Background: The application of whole body vibration (WBV) as a warm-up scheme has been receiving an increasing interest among practitioners. Objectives: The aim of this study was to determine the effect of loaded and unloaded WBV on countermovement jump, speed and agility. Patients and Methods: Twenty-one healthy male college football players (age: 20.14 ± 1.65 years; body height: 179.9 ± 8.34 cm; body mass: 74.4 ± 13.0 kg; % body fat: 9.45 ± 4.8) underwent randomized controlled trials that involved standing in a half squat position (ST), ST with 30% of bodyweight (ST + 30%), whole body vibration at f = 50 Hz, A = 4 mm (WBV), and WBV with 30% bodyweight (WBV + 30% BW) after a standardized warm-up. Post measures of countermovement jump, 15-m sprint, and modified t-test were utilized for analyses. Results: One way repeated measures ANOVA revealed a significant difference in the countermovement jump performance, F (3, 60 = 9.06, η2 = 2.21, P = 0.000. Post-hoc showed that WBV + 30% BW posted significant difference compared to (P = 0.008), ST + 30% BW (P = 0.000) and WBV (P = 0.000). There was also a significant difference in the sprint times among interventions, F (3, 60) = 23.0, η2 = 0.865, P = 0.000. Post hoc showed that WBV + 30% BW displayed significantly lower time values than ST (P = 0.000), ST + 30% BW (P = 0.000) and WBV (P = 0.000). Lastly, there was a significant difference in the agility performance across experimental conditions at F(2.01, 40.1) = 21.0, η2 = 0.954, P = 0.000. Post hoc demonstrated that WBV have lower times than ST (P = 0.013). Also, WBV + 30% BW posted lower times compared to ST (P = 0.000), ST + 30% (P = 0.000) and WBV (P = 0.003). Conclusions: Additional external load of 30% bodyweight under WBV posted superior gains in countermovement jump, speed and agility compared to unloaded WBV, loaded non-WBV and unloaded non-WBV interventions.

KAPIDZIC, A.; HASUKIC, S.; MEHINOVIC, J.; ATIKOVIC, A.; MUJANOVIC, A. N. & MUJANOVIC, E. Body mass indexand volume of fat tissue of unemployed men in the Tuzla Canton. Int. J. Morphol., 33(1):158-163, 2015.SUMMARY: The main objective of this study was to obtain information on indicators of obesity among the unemployed malesubjects from the Tuzla Canton. Also, we wanted to determine whether there are significant differences in the observed parametersbetween subjects in relation to age. The main criterion for the selection of test subjects is that they are unemployed. This is because wefelt that those persons have more free time for practicing sports and recreational activities, and there is a very small number of studies inthe area of Tuzla Canton with the characteristics of the sample. For the purpose of this research we applied analysis of percen tage/ratio,t-test for independent samples and the Mann-Whitney U Test. Applied analysis showed that the increased value of Body Mass Index(BMI) and to the account of increased amounts of body fat has 31.5% of the respondents. It also found that there are significantdifferences in the variables Body Mass Index (BMI), body fat percentage (% FAT) and the total weight of fat mass (in kg) in the body(FATMAS-kg) in favor of the subjects belonging to the older age group. The results indicate the existence of the problem of obesity inmales from Tuzla Canton, especially in the older age group. It is therefore necessary in adolescence or even earlier, to start with educationand systematic practice of sports and recreational activities with respect to dietary habits.KEY WORDS: Body Mass Index; Fat Tissue; Unemployed Men.