Water
- Created by: joelharfield1
- Created on: 11-05-16 22:14
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- Water
- Functions
- Provides oxygen in regard to its importance for maintaining life
- Provides structural integrity to cells.
- serves as body's delivery and waste removal medium
- Blood plasma distributes nutrients, hormones, immune cells and oxygen
- Water balance
- Output
- Kidneys (Urine) (500-1000 ml)
- Skin (450-1900 ml)
- (Insensible and perspiration) volume of perspiration is 100 ml per day. In hot conditions, a person can lose 1 to 2 litres per hour
- Lungs (250-400 ml)
- Feces (100-200 ml)
- People with severe diarrhea can lose several liters of water per day in feces
- Input
- Food (600-700 ml)
- Drink (450-2400 ml)
- Metabolic (250-350 ml)
- Output
- Dehydration
- Condition resulting from negative balance
- Effects of dehydrations
- Leads to loss of blood volume which leads to decreased amount pumped around to working muscles
- Decreased blood flow to muscles means less oxygen been delivered and leads to poor performance
- Leads to extra heat and cv stress during exercise
- As little as 2-3% decrease in body weight caused by dehydration can result in body temperature and heart rate despite fact that exercise intensity remained the same
- Progressive increase in heart rate in absence of increase in intensity is known as cardiac drift
- Monitoring hydration levels
- Measuring bodyweight
- Urine colour
- Hyper - hydration
- hyponatremia
- rare condition resulting from dilution of sodium levels in body
- Water intoxication
- Condition resulting from excessive intake of water. End result can be clinical condition known as hypontremia.
- hyponatremia
- Recommend - ations for water intake
- men + women over age 19 = 3.7 l and 2.7 l of water per day
- males and females 14-18 y/o = 3.3 l and 2.3 l of water per day
- males and females 9-13 y/o = 2.4 l and 2.1 l of water per day
- males and females 4-8 y/o = 1.7
- practical guidlines
- athlete should be aware of his or her individual daily fluid needs and consume fluids accordingly
- Optimal hydration should stimulate urination approx every 1-2 hours
- Fluid can be obtained from milk, water, juices, coffee, tea and sports beverages
- Functions
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