title: Blood lactate levels of decathletes during competition.
abstract: There are many detailed physiological profiles of athletes who participate in a wide variety of sporting activities but few data have been obtained on decathletes. This study defines some physiological characteristics of these athletes and measures capillary lactate concentrations [La(b)] during a laboratory test of progressive maximal exhaustion and the different events during competition. The treadmill test is similar to the 100 m, 400 m and 1500 m in terms of [La(b)] accumulation but only similar to the 1500 m in terms of velocity. The 400 m is the most demanding event with the greatest blood lactate accumulation (mean(s.d.) 16.38(2.36) mmol l-1). The [La(b)] at the end of the 110 m hurdles is significantly lower than in any other racing events (mean(s.d.) 6.96(1.32) mmol l-1) compared with mean(s.d.) 12.14(2.87) and mean(s.d.) 11.44(2.16) for the 100 m and 1500 m respectively. The [La(b)] after the long jump, the high jump and the pole vault are not significantly different (mean(s.d.) 5.30(2.23), 4.64(1.39) and 5.36(1.34) mmol l-1) respectively).
authors.affiliation: Laboratoire de Biologie Appliquée à l'Education Physique et aux Sports, Université de Bordeaux 11, France.
authors.forename: P
authors.initials: P
authors.lastname: Beaulieu
authors.forename: H
authors.initials: H
authors.lastname: Ottoz
authors.forename: C
authors.initials: C
authors.lastname: Grange
authors.forename: J
authors.initials: J
authors.lastname: Thomas
authors.forename: C
authors.initials: C
authors.lastname: Bensch
mesh_terms: D000293:Adolescent; D000328:Adult; D015308:Anaerobic Threshold / Q000502:physiology; D002196:Capillaries; D004562:Electrocardiography; D005080:Exercise Test; D005541:Forced Expiratory Volume; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D007773:Lactates / Q000097:blood*; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology; D010366:Peak Expiratory Flow Rate; D010807:Physical Endurance / Q000502:physiology; D012420:Running / Q000502:physiology; D013997:Time Factors; D014142:Track and Field / Q000502:physiology*; D014797:Vital Capacity
chemical_list: D007773:Lactates