The critical-power (CP) (and critical force) test of Monod and Scherrer involved dynamic, intermittent, static, and continuous muscle actions for isolated movements of synergic muscle groups including the forearm flexors, forearm extensors, and leg flexors. 1 This test involves local muscle work
Search Results
Contributions of Body-Composition Characteristics to Critical Power and Anaerobic Work Capacity
M. Travis Byrd, Jonathan Robert Switalla, Joel E. Eastman, Brian J. Wallace, Jody L. Clasey, and Haley C. Bergstrom
Critical Power, Work Capacity, and Recovery Characteristics of Team-Pursuit Cyclists
Charles F. Pugh, C. Martyn Beaven, Richard A. Ferguson, Matthew W. Driller, Craig D. Palmer, and Carl D. Paton
corresponding power output has been termed the critical power (CP, in Watts), while the finite work capacity and thus tolerance to exercise above CP can be defined as the “work-prime” (W′, in Joules). Together, the CP and W′ are parameters that describe the power–duration relationship of cycling performance
Time Trials Versus Time-to-Exhaustion Tests: Effects on Critical Power, W′, and Oxygen-Uptake Kinetics
Bettina Karsten, Jonathan Baker, Fernando Naclerio, Andreas Klose, Antonino Bianco, and Alfred Nimmerichter
Critical power (CP) is defined as the highest sustainable rate of aerobic metabolism without a continuous loss of homeostasis. 1 It separates power-output (PO) intensities, for which exercise tolerance is predictable (PO > CP), from those of longer sustainable durations (PO < CP). The second
Remote Determination of Critical Speed and Critical Power in Recreational Runners
Ben Hunter, Adam Ledger, and Daniel Muniz-Pumares
) 83 (41) Abbreviations: CP, critical power; CS, critical speed; HAB, habitual training; 3MT, 3-minute all-out test; TT, time trial. Note: Data are given as mean (SD). Superscript letters denote a significant difference between pairs. For HAB and TT, parameters from best individual fit models are
A Comparison of Critical Speed and Critical Power in Runners Using Stryd Running Power
Cody R. van Rassel, Kate M. Sales, Oluwatimilehin O. Ajayi, Koki Nagai, and Martin J. MacInnis
Critical power (CP), the asymptote of the power–duration relationship, is a fundamental concept in sport physiology. As CP is the metabolic rate that demarcates the boundary between heavy and severe exercise intensities, exercise below CP is characterized by a metabolic steady state. For exercise
Applying the Critical Power Model to a Full-Body Resistance-Training Movement
Taylor K. Dinyer, M. Travis Byrd, Ashley N. Vesotsky, Pasquale J. Succi, and Haley C. Bergstrom
The critical power (CP) model was originally developed as a 2-parameter linear model to examine the relationship between total work and time to exhaustion ( T lim ) for dynamic, continuous isometric, and intermittent isometric contractions of a muscle or local muscle group (less than one-third the
The Relationship Between Neuromuscular Function and the W′ in Elite Cyclists
Mehdi Kordi, Len Parker Simpson, Kevin Thomas, Stuart Goodall, Tom Maden-Wilkinson, Campbell Menzies, and Glyn Howatson
extreme- and severe-intensity domains of the power–duration (P–D) relationship. 1 The P–D relationship describes how the tolerable duration of an event is related to its intensity in a hyperbolic manner; the asymptote represents the critical power (CP), and the curvature constant is termed W ′. 1 – 3
9/3-Minute Running Critical Power Test: Mechanical Threshold Location With Respect to Ventilatory Thresholds and Maximum Oxygen Uptake
Santiago A. Ruiz-Alias, Javier Olaya-Cuartero, Alberto A. Ñancupil-Andrade, and Felipe García-Pinillos
—Hyperbolic relationship between velocity and time sustained of athletic world records. If this plot is created with multiple time to exhaustion trials of an athlete, the horizontal asymptote of the hyperbolic relationship denotes the so-called critical speed (CS) or critical power (CP) concept. 4 Defined as
Assessment of Critical Power with Children
Samantha G. Fawkner and Neil Armstrong
The purpose of this study was to examine methods of assessing Critical Power (CP) with children. Eight boys and 9 girls (10.3 – 0.4 yrs) completed 3 cycle tests in one day, each at a different constant power output predicted to induce fatigue in 2 to 15 min. Time to exhaustion was recorded, and order of the tests was randomized, with 3 hours recovery between tests. The children repeated these tests and 2 additional tests with at least 24 hr recovery between each test. CP was determined using least squares linear regression analysis of the power — t−1 relationship, for the single day (CP1), the 5 tests from different days (CP2), and the repeated 3 tests from different days (CP3). The 95% limits of agreement (range of percentage differences) were −15.4 to 13.1% (CP1 v CP2), −16.8 to 13.5% (CP1 v CP3), and −8.4 to 6.7% (CP2 v CP3). CP is a robust measure even when only 3 tests are completed in a single day and may be used to provide a simple and useful parameter of exercise intensity for constant load exercise with children.
Application of Critical Power in Sport
Anni Vanhatalo, Andrew M. Jones, and Mark Burnley
The critical power (CP) is mathematically defined as the power-asymptote of the hyperbolic relationship between power output and time-to-exhaustion. Physiologically, the CP represents the boundary between the steady-state and nonsteady state exercise intensity domains and therefore may provide a more meaningful index of performance than other well-known landmarks of aerobic fitness such as the lactate threshold and the maximal O2 uptake. Despite the potential importance to sports performance, the CP is often misinterpreted as a purely mathematical construct which lacks physiological meaning and only in recent years has this concept begun to emerge as valid and useful technique for monitoring endurance fitness. This commentary defines the basic principles of the CP concept, outlines its importance to high-intensity exercise performance, and provides an overview of the current methods available for its assessment. Interventions including training, pacing and prior exercise can be used to alter the parameters of the power-time relationship. A future challenge lies in optimizing such interventions in order to positively affect the parameters of the power-time relationship and thereby enhance sports performance in specific events.
