve problem of dissapating heat
- Humid heat- rain forest, high humidity= sweating is less effective and less evaporation. overheating
- Dry heat- desert, sweat easy so don't notice fluid loss. dehydration
- Acclimatisation= getting used to environmental factors which influence preparation and competition
- Ergogenic aids for cooling
- Ice vests
- Ice baths pre sport (not for sprint and power)
- Ice towel around neck E.G. Andy Murray
- Ice slurry drinks
- Acclimatisation
- Recovery pump system (post sport)
- Notes
- 14 days for heat acclimatisation
- Higher VO2 max= quicker adaptaion
- Tolerance to heat
- No heat related illnesses
- Heat Syncope- Fainting, vascular shunting of blood to skin to cool down, body collapses to get head and heart to same level
- Heat cramps- cramping of muscles, sue to salt loss/sodium depletion
- Heat exhaustion-inability to perform in hot conditions, headache, dizziness, fatigue, diarrhoea, nausea, vomiting, syncope, heat cramps, etc
- Same level of performance as cooler temp
- First 5 days
- Plasma volume expands
- Increase in plasma proteins and electrolytes (NA and CL)
- More efficient and improved CV function
- More oxygen to musces and active muscles
- Adaptations
- Losing less NA and CL in sweat= reduced cramps
- produce sweat at earlier/ lower temp
- Easier to stay cool vs get cool
- More blood to surface to cool and more to working muscles
- Getting back to normal
- Revert back after 2-4 weeks
- First to develop= first lost
- Higher VO2/ fitter you are= more slowly you lose adaptations
- Cold conditions
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