title: High-intensity Interval Training in the Boundaries of the Severe Domain: Effects on Sprint and Endurance Performance.
abstract: In order to compare the effects of two 4-week interval training programs performed at the lower (Critical Power, CP) or at the higher (The highest intensity at which V˙O2max is attained, IHIGH) intensities of the severe exercise domain on sprint and endurance cycling performance, 21 recreationally trained cyclists performed the Wingate Anaerobic Test (WAnT) and a 250-kJ time trial. Accumulated oxygen deficit (AOD), surface electromyography (RMS), and blood lactate kinetics were measured during the WAnT. Subjects were assigned to 105% CP or IHIGHgroups. During the WAnT, significantly greater improvements in peak (Mean ±95%CI) (5.7±2.3% vs. 0.2±2.2%), mean power output (MPO) (3.7±2.0% vs. 0.5±1.8%), and RMS (17.8±7.4% vs. -15.7±7.9%) were observed in the IHIGHgroup (P<0.05). Higher and lower AOD, respectively, at the start and during the second half of the WAnT were observed after IHIGHtraining. The changes in RMS and MPO induced by the training were significantly correlated (r=0.584). The 2 interventions induced improvements in the 250-kJ time trial. In conclusion, although the improvements in endurance performance were similar, training at IHIGHled to higher gains in WAnT performance than training at 105%CP.
authors.affiliation: Human Performance Research Group, Center for Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil.
authors.forename: T
authors.initials: T
authors.lastname: Turnes
authors.affiliation: Human Performance Research Group, Center for Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil.
authors.forename: R A
authors.initials: RA
authors.lastname: de Aguiar
authors.affiliation: Human Performance Research Group, Center for Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil.
authors.forename: R S
authors.initials: RS
authors.lastname: de Oliveira Cruz
authors.affiliation: Human Performance Research Group, Center for Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil.
authors.forename: K
authors.initials: K
authors.lastname: Pereira
authors.affiliation: Human Performance Research Group, Center for Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil.
authors.forename: A F
authors.initials: AF
authors.lastname: Salvador
authors.affiliation: Human Performance Research Group, Center for Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil.
authors.forename: F
authors.initials: F
authors.lastname: Caputo
mesh_terms: D000328:Adult; D015308:Anaerobic Threshold / Q000502:physiology; D054874:Athletic Performance / Q000502:physiology; D001642:Bicycling / Q000502:physiology*; D004576:Electromyography; D015444:Exercise / Q000502:physiology; D005260:Female; D000072696:High-Intensity Interval Training; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology; D010807:Physical Endurance / Q000502:physiology*; D012420:Running / Q000502:physiology*; D055815:Young Adult
chemical_list: D019344:Lactic Acid