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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS
Rivista di Medicina, Traumatologia e Psicologia dello Sport
Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111
The Journal of Sports Medicine and Physical Fitness 2016 Jul 05
Effects of mental training on muscular force, hormonal and physiological changes in kickboxers
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.