title: Training profile counts for time-to-exhaustion performance.
abstract: The objective of this study was to compare the time to exhaustion (Tlim) at maximal aerobic speed (v.VO2max) in middle- and long-distance runners. Five middle-distance (MDR) and 5 long-distance (LDR) male runners, ages 28 +/- 7 years, were tested running on a treadmill, with the Université de Montréal Track Test (UMTT), on maximal velocity and on time-to-exhaustion track tests. During the laboratory test, cardiorespiratory variables (e.g., HR, .VO2max, .VCO2, .VE) were assessed. Second, running velocity at .VO2max (v.VO2max) during the UMTT was determined and HR values were recorded; also, maximal velocity on a 30-m sprint (V30) and maximal heart rate (HR max) and time to exhaustion were determined on the track. No significant difference was observed between groups during the multistage treadmill test. Significant differences were found between groups for V30 and Tlim, with MDR showing a 23% longer running time than LDR. The results of the present study demonstrated that the training profile of middle-distance and long-distance runners plays a significant role in Tlim performance when v.VO2max is obtained during a test with short-duration stages.
authors.affiliation: Kinesiology Division, Department of Social and Preventive Medicine, Faculty of Medicine, Université Laval, Sainte-Foy, Quebec, Canada G1K 7P4.
authors.forename: Fabien A
authors.initials: FA
authors.lastname: Basset
authors.forename: Richard
authors.initials: R
authors.lastname: Chouinard
authors.forename: Marcel R
authors.initials: MR
authors.lastname: Boulay
mesh_terms: D000328:Adult; D004734:Energy Metabolism; D006339:Heart Rate; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D010806:Physical Education and Training; D010807:Physical Endurance; D012420:Running / Q000502:physiology*; D013997:Time Factors