Physiological stress and performance analysis to karate combat

J Sports Med Phys Fitness. 2016 Oct;56(10):1125-1131. Epub 2015 Sep 10.

Abstract

Background: This study aimed to evaluate the relationship between physiological, and parameters of performance analysis during karate contest.

Methods: Nine elite-level karate athletes participated in this study. Saliva sample was collected pre- and post-karate combat.

Results: Salivary cortisol (sC) post-combat 2 raised significantly compared to that recorded at pre-combat 1 (Δ%=105.3%; P=0.04; dz=0.78). The largest decrease of the salivary T/C ratio (sR) compared to pre-combat 1 was recorded post-combat 2 (Δ%=-43.5%; P=0.03). Moreover, blood lactate concentration post-combat 1 correlated positively to sCpost-combat 1 (r=0.66; P=0.05) and negatively to both salivary testosterone (sT) (r=-0.76; P=0.01) and sRpost-combat 1 (r=-0.76; P=0.01). There was no significant relationship between hormonal measures and parameters of match analysis.

Conclusions: Although under simulated condition, karate combat poses large physiological stress to the karateka. Additionally, physiological strain to karate combat led to a catabolic hormonal response.

MeSH terms

  • Adolescent
  • Athletes*
  • Athletic Performance / physiology*
  • Humans
  • Hydrocortisone / analysis
  • Male
  • Martial Arts / physiology*
  • Saliva / chemistry
  • Stress, Physiological*
  • Testosterone / analysis
  • Young Adult

Substances

  • Testosterone
  • Hydrocortisone