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Volume 18, Issue 2, 2026
Online ISSN: 2406-1379
ISSN: 1821-3480
Volume 18 , Issue 2, (2026)
Published: 16.06.2026.
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Contents
16.12.2020.
Original scientific paper
Comparison of adolescents with different annual quota of Physical Education classes in anthropometric parameters, physical fitness tests, and grades achievements
This study compared different groups yearly based on the different annual quota of Physical Education (PE) classes in anthropometric parameters, physical fitness tests, and grades achievements. The study included adolescents from 14 to 18 years of age, at the Croatian Industrial School in Slavonski Brod. They were 225 participants in the 2015-2016 academic year, 213 in 2016-2017, 200 in 2017-2018, and 318 in 2017-2018. Groups were determined yearly by the different annual quota of PE classes (1 or 2 per week) in the teaching program. Anthropometric measures (body height, body weight, BMI), physical fitness tests (standing long jump, sit-ups, run for 1000 m), grade in the PE class, and the general achievement grade at the end of the school year were conducted. Data collected from the 2015-2016 until the 2018-2019 academic year. Analysis of variance (ANOVA) was used to assess the differences between groups for each school year separately. Results for sit-ups and run for 1000 m test in 2015-2016, BMI in 2018-2019, and the grade of PE class in 2017-2018 and 2018-2019 academic year indicated significant differences between groups (p<0.05). The groups with 2 PE classes per week were made better results compared to the groups with 1 PE class. Therefore, increasing the number of PE classes per week should be necessary for achieving the positive, beneficial, physical, and mental outcomes of Physical Education.
Vedran Džakula, Zvonko Miljković, Leo Pavičić, Brigita Banjac
15.12.2019.
Original scientific paper
Isokinetic performance of shoulder external and internal rotators in judo and karate female elite athletes
The aim of this study was to determine the isokinetic profile of shoulder internal and external rotators in judo and karate female elite athletes.; Methods: Study sample consisted of senior 13 female karate athletes (21.23 ± 2.83 years) and 13 female judokas (21.00 ± 2.51 years). For testing the isokinetic muscle strength of the external and internal rotation of the shoulder joint, the HUMAN NORM isokinetic dynamometer has been used. Testing the maximum muscle strength of subjects was carried out at an angular speed of 60º / sec and 180 º / sec; Results: Judo female athletes had higher isokinetic peak torque for right and left shoulder internal rotators than karate athletes at 60º/s and 180º/s, with a large effect size, Cohen’s d = 0.89, 1.02, 0.97, 0.95, respectively. Also, large differences were observed between the judo and karate subjects in peak muscle torques of the right shoulder external shoulder rotator muscles of both limbs were greater in judokas than karate athletes. Isokinetic testing should be an integral part of training process in combat sports because in order to decrease the number of injuries and improve performance.
Miodrag Drapšin, Nebojša Trajković, Dragan Atanasov, Danilo Radanović, Milka Imbronjev, Roberto Roklicer, Dejan Madić, Nebojša Maksimović, Vuk Raonić, Tatjana Trivić, Patrik Drid
15.12.2019.
Original scientific paper
Physical activity and screen time among children and adolescents in Kazakhstan
Evidence is lacking that describe the status of physical activity (PA) behaviours among adolescents in Kazakhstan. The aims of the study are to examine the associations between PA and screen time behaviours (STB) among children and young adolescents in Kazakhstan. Data were pooled from the 2015/16 Childhood Obesity Surveillance Initiative (COSI) study (N=4932, 49.8% girls, mean (age)=8.77 SD (age) =0.68) and the 2017/18 Health Behaviour in Schoolaged Children (HBSC) study (N=4153, 49.3% girls, Mean(age)=12.93 SD (age)=1.64). Both studies carried out a two-stage cluster sample to determine a national representative sample. Parental reported their children’s PA levels and weekday STB time in the COSI study. In the HBSC study, young adolescents self-reported their PA levels in the past week and the amount of STB hours including TV viewing during weekdays. Data were analysed through DOI: 10.31382/eqol.191202 The number of children and young adolescents who met the PA recommendations reduced among children aged 9y (68.1%), to young adolescents aged 11y (35%), 13y (37%) and 15y (31%). Similarly, there was a reduction in the proportion of adolescents who met the STB recommendations between the ages of 9y (75%), 11y (60%), 13y (53%), and 15y (47%). Despite some limitations in the methodologies between the COSI and HBSC surveys, and reporting of behaviours, there is a clear pattern that health promoting activities lowers as children transition into young adolescents.
Kwok Ng, Shynar Abdrakhmanova, Assel Adayeva
24.06.2019.
Original scientific paper
Influence of inertial resistance squat exercise protocol based on novel exercise intensity determination on physical fitness of older adult women
The aim of the study was to examine practical implications and actual effects of the 8-week progressive resistance exercise protocol with the custom-made inertial device on sit-to-stand, 6- MWT, functional reach, up-and-go test results and Rate of Perceived exertion (RPE) among older adult women (age 65-74). Thirty-seven healthy volunteers were randomly assigned to the control group (n = 11) and to two exercise – inertial (n = 12) and traditional (n = 14) – groups. The participants performed hip belt squats on the inertial device and kettlebell squats, respectively. Exercise intensity was relatively adjusted using mass moment of inertia (MMI) of the cylindrical weight and %1RM. Time under tension was equalized between groups by the type of the exercise executed. Tests were performed before and after the intervention. Moreover, RPE was monitored after each exercise set. We used two-way repeated measures ANOVA to assess exercise-related differences in test results and to assess intensityrelated differences in RPE. The Senior Fitness Test results significantly differed in pre and post measurements, regardless of the group. A significant time x group interaction was only found in Sit-to-stand test results. RPE results significantly varied from each other across intensities. Statistically different results among groups were only found at the highest intensity (70%). The results indicate that inertial resistance exercise using the novel exercise intensity determination on the inertial device is a useful and less strenuous alternative to traditional resistance exercise among older adult women while performing squats.
Darjan Spudić, Vedran Hadžić, Janez Vodičar, Jamie Carruthers, Primož Pori
15.12.2019.
Review scientific paper
E-sports: Definition and social implications
The development of video games can be traced back to the 80s of the last century. The final phase of the gaming industry’s development brought with it another phenomenon — e-sport. “Electronic sport” presupposes playing video games in a competitive setting, with emphasis on increased “institutionalization” of gaming activity through the organization of e-sports teams and official international competitions. In order to define esports, it’s important to note that not every activity of playing video games can be described as e-sport, but every e-sport is essentially playing video games. The interest for the phenomenon of electronic sport has increased over the past several years in all social sciences, including sociology. This paper aims to present several dimensions of the “electronic sport” phenomenon, review the existing research in this field, compare various aspects of e-sports and “traditional” sports, and discuss the formation of new subcultural group gathered around video games. The key task of this paper is to examine the distance between e-sports and “traditional” sport and frame the socio-economic scale of the phenomenon.
Marko Marelić, Dino Vukušić
15.12.2019.
Original scientific paper
Influences of occupational therapy as curricular activity on to psychophysical development of hearing-impaired students
We intend to identify the effects of the occupational therapy means on self-esteem and on the psychomotor development level for hearing-impaired students. Two instruments (test-retest at an 18month interval) have been used for the hearingimpaired pupils of the “VasilePavelcu” Technological Special High School in Iasi: the scale of multidimensional attitudes for self-esteem E.T.E.S. (N=45 subjects, 24 boys and 21 girls, aged between 13 and 18) in elementary and high school, each groups of 15 subjects; the test Ozeretski – Guillmain (N= 45 de subjects: 25 boys and 20 girls, aged between 8 and 12) in primary and elementary school. Individual test applied for assessment of pshycho-motor development level. The subjects for whom we have assessed the self-esteem attended activities that included pantomime / puppet theater, manual and sports skills activities. The subjects for whom we have assessed the psycho-motor development level have attended the following activities: manual skills, painting, and sports activities. All activities were attended following a preset graph. There is a significant statistical difference to subjects in the phase of retesting to the testing phase for all the variables taken into account: social self-esteem, prospective self-esteem, total level of psycho-motor development. Self-esteem and the level of psycho-motor development are two variables that can improve the psychophysical state of children with hearing impairment through occupational therapy. Under its various forms, it can be a tool used by and in school to achieve socio-professional integration, but also training and personal development.
Oana Rusu, Demmy Rusu
15.12.2019.
Review scientific paper
Injuries in elite athletes
The purpose of this research was to review current research findings related to injuries in elite athletes. For the needs of the paper, professional and scientific literature was analyzed from prestigious scientific journals. The types of athletic injuries that occur are dependent on the athletic discipline. The most commonly injured sites in athletes are the front and back muscles of the thigh and in the ankle joint. The results of this study have indicated that the causes of most injuries are due to overstraining and overload syndrome. These causes often arise from training procedures that have been implemented inadequately and usually relate to the volume and intensity of training without the application of injury prevention techniques.
Nikola Radulović, Ilona Mihajlović, Milan Šolaja, Ratko Pavlović
15.12.2019.
Original scientific paper
Preliminary study on pre-treatment physical activity and quality of life in infertility
The increasing incidence of infertility and contrary the remaining levels of success rate of assisted reproductive therapies (ART) justify expanding the biomedical approach and underline the importance of psychosocial and lifestyle factors. The aim of the study was to examine the effects of pre-treatment physical activity (PA) on the quality of life (QoL) in infertile women. A cross sectional cohort study was carried out involving 50 female patients with infertility diagnosis. Standardized QoL questionnaires and pre-treatment PA patterns were administrated during December 2018 – April 2019 in a university hospital-based fertility centre in South-Hungary. 43% of the women reported regular exercise. Regarding GPAQ moderate intensity PA in work and recreation was preferred. They spent 4.2 hours with active transportation weekly, and 4.5 hours sedentary daily. 68.89% reached the 150min/week MVPA recommendation and 18.2% spent more than 4 hours with exercise Respondents were less satisfied with Physical Domain (57.7±7.5) and most with Psychological Domain (72.2±12.1) of WHOQOL-BREF. Lower QoL by Emotional (56.46±18.12) and Mind-Body (56.84±19.67), mediate by Social (62.76±17.40) and better values by Relational Subscale (76.48±19.62) were measured with FertiQoL. Significant difference between active and inactive group was described for Psychological domain (Z=-2.240, p=0.025). Positive correlation was found between MVPA vs Total MET and Emotional Subscale (p=0.014, p=0.009) and between work-related PA and Mindbody Subscale (p=0.006). Pre-treatment PA could positively affect QoL undergoing ART. However, for more impressive results, objective assessment of physical activity, increased number of participants, and further examinations are needed.
Viktória Prémusz, Alexandra Makai, Boróka Gács, Ágnes Nagy, Beatrix Perjés, Pongrác Ács, Kinga Lampek, Ákos Várnagy
15.12.2019.
Original scientific paper
Gotta catch’em all: Ready, set, (pokemon) GO!
Pokemon Go is a virtual reality game that mixes the smart mobile technology with real life exploration. The aim of this research is to investigate whether Pokemon Go app increases the levels of physical activity. Thirty-two healthy subjects were included in this 5-week study (12 males and 20 females, age 18-49) and they were allocated into three groups, experimental group: new trainers (N=10) and control groups: regular trainers (N=11) and nontrainers (N=11). Level of physical activity was assessed using Pedometer – Step Counter Free & Calorie Burner that counts daily walking distance in km and steps. Subjects were instructed to provide screenshots of their km recorded. At each level of measurement groups significantly differed in walking distance (p<0.01). The time did not have significant effect on the walking distance. The interaction effect was significant from fourth level to fifth level of measurement (p<005). LSD test revealed that regular trainers significantly differed from both, new and non-trainers, having the most walked distance. New trainers and non-trainers did not differ in the level physical activity in the first three weeks, but in the fourth- and fifth-week new trainers group significantly increased the levels of physical activity regarding non-trainers group (mean difference +21.688 and +15.688, respectively). In the first two weeks, the new trainers group walked 27km, and after the installation of the games, the increase was more than 10 km. It could be concluded that Pokemon Go app has impact on the levels of physical activity, but some period of time is needed for participants to learn how to play the game and enjoy it.
Bjanka Purda, Draženka Mačak
24.06.2019.
Original scientific paper
Small-sided games are more effective than instructional training for improving vertical jump performance and passing in young volleyball players
The aim of our research was to determine the effects of small-sided games on explosive strength in young volleyball players. The authors hypothesized that this program might significantly improve explosive strength in adolescent volleyball players. Thirty-eight adolescent volleyball players participated in this study (12.26±1.01). They were tested for lower body explosive power and passing accuracy. Players were randomly allocated into a small-sided games group (n = 20) and instructional training group (n = 18). Each player participated in a 12-week training program that included 3 organized court training sessions per week. Both groups made significant increases in block jump (p < 0.05) after 12 weeks of training, with significant interaction effect between the groups. There were no significant interaction effects between the groups (p>0.05) for spike jump. In SJ and CMJ results revealed a statistically significant difference between groups pre- to post- training (p < 0.05). Both groups made significant increases in passing accuracy with significant interaction effect between the groups. Small-sided games appears to be an effective way of improving explosive power and passing skills in young volleyball players. The results of this study indicate that game-based training method was more effective for lower body explosive power than traditional instructional programme.
Damir Pekas, Draženka Mačak, Anja Kostić Zobenica