PA demands and exercise, health, moving Flashcards
(43 cards)
What is allostasis?
Adaptive process that maintains homeostasis through the production of mediators (cortisol, adrenaline etc.)
What are the 4 health related fitness components?
- Cardiovascular
- body composition
- Flexibility
- muscular fitness
What are the subtypes for cardiovascular fitness?
- Aerobic
- Anaerobic
What is aerobic power
The maximum rate of oxygen usage during a specified period usually during intense exercise, which uses large muscle groups for multiple minutes of exertion
What is aerobic capacity
Measures an individual’s maximum oxygen uptake per unit of time, such as the amount of oxygen measured in litres produced per minute
What is anaerobic power
maximal power (work per unit time) developed during all-out, short-term physical effort
What is anaerobic capacity
How long can I do this for?
What are the potential consequences to cardiovascular exercise?
- cardiac, pulmonary and/or vascular disease
- Impaired performance of sustained low intensity physical activity
- impaired recovery following physical exertion
How do you measure cardiovascular fitness?
VO2 max
Bruce treadmill test
What is body composition?
The absolute and relative amounts of fat, bone and muscle composing the body
What are the subtypes of body composition
- muscle mass
- fat mass
- bone mass/bone mineral density
What are some potential consequences of body composition focused exercise?
- cardiac, pulmonary and/or vascular disease
- metabolic diseases (e.g. type 2 diabetes)
- osteopenia -> osteoporosis
- sarcopaenia (muscle wasting)
What are some direct measures of body composition?
Cadaver studies
What are some indirect ways to measure body composition?
- DEXA
- infra red
- ultra sounds
What are some doubly indirect ways of measuring body composition?
- Equations
- Regression equations
- Skinfolds
- impedents analysis
Explain flexibility/suppleness
The range of motion through which a segment or joint can move
What are the subtypes of flexibility?
Active- creating force internally
Passive- force is coming from external, using to stretch
What are some potential consequences while focusing on flexibility?
- Inability to perform physical tasks properly
- increased risk of musculoskeletal injury
- pain/discomfort
What is proprioceptive neuromuscular facilitation
- contraction of a muscle or isometric contraction with some hold or release in order to release the tension in the muscle
- contract and release
- almost instant range of motion improvement
What is an active insufficiency?
- when a muscle is too short to execute it performance anyone
- overlap is too great
- lose ability to produce force
What is passive insufficiency?
Muscle gets elongated so much to a position that it is now limiting range of motion
What is muscular fitness?
The ability for a muscle to generate force (strength) repetitively or for a sustained period (endurance)
What are the subtypes of muscular fitness?
- Static; dynamic
- Eccentric; Isometric; Concentric
What are the potential consequences of muscular fitness?
- inability to perform physical tasks properly
- inability to sustain performance of moderate to high intensity physical tasks
- increased risk of musculoskeletal injury
- impairment in static and/or dynamic balance
- muscle spasms/cramping