The 3-min Test Does not Provide a Valid Measure of Critical Power Using the SRM Isokinetic Mode

B. Karsten; S. A. Jobson; J. Hopker; L. Passfield; C. Beedie

doi:10.1055/s-0033-1349093

The 3-min Test Does not Provide a Valid Measure of Critical Power Using the SRM Isokinetic Mode

B. Karsten^*, S. A. Jobson, J. Hopker, L. Passfield, C. Beedie

^*Corresponding author for this work

Department of Psychology

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Abstract

Recent datas suggest that the mean power over the final 30 s of a 3-min all-out test is equivalent to Critical Power (CP) using the linear ergometer mode. The purpose of the present study was to identify whether this is also true using an "isokinetic mode". 13 cyclists performed: 1) a ramp test; 2) three 3-min all-out trials to establish End Power (EP) and work done above EP (WEP); and 3) 3 constant work rate trials to determine CP and the work done above CP (W ') using the work-time (=CP1/W ' 1) and 1/time (=CP2/W ' 2) models. Coefficient of variation in EP was 4.45% between trials 1 and 2, and 4.29% between trials 2 and 3. Limits of Agreement for trials 1-2 and trials 2-3 were -2 +/- 38 W. Significant differences were observed between EP and CP1 (+37 W, P

Original language	English
Pages (from-to)	304-309
Number of pages	6
Journal	International Journal of Sports Medicine
Volume	35
Issue number	4
DOIs	https://doi.org/10.1055/s-0033-1349093
Publication status	Published - Apr 2014

Keywords

exercise testing
critical intensity
reliability
anaerobic work capacity
validity
OUT CYCLING TEST
HIGH-INTENSITY EXERCISE
ACCUMULATED OXYGEN DEFICIT
ANAEROBIC WORK CAPACITY
DURATION RELATIONSHIP
STATISTICAL-METHODS
RELIABILITY
PERFORMANCE
PARAMETERS
TIME

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title = "The 3-min Test Does not Provide a Valid Measure of Critical Power Using the SRM Isokinetic Mode",

abstract = "Recent datas suggest that the mean power over the final 30 s of a 3-min all-out test is equivalent to Critical Power (CP) using the linear ergometer mode. The purpose of the present study was to identify whether this is also true using an {"}isokinetic mode{"}. 13 cyclists performed: 1) a ramp test; 2) three 3-min all-out trials to establish End Power (EP) and work done above EP (WEP); and 3) 3 constant work rate trials to determine CP and the work done above CP (W ') using the work-time (=CP1/W ' 1) and 1/time (=CP2/W ' 2) models. Coefficient of variation in EP was 4.45% between trials 1 and 2, and 4.29% between trials 2 and 3. Limits of Agreement for trials 1-2 and trials 2-3 were -2 +/- 38 W. Significant differences were observed between EP and CP1 (+37 W, P",

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author = "B. Karsten and Jobson, {S. A.} and J. Hopker and L. Passfield and C. Beedie",

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AU - Beedie, C.

N1 - Karsten, B., Jobson, S. A., Hopker, J., Passfield, L., Beedie, C. (2014). The 3-min Test Does not Provide a Valid Measure of Critical Power Using the SRM Isokinetic Mode. International Journal of Sports Medicine, 35 (4), 304-309

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N2 - Recent datas suggest that the mean power over the final 30 s of a 3-min all-out test is equivalent to Critical Power (CP) using the linear ergometer mode. The purpose of the present study was to identify whether this is also true using an "isokinetic mode". 13 cyclists performed: 1) a ramp test; 2) three 3-min all-out trials to establish End Power (EP) and work done above EP (WEP); and 3) 3 constant work rate trials to determine CP and the work done above CP (W ') using the work-time (=CP1/W ' 1) and 1/time (=CP2/W ' 2) models. Coefficient of variation in EP was 4.45% between trials 1 and 2, and 4.29% between trials 2 and 3. Limits of Agreement for trials 1-2 and trials 2-3 were -2 +/- 38 W. Significant differences were observed between EP and CP1 (+37 W, P

AB - Recent datas suggest that the mean power over the final 30 s of a 3-min all-out test is equivalent to Critical Power (CP) using the linear ergometer mode. The purpose of the present study was to identify whether this is also true using an "isokinetic mode". 13 cyclists performed: 1) a ramp test; 2) three 3-min all-out trials to establish End Power (EP) and work done above EP (WEP); and 3) 3 constant work rate trials to determine CP and the work done above CP (W ') using the work-time (=CP1/W ' 1) and 1/time (=CP2/W ' 2) models. Coefficient of variation in EP was 4.45% between trials 1 and 2, and 4.29% between trials 2 and 3. Limits of Agreement for trials 1-2 and trials 2-3 were -2 +/- 38 W. Significant differences were observed between EP and CP1 (+37 W, P

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KW - PERFORMANCE

KW - PARAMETERS

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JO - International Journal of Sports Medicine

JF - International Journal of Sports Medicine

IS - 4

ER -

The 3-min Test Does not Provide a Valid Measure of Critical Power Using the SRM Isokinetic Mode

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