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25 terms

Lab 3D - Aerobic Tests

Kinesiology
STUDY
PLAY
Purpose
learn the basis and technique involved in administering the YMCA Cycle Ergometer Test, Astrand-Ryhming and Bruce Treadmill Test for estimating Aerobic capacity/power.
Aerobic is
with oxygen
For Muscles to be supplied with increased oxygen these must occur
1) increased cardiac output
2) increased ventilation
3) a diversion of a greater proportion of the cardiac output to the active muscles.
Cardiac Output
the amount of blood pumped by the heart each minutes, is usually expressed as liters/minutes
Cardiac output =
HR x SV
Stroke Volume
the amount of blood pumped per beat of the heart
VO2Max
SV x HR x A-VO2 difference
A-VO2 difference
the difference between the amount of O2 extracted or consumed by the muscles and body(arterial minus venous blood O2 difference).
The YMCA and Astrand-Ryhming cycle test and Bruce Treadmill Test can be used as a test of___
Physical Work Capacity (PWC) or cardiorespiratory fitness and can be used to ESTIMATE maxVO2
Tests are based on the following
1) as cardiorespiratory fitness increases, heart rate at a given sub-maximal workload decreases
2) the higher cardiorespiratory fitness results in a higher max VO2
Tests used to estimate maxVO2 include:
step-bench tests, the 9 and 12-min run tests and 1 to 1.5 mile run tests.
Maximal Oxygen Uptake(VO2max) estimates in
Liters per minute (l/min) for the Astrand-Ryhming Test
Tables
Heart Rate vs Work Load.
Age Correction
YMCA Cylce Test
Can be used to predict VO2 based on the linear relationship between HR and work rate (VO2) at a heart rate over 110
YMCA Test
mustextrapolate HR-work rate relationship out to max HR
Cycle at____ RPM
50
1st Workload = _______
150 kgm = 0.5 kp
Each stage lasts ________
3 minutes
Take heart rate during the last ______
2 min of each stage
Heart rates during last 2 min of each stage should be within __ beats of each other, if not add 1 additional minute
5
Complete ____one work stage past the stage where a HR of 110 was reached
ONLY
Draw line through HRs starting at
HR>110
ml/kg/min =
(L/min x 1000)/body wt in kg
___RPM
50
___min stages
3