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Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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Maamer SLIMANI 1, 2, Lee TAYLOR 3, 4, Julien Steven BAKER 5, Aida ELLEUCH 6, Fatma Makni AYEDI 6, Karim CHAMARI 3, Foued CHÉOUR 7
1 Department of Biological Sciences, Faculty of Sciences of Bizerte, Tunisia; 2 Research Laboratory “Sports performance Optimization”, National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia; 3 Qatar Orthopedic and Sports Medicine Hospital, Athlete Health and Performance Research Centre, Aspire Zone, ASPETAR, Doha, Qatar; 4 School of Sport, Exercise and Health Sciences. Loughborough University, Loughborough, UK; 5 University of the West of Scotland, Institute of Clinical Exercise and Health Science, Ayr, United Kingdom; 6 Unit of Research “Molecular Bases of Human Diseases”, Sfax Medicine College, Sfax, Tunisia; 7 High Institute of Applied Biology of Médenine, Tunisia
BACKGROUND: The aim of the present study was to examine the effects of mental training on muscular force generation, hormonal alterations, and physiological adaptations in male trained kickboxers.
METHODS: Fiftythree male trained kickboxers (24.2±4.4 yrs, 1.75±0.08 m and 70.4±10.2 kg) were randomly assigned to a physicaltraining group (PG; n=20), physical and mental training group [PMG: n=18, mentaltraining package (MTP) plus physical training] or control group (CG: n=15). Physical fitness tests: countermovement jump (CMJ), medicine ball throw (MBT), bench press, and halfsquat tests; hormones: resting cortisol (C) blood sample, plasma testosterone (T) concentration, and T/C ratio; and physiological variables: resting heart rate (HR), and blood pressure (BP) were assessed before training commenced (baseline) and at week 6 and 12 of training.
RESULTS: PMG and PG improved performance in CMJ height (16.2%, 8.4%), MBT (27.9%, 14.2%), bench press (26.5%, 15.7%), halfsquat (27.2%, 16.3%), T concentration (35.2%, 22.4%), and T/C ratio (60%, 0%, for PMG only), respectively. In contrast, the C concentration decreased for the PMG (16.3%) and increased for the PG (22%) after 12 weeks. The PMG and PG had significant decrease from pre to posttraining for the resting HR (9.1%, 3%, respectively) and BP (8.5%, 5.3%, respectively). Furthermore, there was a significant increase in MBT (9.3%) after 6 weeks in PMG. Outlined improvements (PMG and PG) were favorable compared to CG (p< 0.05) in all instances.
CONCLUSION: The greater muscular force generation in PMG than PG seem to be explained by the reduction of hormonal and physiological stress after 12 weeks.