to Welcome HN 705 N
Tell me about you
On index card:
Name Majors, degrees, intended graduation Your career goals What you would like to learn from this course Phone number if we want a phone tree
About the course
About me Carmen Readings Knowledge
Book smarts Literature Clinical practice Personal experiences
1
Why exercise and nutrition?
Major diseases influenced by nutrition and physical activity:
cardiovascular disease diabetes obesity bone density mental health
I am convinced our physical inactivity http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/index.htm and food availability is killing us!
2
What will 2015 be?
During the past 20 years there has been a dramatic increase in obesity in the United States. In 1985, only a few states were participating in the CDC's Behavioral Risk Factor Surveillance System (BRFSS) and providing obesity data. In 1990, 4 states had obesity prevalence rates of 15 19 percent and no states had rates at or above 20 percent. In 1995, obesity prevalence in each of the 50 states was less than 20 percent. In 2000, 28 states had obesity prevalence rates less than 20 percent. In 2005, only 4 states had obesity prevalence rates less than 20 percent, while 17 states had prevalence rates equal to or greater than 25 percent, with 3 of those having a prevalence equal to or greater than 30 percent (Louisiana, Mississippi, and West Virginia).
Physiology as relates it to nutrition:
General systems
nervous endocrine respiratory cardiovascular digestive (and accessory organs) muscular (and nervous)
Nervous System
Sensory input Central Nervous system Peripheral nervous system
Motor output
3
Endocrine
Each gland secretes hormones that affect our metabolism Is there a missing gland in this picture?
Respiratory
Oxygen delivery is the basis for metabolism and options How many factors can you list to influence how much oxygen gets delivered to the muscles?
Cardiovascular
The transport system Function is affected by long term lifestyle
4
Gastrointestinal
Digestion Absorption
Muscular
Structural components and function
motor unit, neural-chemical-electrical, sarcoplasmic reticulum system, structural proteins and sliding filament, ATP
Energy reserves
Carb Protein Fat
Energy systems
anaerobic or nonoxidative
ATP-PC glycolytic or lactate
glycogenolysis
aerobic or oxidative Metabolism
5
Nutrition
Carbohydrates Fats Proteins Vitamins Minerals Fluids
Carbohydrates
simple, complex absorption transport & storage metabolism
Fats
triglycerides (fatty acids and glycerol) absorption transport & storage metabolism
6
Proteins
amino acids absorption transport & storage metabolism
Vitamins
water vs. fat soluble absorption transport & storage metabolism
Minerals
bioavailability absorption transport & storage metabolism
7