The present study was designed to evaluate the anthropometric parameters, body composition
and anaerobic power components of elite male and female basketball players and compare
them in relation to gender and specific sport demands. The study group consisted of 43 elite
national level athletes: 22 male basketball players (aged 20.3±2.92) and 21 female players
(aged 19.5±2.96). The significant differences were noted in fat body mass, triceps and lower
body region skinfolds, wigh higher values in females, while higher values of forearm, upper
arm and waist circumference were noted in males. Comparing Wingate test parameters,
higher values of absolute anaerobic power, explosive power, and absolute anaerobic capacity
were recorded in male players, while there was no significant difference in relative anaerobic
power, and relative anaerobic capacity values between genders. Morphometric profile in elite
sport should accompany physiological profile in order to monitor improvements during
training process and sport performance.

The aim of this study is to investigate the differences in parameters of bone mineral
density in elite track and field athletes and sedentary male controls, respectively non-athletes.
The research included 15 athletes who are members of the national junior track and field team
of Serbia and 15 non-athlete boys, aged 17 to 19 years. Sahara (Hologic, Inc., MA 02154,
USA) clinical sonometer was used for assessing bone density. The parameters of bone
mineral density were measured, Speed of sound (SOS), Broadband ultrasound attenuation
(BUA), Bone mineral density (BMD) and Width of the heel bone, as well. T-test for two
independent groups confirmed that there is statistically significant difference between elite
track and field athletes and non-athletes in all measured parameters (p < 0.05). The results of
this study confirm the significant effects of practicing track and field events on increasing
bone mineral density and preventing osteoporosis. 

Importance of physical education and its placment in the educational system are known for a
long period of time. Many resreaches have been conducted in order to determine the extent to
which physical education positively influences students. Results of some studies show that
physical education classes are unsatisfactory and inappropriate, given the circumstances- age
and individual skills of students, their needs and interests (Arunovic, 1978; Visnjic, 1983;
Krsmanovic, 1988, 1995). Main reasons for ineficinet physical education classes can be found
in the bad concept of modelling teaching syllabuses and small number of physical education
classes per week (Krsmanovic, 1995). The aim of the study is determining differences
between examinees in terms of motor skills, depending on material and technical conditions
as well as method of class organisation that is realization of the curriculum. The participants
in the study were 142 adolescents, 17 years of age (± 6 months ). In order to assess motor
skills 12 motor tests were used. Data processing was done by applying multivariate analysis
of covariance (MANCOVA), significance of difference was determined by analysis of
variance (ANOVA), while differences among examinees of the experimental and the control
group were determined by discriminant analysis. After the experimental treatment, it was
determined that there was statistically significant difference between the experimental and the
control group within the motor skills system. 

Physical education has an important role in students' preparation for lifelong fitness
participation. Since swimming is considered as one of the most beneficial fitness activities,
swimming competencies, including knowledge of safety routines, should be developed
through physical education classes. In order to examine swimming competencies of
elementary and secondary school students, the cross-sectional study was conducted. The
sample consisted of 143 students of both gender (71 elementary school students, 72 secondary
school students). The previously used questionnaire was modified (Moran, 2006) and the data
concerning selfevaluation of swimming skills, safety information resources and life saving
skills are presented. Data were analyzed by descriptive statistics. Results suggest that there are
no significant differences between elementary and secondary school students in
selfevaluations of swimming skills, but they differ in safety information resources they use.
Schools fail in their mission to educate and develop students' swimming competencies.