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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS
A Journal on Applied Physiology, Biomechanics, Preventive Medicine,
Sports Medicine and Traumatology, Sports Psychology
Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111
ORIGINAL ARTICLES EXERCISE PHYSIOLOGY AND BIOMECHANICS
The Journal of Sports Medicine and Physical Fitness 2016 October;56(10):1125-31
Physiological stress and performance analysis to karate combat
Helmi CHAABENE 1, Ilhem HELLARA 2, Faten B. GHALI 2, Emerson FRANCHINI 3, Fedoua NEFFATI 2, Montassar TABBEN 4, Mohamed F. NAJJAR 2, Younés HACHANA 5 ✉
1 Research Laboratory “Sports performance Optimization”, National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia; 2 Biochemistry and Toxicology Laboratory, University Hospital of Monastir, Monastir, Tunisia; 3 Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil; 4 CETAPS EA 3832, University of Rouen, Mont Saint Aignan, France; 5 Higher Institute of Sports and Physical Education ksar Said, Manouba University, Tunis, Tunisia
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.