title: Repeated sprint performance and metabolic recovery curves: effects of aerobic and anaerobic characteristics.
abstract: To examine the influence of aerobic and anaerobic indices on repeated sprint (RS) performance and ability (RSA), 8 sprinters (SPR), 8 endurance runners (END), and 8 active participants (ACT) performed the following tests: (i) incremental test; (ii) 1-min test to determine first decay time constant of pulmonary oxygen uptake off-kinetics and parameters related to anaerobic energy supply, lactate exchange, and removal abilities from blood lactate kinetics; and (iii) RS test (ten 35-m sprints, departing every 20 s) to determine best (RSbest) and mean (RSmean) sprint times and percentage of sprint decrement (%Dec). While SPR had a 98%-100% likelihood of having the fastest RSbest (Cohen's d of 1.8 and 1.4 for ACT and END, respectively) and RSmean (2.1 and 0.9 for ACT and END, respectively), END presented a 97%-100% likelihood of having the lowest %Dec (0.9 and 2.2 for ACT and SPR, respectively). RSmean was very largely correlated with RSbest (r=0.85) and moderately correlated with estimates of anaerobic energy supply (r=-0.40 to -0.49). RSmean adjusted for RSbest (which indirectly reflects RSA) was largely correlated with lactate exchange ability (r=0.55). Our results confirm the importance of locomotor- and anaerobic-related variables to RS performance, and highlight the importance of disposal of selected metabolic by-products to RSA.
authors: Human Performance Research Group, Santa Catarina State University, Rua Pascoal Simone, 358, Coqueiros. Florianópolis, SC, Brasil. CEP: 88080-350.
authors: Rafael Alves
authors: RA
authors: de Aguiar
authors: Tiago
authors: T
authors: Turnes
authors: Rogério
authors: R
authors: Santos de Oliveira Cruz
authors: Amadeo Félix
authors: AF
authors: Salvador
authors: Fabrizio
authors: F
authors: Caputo
mesh_terms: D000328:Adult; D015308:Anaerobic Threshold / Q000502:physiology*; D054874:Athletic Performance / Q000502:physiology* / Q000706:statistics & numerical data; D006801:Humans; D019344:Lactic Acid / Q000378:metabolism*; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology*; D010807:Physical Endurance / Q000502:physiology; D012420:Running / Q000502:physiology* / Q000706:statistics & numerical data; D055815:Young Adult
chemical_list: D019344:Lactic Acid
keywords: V̇O2 de récupération; V̇O2 off-kinetics; cinétique du lactate; coureurs d’endurance; endurance runners; lactate kinetics; sprinters; sprinteurs