KNH 188 Exam 1 Questions And Answers

KNH 188 Exam 1 Questions And AnswersWhat are the 5 pillars of public health? - Answer 1. epidemiology 2. environmental health 3. health promotion/education 4. health administration/policy 5. biostatistics What is public health? - Answer health of a population as a *whole* What is chronic disease? - Answer illness/disease that persists over time (ex. coronaryartery disease, cancer, diabetes) What is Epidemiology? - Answer studying the causes and effects of diseases inorder toreduce risk factors What is Kinesiology? - Answer 1. exercise physiology 2. movement science 3. sports and exercise psychology London Bus Conductors & Postal Workers - Answer 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? - Answer -student of Dr. Morris -furthered Morris' study by determining how much activity is necessary to reduceriskof heart disease ONLYSTUDENTS STORE 2025 ALL THE BEST ONLYSTUDENTS STORE 2 DO NOT COPYWho is Dr. Steven Blair? - Answer -conducted *Aerobic Longitudinal Study* -"the more inactive you are, the higher your risk of death" What is Physical Activity? - Answer any physical movement that increases energyexpenditure above resting What are the benefits of activity? - Answer 5,000 steps per day = heart health 10,000 steps per day = manage weight What does FITT stand for? - Answer Frequency: how often Intensity: how hard Time (duration): how long Type: mode What are the exercise principles? - Answer -progressive overload: gradual increaseof 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? - Answer cardio-respiratory-vascular-muscular endurance (heart-lungs-blood vessels-muscles) What is caloric expenditure? - Answer how many calories you burn ONLYSTUDENTS STORE 2025 ALL THE BEST ONLYSTUDENTS STORE 3 DO NOT COPYWhat is gross energy expenditure? - Answer the number of calories burned duringactivity combines with number of calories burned at rest What is net energy expenditure? - Answer calories burned during exercise/activityWhat is Metabolic Equivalent (MET)? - Answer measurement of how much oxygenandenergy your body uses at rest What is accumulation? - Answer how much activity you can accumulate over the courseof a day What is dose response? - Answer how much exercise is needed to benefit your health/body What is Aerobic Metabolism? - Answer Muscles cannot contract repeatedly without: -Oxygen - provided by the CV system -Energy - provided by food (CHO and fat) What is VO2? - Answer the amount of O2 the body can take in and use for work (mL/kg/min) What is heart rate? - Answer how many times your heat beats (min) What is stroke volume? - Answer amount of blood pumped by the heart per heart beat What is cardiac output? - Answer amount of blood pumped from heart per beat per minute (HR x Stroke Volume) What is oxygen extraction? - Answer muscles ability to remove O2 fromblood anduseit for energy ONLYSTUDENTS STORE 2025 ALL THE BEST ONLYSTUDENTS STORE 4 DO NOT COPY(CaO2 - CvO2 : content of arterial blood - content of venous blood) Functions of arteries and veins - Answer arteries: carry O2 rich blood *away* fromheart veins: carry O2 poor blood *back to* the heart What is the Ficke Equation? - Answer VO2 = HR x SV x (CaO2 - CvO2) What is steady state? - Answer the body's generation of oxygen and energy meetsthemuscle's demand for it What is oxygen deficit? - Answer the first few minutes of exercise (these "symptoms"exist until steady state is reached) What is Oxygen Debt? - Answer -happens 2-3 minutes after exercise -generate oxygen to reestablish what was lost in beginning of workout: *repayingtheoxygen deficit* -after-burn: still burning up energy post-exercise What terms mean the same thing? - Answer VO2 max = maximal aerobic power =maximal oxygen uptake = maximal aerobic capacity = maximal exercise capacity What is sub maximal VO2? - Answer cardiorespiratory or aerobic endurance belowamaximal effort How is VO2 related to CV health? - Answer higher VO2 = more available O2 more O2 = more energy