title: A single test for the determination of parameters of the speed-time relationship for running.
abstract: A validated expeditious method is needed to determine critical speed (CS) and the finite distance that can be covered above CS (D'). We tested the hypothesis that a single all-out 3-min running test would accurately determine CS and D'. Seven healthy subjects completed three constant-speed runs on a treadmill for the determination of CS and D', as well as an all-out 3-min test on a track for the determination of end-test speed (ES) and the distance above end-test speed (DES). ES (13.4 ± 2.8 km h(-1)) was not significantly different from the speed-1/time model CS (13.3 ± 2.8 km h(-1)). While DES (141 ± 34 m) was not significantly different from D' (204 ± 103 m), it underestimated D' in 5 of 7 subjects. Thus, the speed-1/time model CS can be accurately determined using a single 3-min test, while caution should be used in relating DES to D'.
authors.affiliation: Department of Kinesiology, Kansas State University, Manhattan, KS, USA. rbrox@ksu.edu
authors.forename: R M
authors.initials: RM
authors.lastname: Broxterman
authors.forename: C J
authors.initials: CJ
authors.lastname: Ade
authors.forename: D C
authors.initials: DC
authors.lastname: Poole
authors.forename: C A
authors.initials: CA
authors.lastname: Harms
authors.forename: T J
authors.initials: TJ
authors.lastname: Barstow
mesh_terms: D000328:Adult; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology; D010807:Physical Endurance / Q000502:physiology*; D015656:Respiratory Mechanics / Q000502:physiology*; D012420:Running / Q000502:physiology*; D013997:Time Factors; D055815:Young Adult