Hydration Flashcards
Purpose of water in body
- cushion/protection
- water and electrolyte balance (osmotic pressure)
- carries oxygen, nutrients, hormones, etc
- carries waste products away for excretion
- solvent for minerals, vitamins, AA, glucose
- functioning of our senses
- regulation of body temp
When does heat production increase
Higher BMR, infectious disease, shivering, exercise
60-80% of metabolic heat produced during exercise is converted
To heat (within the body)
How is heat removed from body
Radiation, conduction, convection and evaporation
In sport and physical activity what would impact our ability to sweat (evaporate water)?
- physical environment (heat, humidity)
- hydration
- intensity, duration, body size, training, fitness levels
- equipment (what wearing)
What is most essential nutrient
Water
Losses of water
Perspiration, respiration, urine, feces
What produces water
Metabolism
AI for water
Adult males= 3.7L
Adult females= 2.7L
UL for water
No UL set
What does water include
All foods, beverages and water
Anything liquid at room temp
How does metabolism produce water
Water is by product when break down macronutrients for energy
What is water held in body with
Protein, CHO and electrolytes
How much of body is made up of water
50-60%
What is water regulated by
Regulated by kidneys (euhydration or normohydration)
