VO2 response to exercise Flashcards
how does VO2 respond to exercise
VO2 goes up but the response is dependent on intensity and duration
describe static resistance
can be sustained for less than or equal to 10 minutes
intensity will always be below 100% MVC
the dominant energy system is anaerobic
examples include wall sits, planks, etc…
what does MVC stand for
maximum voluntary contraction
describe dynamic resistance
duration depends on the # of sets and reps
anything that is less intense than your 1RM - ie. less than 100% power
primary energy system is anaerobic
examples include bicep curls, pull-ups, etc…
describe very short-term high-intensity
duration is under 3 minutes
intensity is around 100% of Pmax
primary energy system is anaerobic
example: sprinting to catch the bus
define Pmax
maximum aerobic power
describe short-term light to moderate
duration is ~3-15 mins
intensity ranges from ~30->70% Pmax
primary energy system is aerobic
example: 20 min walk with a friend
describe long term moderate to heavy
duration can be anything from 15 mins to 4 hrs
intensity is ~70-<90% Pmax
primary energy system is aerobic
example: uphill hike w/ backpack
describe incremental exercise to max
lasts around 5-20 mins
intensity goes from 20 to 100% Pmax
primary energy system is aerobic
example is the VO2 max test
what does EPOC stand for
excess post-exercise O2 consumption
Describe VO2 responses to short-term, light to moderate PA
mention how lag is affected, steady state VO2, and [Ca2+] + [ADP] + [Pi]
the time that it takes to reach the steady state is proportional to intensity
- increased lag comes with increased intensity -> takes time to ramp up O2 delivery/aerobic metabolic pathways
- increased lag in untrained ppl + older ppl
steady-state VO2 will be appropriate for intensity
- higher intensity = higher VO2
- lower intensity = lower VO2
higher [Ca2+] indicates higher muscle contraction
higher [ADP]/[Pi] indicates higher ATP use
describe the VO2
