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Maya S. Krastanova, Elena M. Ilieva and Danelina E. Vacheva

preliminary investigation into the effects of active interferential current therapy and placebo on pressure pain sensitivity: a random crossover placebo controlled study. Physiotherapy 2011;97(4):291-301. 5. Bankov S. [Manual muscle testing.] Medicine and Sports 1991;81-91:130-5. [Bulgarian]. 6. Donatelli R, Wooden MJ. Orthopaedic physical therapy. 4th edition, St. Louis: Churchill & Livingstone; 2010:400-80. 7. Velkova D. Health and social problems of elderly people living alone in villages [dissertation]. Pleven, 2000 [Bulgarian]. 8. Ilieva E

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Miodrag Kocić, Ivana Bojić, Marko Aleksandrović, Aleksandar Ignjatović and Dragan Radovanović

References 1. Carmeli E, Barchad S, Lenger R, Coleman R. Muscle power, locomotor performance and flexibility in aging mentally-retarded adults with and without Down’s syndrome. J Musculoskelet Neuronal Interact 2002;2(5):457-62. http://europepmc.org/abstract/med/15758414 2. Cowley PM, Ploutz-Snyder LL, Baynard T, at al. Physical fitness predicts functional tasks in individuals with Down syndrome. Med Sci Sports Exerc 2010;42(2):388-93. http://europepmc.org/abstract/med/19927019 3. Chanias AK, Reid G, Hoover ML. Exercise effects on health

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Kristina Radoman, Vesna Vucic, Aleksandra Arsic, Dejan Cubrilo, Nevena Jeremic, Jovana Jeremic and Vladimir Jakovljevic

ABBREVIATIONS ALA - α-linolenic acid EPA - eicosapentaenoic acid DHA - docosahexaenoic acid IL-6 - interleukin-6 LA - linoleic acid LTE4 - leukotriene E4 PGE2 - prostaglandin E2 PUFA - polyunsaturated fatty acid TNF-α - tumour necrosis factor alpha TXB2 - thromboxane B2 REFERENCES 1. Hills AP, Street SJ, Byrne NM. Physical Activity and Health. What is Old is New Again. Adv Food Nutr Res. 2015; 75:77-95. 2. Maddison R, Jiang Y, Foley L, Scragg R, Direito A, Olds T. J Sci Med Sport. 2015; doi: 10.1016/j.jsams.2015

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Katerina N. Georgieva, Margarita S. Hadjieva, Mihaela S. Shishmanova-Doseva, Dora D. Terzieva, Nikola G. Georgiev, Georgi G. Andreev and Jana D. Tchekalarova

neuroprotective effect of losartan in kainate model of temporal lobe epilepsy. Pharmacol Biochem Beh 2014;127:27-36. 15. File SE, Pellow S. The effects of triazolobenzodiazepines in two animal tests of anxiety and in the holeboard. Br J Pharmacol 1985;86(3):729-35. 16. Gomes FG, Gomes Da Silva S, Cavalheiro EA, et al. Benefi cial infl uence of physical exercise following status epilepticus in the immature brain of rats. Neuroscience 2014;274:69-81. 17. Binder DK, Croll SD, Gall CM, et al. BDNF and epilepsy: too much of a good

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Slavica Kozomara and Ivana Krstić

–73. https://doi.org/10.1249/00003677-198101000-00001 5. Komi PV. ed. Strength and Power in Sport. Oxford, UK: Blackwell Scientific Publications; 1991. 6. Pollock ML, Vincent KR. Resistance training for health. The President’s Council on Physical Fitness and Sports Research Digest 1996; Series 2, No. 8. 7. Pollock ML, Evans WJ. Resistance training for health and disease. Med Sci Sports Exerc 1999; 31: 10–1. https://doi.org/10.1097/00005768-199901000-00003 8. US Department of Health and Human Services. Physical Activity and Health: A Report of the

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Konstantinos E. Tilkeridis, Evaggelos F. Theodorou, Jannis V. Papathanasiou, Pelagia A. Chloropoulou, Grigorios A. Trypsianis, Savvas P. Tokmakidis and Konstantinos I. Kazakos

References 1. Smart JE, Cumming SP, Sherar LB, et al. Maturity associated variance in physical activity and health-related quality of life in adolescent females: a mediated effects model. J Phys Act Health 2012;9(1):86-95. 2. Sherar LB, Esliger DW, Baxter-Jones AD, et al. Age and gender differences in youth physical activity: Does physical maturity matter? Med Sci Sports Exerc 2007;39(5):830-5. 3. Cumming SP, Sherar LB, Smart JE, et al. Physical Activity, Physical Self-Concept, and Health-Related Quality of Life

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Jelena Maric, Milan Marjanovic, Dalibor Jovanovic, Filip Stojanovic, Djordje Vukmirovic and Vladimir Jakovljevic

ABSTRACT

Heat stress is a significant problem in the military services. This study investigated the effects of exertional heat stress on cognitive performance.

Forty unacclimated male soldiers performed exertional heat stress tests in cool (20 °C) and hot environments (40 °C). Cognitive performance was assessed using a computerized battery before and immediately after tests. Physical strain in cool conditions induced mild but significant deficits in accuracy in complex tests. The number of correct answers in the Matching to Sample Visual Search was reduced (92,18% correct answers before vs. 88,64 after; p<0,05) and also in the spatial part of the Pattern and Spatial Recognition Memory Test (85,25 vs. 8,75%; p<0,05). These decreases were more pronounced in hot conditions (92,38 vs. 84,31% in before and 84,21 vs. 73,42% in the latter test; ps<0,01 and <0,001, respectively). Exertional heat stress also impaired more simple cognitive functions. A significant decrease in accuracy (95,74 vs. 93,89%) and an increase in reaction time (300,32 vs. 315,00 ms) was observed in the Reaction Time test.

Strenuous physical activity in a hot environment induces mild cognitive deficits, especially in more complex tasks.

Open access

Radmila Radojevic-Popovic, Tamara Nikolic, Isidora Stojic, Jovana Jeremic, Ivan Srejovic, Goran Pesic and Vladimir Jakovljevic

stress? Biochem Med (Zagreb). 24(2):235-247. 6. Doubt, TJ. (1996). Cardiovascular and thermal responses to SCUBA diving. Med Sci Sports Exerc. 28:5816. 7. Ferrer MD, Sureda A, Batle JM, Tauler P, Tur JA, Pons A. (2007). Scuba diving enhances endogenous antioxidant defenses in lymphocytes and neutrophils. Free Radic Res. 41:274-281. 8. Cabo JV, Martinez-Camblor P, Del Valle M. (2011). Validity of the modified conconi test for determining ventilatory threshold during on-water rowing. J Sports Sci Med. 10

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Snezana Radovanovic, Dragan Vasiljevic, Sanja Kocic, Svetlana Radevic, Mirjana Milosavljević and Nataša Mihailovic

Abstract

The aim of this study was to determine the prevalence of alcohol consumption among adolescents in Serbia and its association with sociodemographic characteristics. This paper is based on data from a national health survey of the population of Serbia in 2013 (no data for Kosovo and Metohija), conducted by the Ministry of Health of the Republic of Serbia. For the purposes of this study, data on households and individuals over 15 years of age were used; thus, the final sample for analysis included 858 patients (aged 15 to 19 years). Researchers used demographic characteristics (age, gender, type of home, region) and socio-economic characteristics (income per household member, the index of well-being, self-assessment of health, cigarette smoking, tendency towards psychological and physical violence) as the independent variables. A χ2 test was applied to test the differences in the frequencies of categorical variables. The correlations between alcohol consumption, as the dependent variable, and the independent variables (mentioned above) were tested by logistic regression. All results less than or equal to 5% probability (p ≤ 0.05) were considered statistically significant. The prevalence of alcohol consumption among adolescents in Serbia is 51.6%. Alcohol consumption is significantly associated with sex, type of home and the index of well-being (p < 0.05). The prevalence of alcohol consumption is higher in males (57.1%), in adolescents who come from urban areas (59.3%) and in adolescents who, according to the index of well-being, belong to the wealthiest financial category (23.9%).

Open access

Hristo P. Dobrev, Nikolay G. Atanasov and Donka D. Dimitrova

Abstract

Background: Psoriasis vulgaris (PsV) is a chronic skin condition that has a major impact on health-related quality of life (HRQOL).

Aim: To determine the individual burden of PsV on HRQOL using willingness to pay (WTP) instrument.

Materials and methods: Fifty-one consecutive PsV patients were asked to evaluate their overall health and psoriasis affected health by visual analogue scale (VAS), and interviewed on 8 domains (physical, emotional, sleep, work, social, self-care, intimacy, and concentration) of HRQOL and WTP for a hypothetical cure in each domain. Two additional questions proposing 6 alternatives for therapy were also asked. The analysis is performed with descriptive and frequency statistics, Mann-Whitney and Kruskal-Wallis tests.

Results: The domains ranked highly were: physical comfort (90%), social comfort (77%), emotional health (75%) and work (53%). The following tendencies concerning WTP for top four impacted domains were found: the median WTP were the highest in the top impacted domains; the younger patients were willing to pay more than the older ones; the highest median WTP amounts appear in the lowest income group; the highest median WTP is associated with smaller psoriasis affected health VAS scores. The largest proportion and number of patients (37.3%, n=19) stated preferences for the systemic therapy. The second preferred choice was the thalassotherapy (29.4%, n=15).

Conclusions: The utility and reliability of the instrument based on the assessment of WTP stated preferences for 8 domains of HRQOL for evaluation the individual burden of psoriasis were strongly supported.