title: Distribution of power output when establishing a breakaway in cycling.
abstract: A number of laboratory-based performance tests have been designed to mimic the dynamic and stochastic nature of road cycling. However, the distribution of power output and thus physical demands of high-intensity surges performed to establish a breakaway during actual competitive road cycling are unclear. Review of data from professional road-cycling events has indicated that numerous short-duration (5-15 s), high-intensity (~9.5-14 W/kg) surges are typically observed in the 5-10 min before athletes' establishing a breakaway (ie, riding away from a group of cyclists). After this initial high-intensity effort, power output declined but remained high (~450-500 W) for a further 30 s to 5 min, depending on race dynamics (ie, the response of the chase group). Due to the significant influence competitors have on pacing strategies, it is difficult for laboratory-based performance tests to precisely replicate this aspect of mass-start competitive road cycling. Further research examining the distribution of power output during competitive road racing is needed to refine laboratory-based simulated stochastic performance trials and better understand the factors important to the success of a breakaway.
authors.affiliation: School of Exercise and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.
authors.forename: Chris R
authors.initials: CR
authors.lastname: Abbiss
authors.forename: Paolo
authors.initials: P
authors.lastname: Menaspà
authors.forename: Vincent
authors.initials: V
authors.lastname: Villerius
authors.forename: David T
authors.initials: DT
authors.lastname: Martin
mesh_terms: D054874:Athletic Performance / Q000502:physiology*; D001642:Bicycling / Q000502:physiology*; D006801:Humans; D010807:Physical Endurance / Q000502:physiology; D005082:Physical Exertion / Q000502:physiology*