title: Physiological responses and performance in a simulated trampoline gymnastics competition in elite male gymnasts.
abstract: Physiological responses and performance were examined during and after a simulated trampoline competition (STC). Fifteen elite trampoline gymnasts participated, of which eight completed two routines (EX1 and EX2) and a competition final (EX3). Trampoline-specific activities were quantified by video-analysis. Countermovement jump (CMJ) and 20 maximal trampoline jump (20-MTJ) performances were assessed. Heart rate (HR) and quadriceps muscle temperature (Tm) were recorded and venous blood was drawn. A total of 252 ± 16 jumps were performed during the STC. CMJ performance declined (P < 0.05) by 3.8, 5.2 and 4.2% after EX1, EX2 and EX3, respectively, and was 4.8% lower (P < 0.05) than baseline 24 h post-competition. 20-MTJ flight time was ~1% shorter (P < 0.05) for jump 1-10 after EX2 and 24 h post STC. Tm increased (P < 0.05) to ~39°C after the warm-up, but declined (P < 0.05) 1.0 and 0.6ºC before EX2 and EX3, respectively. Peak HR was 95-97% HRmax during EX1-3. Peak blood lactate, plasma K(+) and NH3 were 6.5 ± 0.5, 6.0 ± 0.2 mmol · l(-1) and 92 ± 10 µmol · l(-1), respectively. Plasma CK increased (P < 0.05) by ~50 and 65% 0 and 24 h after STC. In conclusion, a trampoline gymnastic competition includes a high number of repeated explosive and energy demanding jumps, which impairs jump performance during and 24 h post-competition.
authors.affiliation: a Department of Nutrition , Exercise and Sports (NEXS), University of Copenhagen , Copenhagen , Denmark.
authors.forename: Peter
authors.initials: P
authors.lastname: Jensen
authors.forename: Suzanne
authors.initials: S
authors.lastname: Scott
authors.forename: Peter
authors.initials: P
authors.lastname: Krustrup
authors.forename: Magni
authors.initials: M
authors.lastname: Mohr
mesh_terms: D000293:Adolescent; D000328:Adult; D054874:Athletic Performance / Q000502:physiology*; D003163:Competitive Behavior; D003402:Creatine Kinase / Q000097:blood; D006173:Gymnastics / Q000502:physiology*; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D008297:Male; D009068:Movement / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology; D010101:Oxygen Consumption; D005082:Physical Exertion / Q000502:physiology*; D013696:Temperature; D055815:Young Adult
chemical_list: D019344:Lactic Acid; D003402:Creatine Kinase