KNH 188 Exam 1 Practice Questions & Answers, Physical Activity and Health, Rated 100%

KNH 188 Exam 1 Practice Questions & Answers, Physical Activity and Health, Rated 100%
What are the 5 pillars of public health? - 1. epidemiology
2. environmental health
3. health promotion/education
4. health administration/policy
5. biostatistics
What is public health? - health of a population as a *whole*
What is chronic disease? - illness/disease that persists over time (ex. coronary
artery disease, cancer, diabetes)
What is Epidemiology? - studying the causes and effects of diseases in order to
reduce risk factors
What is Kinesiology? - 1. exercise physiology
2. movement science
3. sports and exercise psychology
London Bus Conductors & Postal Workers - Dr. Jeremy Morris:
-studied heart disease and inactivity with london bus drivers and postal workers
-found that postal workers have reduced risk of heart disease
Who is Dr. Ralph Paffenbarger? - -student of Dr. Morris
-furthered Morris' study by determining how much activity is necessary to reduce
risk of heart disease
Who is Dr. Steven Blair? - -conducted *Aerobic Longitudinal Study*
-"the more inactive you are, the higher your risk of death"
What is Physical Activity? - any physical movement that increases energy
expenditure above resting
What are the benefits of activity? - 5,000 steps per day = heart health
10,000 steps per day = manage weight
What does FITT stand for? - Frequency: how often
Intensity: how hard
Time (duration): how long
Type: mode
What are the exercise principles? - -progressive overload: gradual increase of
demand on muscles
-specificity of training:
making adaptations to to a specific group of muscles/muscle systems
-variability: mix up workouts to avoid burnout
-reversibility: what you don't use you lose
What is cardiovascular endurance? - cardio-respiratory-vascular-muscular
endurance
(heart-lungs-blood vessels-muscles)
What is caloric expenditure? - how many calories you burn
What is gross energy expenditure? - the number of calories burned during activity
combines with number of calories burned at rest
What is net energy expenditure? - calories burned during exercise/activity
What is Metabolic Equivalent (MET)? - measurement of how much oxygen and
energy your body uses at rest
What is accumulation? - how much activity you can accumulate over the course of
a day
What is dose response? - how much exercise is needed to benefit your health/body
What is Aerobic Metabolism? - Muscles cannot contract repeatedly without:
-Oxygen - provided by the CV system
-Energy - provided by food (CHO and fat)
What is VO2? - the amount of O2 the body can take in and use for work
(mL/kg/min)
What is heart rate? - how many times your heat beats (min)
What is stroke volume? - amount of blood pumped by the heart per heart beat
What is cardiac output? - amount of blood pumped from heart per beat per minute
(HR x Stroke Volume)
What is oxygen extraction? - muscles ability to remove O2 from blood and use it
for energy
(CaO2 - CvO2 : content of arterial blood - content of venous blood)
Functions of arteries and veins - arteries: carry O2 rich blood *away* from heart
veins: carry O2 poor blood *back to* the heart
What is the Ficke Equation? - VO2 = HR x SV x (CaO2 - CvO2)
What is steady state? - the body's generation of oxygen and energy meets the
muscle's demand for it
What is oxygen deficit? - the first few minutes of exercise (these "symptoms" exist
until steady state is reached)
What is Oxygen Debt? - -happens 2-3 minutes after exercise

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