High Agreement between Laboratory and Field Estimates of Critical Power in Cycling

B. Karsten; S. A. Jobson; J. Hopker; A. Jimenez; C. Beedie

doi:10.1055/s-0033-1349844

High Agreement between Laboratory and Field Estimates of Critical Power in Cycling

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

^*Corresponding author for this work

Department of Psychology

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

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Abstract

The purpose of this study was to investigate the level of agreement between laboratory-based estimates of critical power (CP) and results taken from a novel field test. Subjects were fourteen trained cyclists (age 40 +/- 7 yrs; body mass 70.2 +/- 6.5 kg; O-2max 3.8 +/- 0.5 L center dot min(-1)). Laboratory-based CP was estimated from 3 constant work-rate tests at 80%, 100% and 105% of maximal aerobic power (MAP). Field-based CP was estimated from 3 all-out tests performed on an outdoor velodrome over fixed durations of 3, 7 and 12 min. Using the linear work limit (W-lim) vs. time limit (T-lim) relation for the estimation of CP1 values and the inverse time (1/t) vs. power (P) models for the estimation of CP2 values, field-based CP1 and CP2 values did not significantly differ from laboratory-based values (234 +/- 24.4 W vs. 234 +/- 25.5 W (CP1); P

Original language	English
Pages (from-to)	298-303
Number of pages	6
Journal	International Journal of Sports Medicine
Volume	35
Issue number	4
DOIs	https://doi.org/10.1055/s-0033-1349844
Publication status	Published - Apr 2014

Keywords

critical intensity
exercise testing
power-duration relationship
HIGH-INTENSITY EXERCISE
LACTATE STEADY-STATE
DURATION RELATIONSHIP
RESPIRATORY PROFILE
STATISTICAL-METHODS
TIME RELATIONSHIP
CRITICAL SPEED
WORK CAPACITY
PERFORMANCE
RELIABILITY

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title = "High Agreement between Laboratory and Field Estimates of Critical Power in Cycling",

abstract = "The purpose of this study was to investigate the level of agreement between laboratory-based estimates of critical power (CP) and results taken from a novel field test. Subjects were fourteen trained cyclists (age 40 +/- 7 yrs; body mass 70.2 +/- 6.5 kg; O-2max 3.8 +/- 0.5 L center dot min(-1)). Laboratory-based CP was estimated from 3 constant work-rate tests at 80%, 100% and 105% of maximal aerobic power (MAP). Field-based CP was estimated from 3 all-out tests performed on an outdoor velodrome over fixed durations of 3, 7 and 12 min. Using the linear work limit (W-lim) vs. time limit (T-lim) relation for the estimation of CP1 values and the inverse time (1/t) vs. power (P) models for the estimation of CP2 values, field-based CP1 and CP2 values did not significantly differ from laboratory-based values (234 +/- 24.4 W vs. 234 +/- 25.5 W (CP1); P",

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

note = "Karsten, B., Jobson, S. A., Hopker, J., Jimenez, A., Beedie, C. (2014). High Agreement between Laboratory and Field Estimates of Critical Power in Cycling. International Journal of Sports Medicine, 35 (4), 298-303",

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doi = "10.1055/s-0033-1349844",

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AU - Jobson, S. A.

AU - Hopker, J.

AU - Jimenez, A.

AU - Beedie, C.

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N2 - The purpose of this study was to investigate the level of agreement between laboratory-based estimates of critical power (CP) and results taken from a novel field test. Subjects were fourteen trained cyclists (age 40 +/- 7 yrs; body mass 70.2 +/- 6.5 kg; O-2max 3.8 +/- 0.5 L center dot min(-1)). Laboratory-based CP was estimated from 3 constant work-rate tests at 80%, 100% and 105% of maximal aerobic power (MAP). Field-based CP was estimated from 3 all-out tests performed on an outdoor velodrome over fixed durations of 3, 7 and 12 min. Using the linear work limit (W-lim) vs. time limit (T-lim) relation for the estimation of CP1 values and the inverse time (1/t) vs. power (P) models for the estimation of CP2 values, field-based CP1 and CP2 values did not significantly differ from laboratory-based values (234 +/- 24.4 W vs. 234 +/- 25.5 W (CP1); P

AB - The purpose of this study was to investigate the level of agreement between laboratory-based estimates of critical power (CP) and results taken from a novel field test. Subjects were fourteen trained cyclists (age 40 +/- 7 yrs; body mass 70.2 +/- 6.5 kg; O-2max 3.8 +/- 0.5 L center dot min(-1)). Laboratory-based CP was estimated from 3 constant work-rate tests at 80%, 100% and 105% of maximal aerobic power (MAP). Field-based CP was estimated from 3 all-out tests performed on an outdoor velodrome over fixed durations of 3, 7 and 12 min. Using the linear work limit (W-lim) vs. time limit (T-lim) relation for the estimation of CP1 values and the inverse time (1/t) vs. power (P) models for the estimation of CP2 values, field-based CP1 and CP2 values did not significantly differ from laboratory-based values (234 +/- 24.4 W vs. 234 +/- 25.5 W (CP1); P

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KW - exercise testing

KW - power-duration relationship

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KW - LACTATE STEADY-STATE

KW - DURATION RELATIONSHIP

KW - RESPIRATORY PROFILE

KW - STATISTICAL-METHODS

KW - TIME RELATIONSHIP

KW - CRITICAL SPEED

KW - WORK CAPACITY

KW - PERFORMANCE

KW - RELIABILITY

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DO - 10.1055/s-0033-1349844

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SP - 298

EP - 303

JO - International Journal of Sports Medicine

JF - International Journal of Sports Medicine

IS - 4

ER -

High Agreement between Laboratory and Field Estimates of Critical Power in Cycling

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Keywords

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