Chapter 1 (PA, health, and chronic disease) Flashcards
What is physical activity (PA)?
- Movement by large muscles requiring energy
What is exercise?
- structured/planned PA
- usually results in some overload and leads to improved fitness
What is sedentary?
- Lack of PA
Improvements in health benefits depend on what?
- volume of PA
Define Dose of exercise
- volume of activity
Define Response of exercise
- health benefits
Metabolic Equivalent (MET) represents what?
- the amount of energy (O2) consumed at rest
Light activity MET level
<3 METs
Moderate activity MET level
3-6 METs
Vigorous activity MET level
> 6 METs
What is the recommended minimum amount of aerobic exercise?
- > 150 min/week if moderate intensity
- or >75 min/week if vigorous intensity
To further reduce disease risk what is the necessary amount of exercise?
- > the minimum
Cardiovascular disease is the general term for what?
- it is the general term that describes a disease of the heart or blood vessels
Cardiovascular disease causes what?
- reduced blood flow to the heart, brain, and body
what causes cardiovascular disease?
- build-up of fatty deposits inside arteries leading to hardening and narrowing of that artery (atherosclerosis)
Cardiovascular disease risk factors? (8)
- age
- family history
- hypercholesterolemia
- hypertension
- tobacco use
- diabetes or prediabetes
- overweight and obesity
- physical inactivity
What is the cause of coronary heart disease?
- ischemia
What is the effect of exercise on life expectancy?
- delay onset of chronic diseases
- reverse or limit effects of existing chronic diseases
- increases quality of life
- reduces disability rates
What is the effect of exercise on telomeres?
- regular exercise can increase telomere length
Elevated blood pressure
Systolic between 120-129
Stage 1 hypotension
Systolic between 130-139 OR
Diastolic between 80-89
Stage 2 hypotension
Systolic > or = 140 OR
Diastolic > or = 90
What type of exercises can lower blood pressure?
- all types of exercise
What is the mode of exercise prescription for hypertension?
- endurance activities supplemented by resistance exercises
What is the intensity of exercise prescription for hypertension?
- moderate to intensity
Duration of exercise prescription for hypertension?
- more then 30 minutes of continuous activity per day
Frequency of exercise prescription for hypertension?
- most days for aerobic
- 2-3 days for resistance
What is hypercholesterolemia?
- elevation of total cholesterol above 200
What is dyslipidemia?
- abnormal blood lipid ratio
What are lipoprotein classified by?
- thickness of the protein shell that surrounds the fat
Chylomicron transport fat from and to where?
- form the intestines
- to cells
VLDL transport fat from and to where?
- from the liver
- to cells and LDL
LDL transport fat from and to where?
- from VLDL
- to tissues
HDL transport fat to where?
- to the liver to be removed
How does cardiovascular exercise effect lipoproteins (HDL, LDL, and triglycerides)?
- increases HDLs
- decreases LDLs
- decreases LDLs
Tobacco is linked to what diseases?
- CHD
- Stroke
- Chronic obstructive pulmonary disease
Tobacco mainly causes what?
- cancer
What is type 1 diabetes and what causes it?
- Insulin is not produced
- autoimmune disease
What is type 2 diabetes and what causes it?
- Insulin does not work
- caused by obesity, diet, and lack of physical activity
Obesity threshold
- BMI of 30 or greater
BMI equation
- weight (kg) / height squared (m)
- weight (lbs) / height squared (in) x 703
Metabolic syndrome risk factors
- abnormal obesity
- hypertension
- insulin resistance
- dyslipidemia
Cancer risk factors
- gender
- tobacco and alcohol use
- unhealthy food choices
- physical inactivity
Osteoarthritis risk factors
- age
- gender (women)
- obesity
- past injury
Lower back pain risk factors
- age
- fitness
- BMI
Physical activity effect on cognitive performance
- increases cognitive performance