The aim of this study was to establish whether there are differences between weight categories in different anthropometric measurements and handgrip strength between elite Serbian male and female sambo athletes divided into weight categories. A total of 70 elite Serbian sambo athletes participated in the study, who were participants of the World Cadet Sambo Championship held in Novi Sad. Athletes are classified into categories according to gender and official weight categories. Using anthropometry, we calculated somatotypes and hand-grip strength. For statistical analysis, we used a one-way analysis of variance and Tukey’s post hoc tests to compare group differences by weight categories. Somatotype analysis shows that a typical somatotype in male sambo athletes was endomorphic mesomorphs. In female groups, the most common somatotype in the lightest categories was mesomorphic ectomorphs, and in the heaviest categories were endomorphic mesomorphs. Examining the handgrip for both left and right hand, as well as in total, shows that there is a statistically significant difference between the categories. In total, the strength of the handgrip increases progressively in groups. In male categories, the difference exists between the first 4 groups and -78kg, as well as between -42kg and -46kg and the heaviest weight category. Differences between weight categories in female athletes were found between the lightest group and last six groups in total, in favor of the last six. Anthropometric measurements revealed a statistically significant difference between weight categories. Mesomorphy was the most dominant somatotype in male categories, while female athletes differed concerning weight category. The achieved results can serve as data to compare the somatotype and handgrip strength of elite sambo athletes on a national and international level. These findings suggest that the handgrip strength and somatotypes are the keys to success in relation to the weight category.

Abstract This study’s objective was to analyze the relationship between mental toughness and martial artists’ performance strategies. Two hundred athletes (male: 105, female: 95) with an age range of 18-36 years (mean:25.12, s=4.96) who competed at university to the national standard of martial arts participated in this study. Participants answered mental toughness questionnaires and performance strategies inventory. The Pearson correlation results showed a positive and significant relationship between mental toughness and automaticity, goal-setting, imagery, self-talk, and emotional control, and a negative and significant relationship between mental toughness and attentional control in practice. Furthermore, there is a positive and significant relationship between mental toughness and activation, relaxation, self-talk, imagery, goal-setting, and emotional control in the competition. The multiple linear regression analysis results showed that goal-setting and imagery in practice and competition, self-talk in practice, and relaxation in the competition could predict mental toughness. In analyzing the subscales of mental toughness, it was concluded that tough emotions could be loaded on eight subscales of performance strategies. In the Independent-Sample T-Test, the significant differences related to gender were that men reported higher levels of self-talk (t=3.24, p<0.001), automaticity (t=2.76, p<0.006), goal-setting (t=2.63, p<0.009), imagery (t=2.18, p<0.03) and relaxation (t=2.17, p<0.03) than women.

The evolution of basketball made the game faster, leading coaches to increase the use of pick and roll cooperation in offense. The purpose of this research was to investigate the performance time of the pick and roll every five minutes, the pair of players who participated in the pick and roll and the offensive action of the ball handler after the screen, in the European Men's Championship of 2017. The sample of the research was the sixteen games of the second round of the Championship. The instrument used for the analysis of the matches was the SportScout STA Version 3.2. Analysis with ꭓ2 (Chi-square) was used. In the results analysis, a total of 714 screens were found, of which 356 were successful (49.9%) and 358 (50.1%) failed. Most pick and rolls were performed in the second five-minute span of the third period of the games (14.8%) and in the first five-minute span of the first period (14.1%). Regarding the pairs of players participating in the action, most of them had the guard as the ball handler and the center as the screener (63.4%). In about 60% of the pick and rolls the ball handler chose to finish the action himself either by driving to the basket (31.8%) or with a shot (28.6%). The results of this study provide more information and directions to basketball coaches in order for them to better organize their training and maximize the offensive performance of their teams.

The purpose of this research was to examine the reliability and validity of Bull’s Mental Skills Questionnaire (BMSQ), measuring seven psychological skills resulting in a total scale score, within Turkey. The sample consisting of 163 males and 131 females, totaling 294 athletes, completed the 28 item BMSQ. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were undertaken. EFA results yielded a satisfactory seven-factor solution, the same as the English version. Cronbach alpha (α) reliability indices were as follows: concentration ability (0.71), anxiety and worry management (0.63), relaxation ability (0.69), imagery ability (0.73), self-confidence (0.72), motivation (0.64) and mental preparation (0.52). The BMSQ explained 62% of the total variance. Moreover, model fit indices calculated during CFA for the 28 item and 7 sub-dimensions model of BMSQ indicated an acceptable fit [Chi-Square (ꭓ²)=541.2, df=328, ꭓ²/df=1.65, Root Mean Square Error Approximation (RMSEA)=0.05, Comparative Fit Index (CFI)=0.95, Goodness of Fit Index (GFI)=0.90, Normed Fit Index (NFI)=0.89, and Non Normed Fit Index (NNFI)=0.90]. Thus, the original 7-factor solution was supported with the data collected from Turkish participants. Results demonstrated that the BMSQ is a valid and reliable instrument for the Turkish population.

Studies have shown that the performance of scheduled physical activity is positively related to a higher quality of life related to health. The objective of this study was to evaluate the level of physical activity according to the quality of life in the adult population of Paraguay in the period from November to December 2020. A descriptive, analytical cross-sectional design study, which included 211 adults of both sexes. Sociodemographic data such as age, sex and origin were collected, as well as data on physical activity (IPAQ/METS questionnaire) and quality of life (EuroQol-5D questionnaire). The predominant sex was female (89%), 53.5% resided in Gran Asunción and the average age was 34.6±10.6. The level of physical activity was mostly moderate (36.5%). The quality of life index was 0.67±0.15 and the perception of health was 79.12±18.35. Within the dimensions of quality of life, it was observed that 23% had moderate pain or discomfort and that 33% had moderate depression or anxiety. Significant differences were found between the level of physical activity and the quality of life index and the perception of health. The level of physical activity is a determinant of health-related quality of life, the greater the intensity of physical activity, the better the quality and perception of health indices in adults.

The aim of this systematic review was to evaluate the effectiveness of proprioceptive training in the prevention of lower extremity injuries, especially the ankle and knee joint, in team athletes. PRISMA recommendations were applied for this research. PubMed, ScienceDirect, and BioMed Central were used to identify relevant studies. The methodological quality of studies was assessed using the Physiotherapy Evidence Database-PEDro scale. Only 7 research met the eligibility criteria, and their outcomes were presented. Proprioceptive training has been shown to be very effective in preventing ankle injuries, especially in recurrent ankle sprains. However, in 3 of 4 studies lacked the effects of proprioceptive training in the prevention of knee and ACL injuries. Based on the results of the analyzed research, I can conclude that proprioceptive training is a very effective training tool in the prevention of ankle sprains in the population of team athletes, but proprioceptive training is not sufficient as the only training component in preventing knee injuries.

This study aimed to investigate whether the exercise-based amputee rehabilitation program improves postural control and quality of life in people with unilateral transtibial amputation (TTA). Twenty middle-aged men (48.4±3.8 y) with lower limb amputation, in a randomized-controlled longitudinal design, volunteered to participate in the study and were divided into experimental (EXP, n=10) and control (CON, n=10) groups. Before and after 8 weeks of the exercise training program, postural control performance, using one-leg standing (OLS) and Y-balance tests, was measured. The quality of life was also assessed before and after 8 weeks training period using standard questionnaires. Group x time interactions were observed for the EXP group in OLS and Y-balance tests and quality of life scores in comparison to pre- training values and the CON group (p<0.05). People with unilateral TTA who received exercise-based amputee rehabilitation program demonstrated significant improvement in balance performance with significant effects on quality of life.

Background: The purpose of this research was to investigate the relationship between cognitive abilities and manual coordination and balance in preschool children. Methods: The sample consisted of 41 preschool children aged 6.4±0.8 on average, of both sexes (30 boys and 11 girls). On top of their regular preschool activities, the children attended a school of sports for preschool children - multisport activities and exercises, twice a week. The sample of measuring instruments comprised 4 motor tests (One-leg stand test, Mann’s test, Finger to nose, Front raises) and 2 cognitive tests (Raven's Colored Progressive Matrices, Cognitive Assessment System). Data was analyzed by applying Linear and Binary logistic regression analysis. Results: Based on the results of the research, one may conclude that there is a statistically significant relation between cognitive abilities and manual coordination in the tested sample of preschool children. The defined predictor system, which consisted of cognitive tests, showed a significant relationship with the hand coordination test, which was assessed by the Finger to Nose test with the eyes closed. A significant contribution to the established relation was given by the G factor estimated by Raven's colored progressive matrices. Conclusions: Physical activities contribute to the development of motor skills and thus to the development of some cognitive abilities in children, which is of great importance for their further development.

Our current hypermodern era, as described by many authors, imposes frenzied rhythms of life on individuals exacerbated by new communication technologies. In this incessant tumult, it has become more and more difficult for humans to take time for themselves or even a moment to reflect on their daily lives. It therefore seems necessary for some to indulge in more contemplative and meditative leisure and sporting activities that reconnect with the principles of otium and thus fall into a form of hypomodernity. It is in this reflective context that this study was conducted to interview seven flowart practitioners using a qualitative approach. Halfway between artistic practice and physical activity, flowart seems to allow these individuals to reconnect with a rhythm of life that is more biological than digital. These participants see a way to slow down the frenzy of their daily life in this practice while becoming more aware of their place in a cosmic and metaphysical whole.

The purpose of the present study was to present a report of the biomechanical analysis of the winner of the Women’s Long Jump in the 2017 European Indoor Championships held in Belgrade, Serbia. All attempts of the examined jumper (age: 26.8 years; height: 1.76 m; mass: 65 kg), who won the competition with an official distance of 7.24 m, were recorded with a high-speed video camera operating at a sampling frequency of 300 fps. The kinematical parameters of the final steps of the approach and the take-off were calculated using with a panning analysis method. Results revealed that the best jump was accomplished with the highest individual value for vertical take-off velocity (2.94 m/s). The less variable parameter of the approach was the horizontal velocity (9.6±0.1 m/s), while the most variable parameter was the contact/flight time ratio for the last step (0.65±0.09). An inter-limb difference was observed for step frequency in the final steps. For the best jump, the examined athlete had an exact coincidence at the final step of the adjustment needed and the adjustment made in order to optimize the foot placement on the board. The examined jumper’s biomechanical parameters were in accordance with reports about her technique analyzed in major international competitions. The findings of the present report are in agreement with previous research concerning the importance of vertical take-off velocity, the accuracy of foot placement on the board and the observed reliance and asymmetries in the step parameters of the final approach.