Acute fatigue in endurance athletes: The association between countermovement jump variables and creatine kinase response

Cristian Andres Yánez; Daniel Cohen; Mauricio Serrato; Ana Luisa Ospina

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Acute fatigue in endurance athletes: The association between countermovement jump variables and creatine kinase response

Cristian Andrés Yánez ^[1] ; Daniel Cohen ^[2] ; Mauricio Serrato ^[1] ; Ana Luisa Ospina ^[1]
1. [1] Universidad Nacional de Colombia
  
  Universidad Nacional de Colombia
  
  Colombia
2. [2] Universidad De Santander
  
  Universidad De Santander
  
  Colombia
Localización: European Journal of Human Movement, ISSN-e 2386-4095, ISSN 0214-0071, Nº. 51, 2023, págs. 115-125
Idioma: inglés
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Resumen
- The purpose of this study was to determine the variables of acute neuromuscular fatigue (NMF) and its correlation with the serum concentration of creatine kinase (CK) pre-and post-training through performance analysis counter movement jump (CMJ).Methods: Eight male endurance performance athletes performed 3 trials CMJ in force platform before and after fatigue protocol high intensity intermittent running (PFAI) (fatiguing to the maximum possible rate of work for each repetition Protocol). A total of 8 variables were analyzed through CMJ and the biomarker CK before and after fatigue protocol. Results: No significant differences for the variables of mean force MF (P = 0,62. d =0,03), time to peak force TTPF (P = 0,46. d = 0,43), jump height JH (P = 0,19. d = 0,65), flight time FT (P=0,26.d=0,58),relationflight time: contraction time FT:CT(P=0,74.d=0,59)andCK(P =0,79.d=0,31).Significantdifferencesinvariablesofpeakpower(p=0.008. d=1,37) and contraction time (p = 0.01. d=0,76) were found. Finally, Spearman’s correlation (Spearman’s Rho) for non-parametric tests was performedbetweenpeak power (PP) (p = 0.002) (r = 0.92) and contraction time (CT) (p = 0.001) (r = 0.97).Conclusions: There is a neuromuscular fatigue state in the acute phase determined of CMJ variables, independent of lineal relation CK production. Likewise, it is highlighted a major parameter the reduction of peak power and increment of contraction time in the neuromuscular performance.