The Effect of Mode and Intensity on Vo2 Kinetics in the Severe Intensity Domain Page: 29
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test, TVO2max was determined as (4.6 - T MEAN RESPONSE). Time spent at VO2max was
determined by subtracting the TVO2max from TFATIGUE.
Description of the Relationship Between Tvo2max and TFATIGUE
For both running and cycling data, linear regression techniques on SPSS
were used to describe the relationship between the TVO2max (calculated from TMEAN
RESPONSE) and TFATIGUE. With TVO2max expressed as a function of TFATIGUE, it was
possible to solve for the unique TFATIGUE, namely the upper bound of the severe
intensity domain (TUPPER BOUND), at which VO2max is achieved at the point of
fatigue.
Statistical Analyses
An average VO2max value was calculated for all completed constant power
tests on the cycle ergometer and on the treadmill. The average values were
compared using a paired-means t-test to determine differences within and
between modes. Mean values for TUPPER BOUND and/or the means, slopes and y-
intercepts of the regressions of TVO2max and TFATIGUE for cycling and running were
compared using paired-means t-tests.
Another method of comparing the VO2 responses was to match tests of
similar duration. Mean values were calculated and a two-way ANOVA with
repeated measures across exercise mode and exercise duration was run to
determine main and interaction effects.
All results are reported as mean + SD. Statistical significance was preset
at an alpha < 0.05 for all analyses.29
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Updyke, Rhonda S. The Effect of Mode and Intensity on Vo2 Kinetics in the Severe Intensity Domain, thesis, May 2000; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc2493/m1/35/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .