H2Owesome Round III

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H2Owesome Round III

• Alex, Michael, Kelsey

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Importance of H2O

• Regulation of body temperature
• Allows for cell growth and reproduction
• Carries nutrients to cells
• While carrying waste away
• Lubricates joints
• Acts as shock absorber for vital organs

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Importance of H2O

• But wait, More!!!
• delivers oxygen to cells
• Increases and decreases blood viscosity
• Major component in all body parts and cells
• Most Importantly Its better than Gatorade
• - The Waterboy

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Growth and Maturation

• Growth
• CHANGE in size
• Either as a whole or the sum of the parts
• NOT necessarily an increase in size
• Maturation
• The process of becoming mature or progress toward
  the mature state
• The process of becoming an adult

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Fat-Free Mass
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Fat-Free Mass

• Chemical Maturity
• The point at which the concentration of water,
  protein and minerals becomes comparatively
  constant in the fat-free cell is named the point
  of chemical maturity of the cell.
• Maturity is the process of attaining adult tissue
  function, quality and composition
• Fat-free mass increases in solid components,
  replacing the water component
• Resulting in an increase in body density

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Total Body Water

• Total Body Water (TBW) follows a growth pattern
  like that of stature and weight
• Rapid increase during infancy
• Gradual increase during adolescent
• Plateau at chemical maturity
• Males have greater TBW then Females across the
  age range
• TBW reaches a plateau for females sooner than it
  does for males

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Total Body Water

• TBW begins to plateau during the ages of early
  adulthood
• These levels are maintained throughout the adult
  life
• Until we reach older adulthood (gt65years)
• Fat-free mass then begins to decline
• Including TBW

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Increasing/Decreasing Quantity

• Sources of Water
• Liquids (ex.-water)
• Food
• Metabolism

• Water Output
• Urine
• Feces
• Skin (sweat)
• Expired air

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Increasing/Decreasing Quantity
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Increasing/Decreasing Quantity

• In order to increase the quantity of water in the
  body
• We need to our fluid intake
• Increase foods in water
• (fruits veggies)
• Decrease foods in sodium
• With the exception of Chipotle (lets be real)
• Avoid hot/humid environmental conditions

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Peak functional/Dysfunctional levels

• Average sedentary adult in a neutral environment
  requires about 2.5L of water daily
• However, this can change based on activity level
• Exercise physiology literature confirms the need
  to consume fluid before and after physical
  activity
• A decrease in TBW can have negative influences on
  physical performance

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Peak functional/Dysfunctional levels

• Fluid loss coincides with the following five
  factors
• Decreased plasma volume
• Reduced skin blood flow for a give core
  temperature
• Reduced stroke volume (SV)
• Increased near-compensatory heart-rate
• General deterioration in circulatory and
  thermoregulatory efficiency in exercise

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Summary

• Water is critically important to the human body
  and peak physiological function
• Water is also extremely important in terms of
  physical performance in physical activity,
  exercise and sport
• Dehydrations causes a decrease in physical
  performance
• So drink before, during if need be and after
  exercise

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Summary

• In Absolute terms TBW increases throughout
  childhood and adolescents
• In Relative terms () Water decreases as it is
  replaced with more solid fat-free components
  throughout childhood and adolescents
• Water levels off in adulthood and then begin to
  decrease as age increases
• Older adulthood

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References

• McArdle, W., Katch, F., Katch, V.
  (2015). Exercise physiology Energy, nutrition,
  and human performance (8th ed.). Philadelphia
  Lippincott Williams Wilkins.
• Malina, R., Bouchard, C., Bar-Or, O.
  (2004). Growth, maturation, and physical
  activity. Champaign, Ill. Human Kinetics Books.
• Laurson, K. (2015). Lecture. Children and
  Adolescents at Illinois State University, Normal,
  IL.