Aerobic Endurance Flashcards
physical fitness
general term to describe ability to perform physical work
physical work requires
- cardiorespiratory function
- muscular strength
- muscular endurance
- musculoskeletal flexibility
fitness levels are what
a continuum which range from poor to superior
what is fitness levels dependent on
- energy expenditure during a bout of physical work
- VO2 max
VO2 max
max amount of oxygen consumed per minute when the individual has reached max effort
what is VO2 max influenced by
- age
- gender
- heredity
- inactivity
- disease
common clinical ways to assess aerobic endurance
- modified bruce protocol
- 2 min walk test
- 6 min walk test
- cycle ergometer test
endurance
ability to work for prolonged periods of time and the ability to resist fatigue
muscular endurance
ability of an isolated muscle group to perform repeated contractions over a period of time
CV endurance
ability to perform large muscle dynamic exercises
- walking, swimming, and/or biking for long periods of time
aerobic conditioning improves what
the energy utilization of the muscle through an exercise program
what is improvement of energy utilization a direct result of
increased levels of
- oxidative enzymes in the muscle
- mitochondrial density and size
- muscle fiber capillary supply
what is the goal of aerobic exercise
adaptation
adaption results in what
- increased efficiency of the CV system and active muscles
what happens to the body when training performance improves due to an adaptation
same amount of work can be performed at a lower physiological cost
what is adaptation dependent on
- ability of the organism to change and the training stimulus threshold
do people with low level of fitness have more improvement of fitness or people with high level of fitness
low level of fitness
when does deconditioning occur
with prolonged bed rest/sedentary lifestyle
what decreases rapidly with deconditioning
- max oxygen consumption
- cardiac output
- muscular strength
bed rest leads to
decreased of everything u can think of
duration and intensity of activity determines what
which metabolic system contributes
ATP-PC system
- anaerobic
- energy for short, quick bursts of activity
- during first 30s of intense exercise
anaerobic glycolytic system
- anaerobic
- moderate intensity and short duration activity
- energy source for 30th-90th second of exercise
aerobic system
- aerobic
- used after 2nd minute of exercise and beyond
