EXAM1- CV Assessments EXTRA Flashcards
cardiorespiratory fitness (CRF)
the ability of the circulatory + respiratory systems to supply oxygen to skeletal muscles during sustained physical activity
-reflects the functional capacities of the heart, blood vessels, lungs, + skeletal muscles to perform wok
reasons for measuring CRF
-identifying physiological strengths + weaknesses
-ranking people for selection purposes
-predicting future performances
-evaluating the effectiveness of a training program or trial
-tracking performance over time
-assigning or manipulating training dosage
in measuring CRF…
both resting + exercising assessments should be done
1 MET =
3.5 mL/kg/min
average resting VO2
3.5 mL/kg/min
-aka 1 MET
for every liter of oxygen, we burn ____ calories
5 calories
gross VO2
caloric cost of rest + exercise
net VO2
caloric cost of exercise alone
females/males generally have a lower VO2
females
-due to lower lean body mass + menstrual cycle
how do we quantify RPE
Borg scale
Borg scale
6-20
-based on HR of a 20 year old
HR range of Borg scale
60-200 bpm
using Borg scale, how do we calculate HR
RPE x 10 should be roughly equal to HR +/- 10 bpm
modified Borg
for older individuals
-1-10
-used for when medications or age skew Borg scale results
OMNI scale
same idea as Borg but catered to an individual mode + has a visual component
-beneficial for kids + older individuals
modalities of VO2 testing
-running/walking
-step tests
-cycle tests
-arm ergometry
what is the most commonly used modality
running/walking
what is the most portable test
step tests
running/walking lab tests
-Bruce
-Balke
-Astrand
running/walking field tests
-12 min
-Pacer
-1.5 mile
-Rockport mile
step tests may be too intense for…
sedentary/DECONDITIONED people
-also requires a lot of balance
step tests
-McArdle step test
-YMCA step test
-Harvard step test
-Queens College step test
cycle test are preferred for who
for some disabilities that could be made worse by weight-bearing activities
cycle tests
-YMCA cycle test
-Astrand
-Rhyming cycle test
arm ergometry is beneficial for who
clients with lower body disabilities
describe how arm ergometry differs from other modalities
HR + BP tend to be higher at submaximal loads for arm ergometry relative to lower body modalities
the most accurate protocols will be ____
graded
-changing intensity
RER = 0.7
100% fat
RER = 1
100% carbs
RER > 1
producing more CO2 than consuming
-comes from buffering hydrogen ions
once RER is above 1…
we know they are getting closer to VO2 max
appropriate room temperature for VO2 max testing
68-72 F
appropriate humidity for VO2 max testing
< 60%
field test
outside laboratory
benefit of field test
multiple people can be measured at once
laboratory test
within lab
-more accurate
closed-circuit spirometry
the air that the organism is taking in comes from a sealed container where the precise amounts of elements are known
-when the organism exhales the air is collected in a different sealed container and compared to air in the original sealed container
open-circuit spirometry
the air that the organism is taken in from the surrounding/environmental air
-when the organism exhales the air is collected and compared to the assumed composition of the air they inhaled
environmental air makeup
-78% nitrogen
-21% oxygen
-0.03% carbon dioxide
-1% other gases
calorimetry
the measurement of the amount of heat involved in a chemical reaction or other process
-we use this to estimate energy balance + energy expenditure
direct calorimetry
almost never seen in human fitness measurements
-only in extreme lab research methods
indirect calorimetry
used much more often; estimation of calories from oxygen consumption
-in all tests studied in class, indirect calorimetry is used
longest the YMCA test will last
12 min
shortest the YMCA test will last
6 min
