1. Illinois State University H2Owesome Round III Alex, Michael, & Kelsey

2. Illinois State University Regulation of body temperatureRegulation of body temperature Allows for cell growth and reproductionAllows for cell growth and reproduction Carries nutrients to cellsCarries nutrients to cells –While carrying waste away Lubricates jointsLubricates joints Acts as shock absorber for vital organsActs as shock absorber for vital organs Importance of H2O

3. Illinois State University Importance of H2O But wait, More!!!:But wait, More!!!: delivers oxygen to cellsdelivers oxygen to cells Increases and decreases blood viscosityIncreases and decreases blood viscosity Major component in all body parts and cellsMajor component in all body parts and cells Most Importantly: Its better than Gatorade Most Importantly: Its better than Gatorade - The Waterboy - The Waterboy

4. Illinois State University Growth and Maturation Growth:Growth: –CHANGE in size Either as a whole or the sum of the partsEither as a whole or the sum of the parts NOT necessarily an increase in sizeNOT necessarily an increase in size Maturation:Maturation: –The process of becoming mature or progress toward the mature state “The process of becoming an adult”“The process of becoming an adult”

5. Illinois State University Fat-Free Mass

6. Illinois State University Fat-Free Mass Chemical Maturity: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 compositionMaturity 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

7. Illinois State University Total Body Water Total Body Water (TBW) follows a growth pattern like that of stature and weightTotal 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 rangeMales have greater TBW then Females across the age range TBW reaches a plateau for females sooner than it does for malesTBW reaches a plateau for females sooner than it does for males

8. Illinois State University Total Body Water TBW begins to plateau during the ages of early adulthoodTBW begins to plateau during the ages of early adulthood These levels are maintained throughout the adult lifeThese levels are maintained throughout the adult life Until we reach older adulthood (>65years)Until we reach older adulthood (>65years) Fat-free mass then begins to declineFat-free mass then begins to decline –Including TBW

9. Illinois State University Increasing/Decreasing Quantity Sources of Water:Sources of Water: –Liquids (ex.-water) –Food –Metabolism Water Output:Water Output: –Urine –Feces –Skin (sweat) –Expired air

10. Illinois State University Increasing/Decreasing Quantity

11. Illinois State University Increasing/Decreasing Quantity In order to increase the quantity of water in the bodyIn order to increase the quantity of water in the body –We need to our fluid intake –Increase foods in water (fruits & veggies)(fruits & veggies) –Decrease foods in sodium With the exception of Chipotle (lets be real)With the exception of Chipotle (lets be real) –Avoid hot/humid environmental conditions

12. Illinois State University Peak functional/Dysfunctional levels Average sedentary adult in a neutral environment requires about 2.5L of water dailyAverage 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 activityExercise physiology literature confirms the need to consume fluid before and after physical activity A decrease in TBW can have negative influences on physical performanceA decrease in TBW can have negative influences on physical performance

13. Illinois State University Peak functional/Dysfunctional levels Fluid loss coincides with the following five factors: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

14. Illinois State University Summary Water is critically important to the human body and peak physiological functionWater 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 sportWater 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 exerciseSo drink before, during if need be and after exercise

15. Illinois State University Summary In Absolute terms – TBW increases throughout childhood and adolescentsIn 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 adolescentsIn 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 increasesWater levels off in adulthood and then begin to decrease as age increases –Older adulthood

16. Illinois State University 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.