KNES465-0101 Lecture 1 Flashcards
Health
“A human condition with physical, social and psychological dimensions, each characterized on a continuum with positive and negative poles”
Physical activity
“Any bodily movement produced by the contraction of skeletal muscle that increases energy expenditure above a basal level. Physical activity generally refers to the subset of physical activity that enhances health”
Exercise
“A subcategory of physical activity that is planned, structured, repetitive, and purposive in the sense that its objective is the improvement or maintenance of one or more components of physical fitness.
exercise is also progressive
Exercise training
“Physical activity performed during leisure time with the primary purpose of improving or maintaining physical fitness, physical performance or health”
Physical Inactivity
CDC doesn’t define it. So an exercise physiologist (Dr. Frank Booth) did:
“Physical activity levels less than those required for optimal health and prevention of premature death”
Functional Capacity
“ Ability of the body to maintain homeostasis within its narrow limits of survival in response to a specified stress”
Decreases with inactivity, age and/or disease
Factors that determine Fitness
- Physical activity
- Exercise
- Genes (limited)
Chronic vs. Acute Disease
- Slow in it’s onset and long
in it’s course - Swift in it’s onset and short in
course - Physical, mental and
economic toll of chronic
disease is more?
Cardiovascular risk factors associated with PA
hemostatic factors (agents that check bleeding)
hypertension - 130/80
traditional lipids
novel lipids
BMI
diabetes
Homocysteine - an amino acid that interacts with the B vitamins to help create proteins.
High homocysteine levels may mean a vitamin deficiency. Untreated, elevated homocysteine increases the risk of dementia, heart disease and stroke.
