Notational Comparison Analysis of Outdoor Badminton Men's Single and Double Matches.

The objectives of this study were to determine the results of the analysis of single and double outdoor badminton men's matches and to determine the relationship between technical and tactical aspects in a study organized by the BWF (Badminton Word Federation), on a sand surface. Twenty men's singles matches were recorded using video cameras and analysed with a Dartfish video analysis software package. Along with this, percentages of use of technical elements were analysed by comparing the different modalities. For the single format Lob, Clear, Drop, Smash, Drive were used, different from the double format that used Lob, Clear, Drop, Smash, Drive. The study confirmed the applicability of computerized notation analysis to determine the characteristics of Outdoor Badminton on sand.

Corrigendum: Performance Indicators in Young Elite Beach Volleyball Players.

[This corrects the article DOI: 10.3389/fpsyg.2019.02712.].

Perfectly Active Teenagers. When Does Physical Exercise Help Psychological Well-Being in Adolescents?

In the context of physical activity and sport, perfectionism and the regular practice of physical activity are related to psychological well-being and the regulation of psychological resources necessary for adaptation to effort and satisfaction. At the same time, the most active students are also those who show greater appetites for physical education classes. The goal of this work was to identify the influence of perfectionist beliefs and the regularity of the practice of physical exercise on psychological well-being. The participants were adolescents (n = 436) aged between 14 and 19 years (M = 16.80, SD = .77). They were administered the Multidimensional Perfection Scale, the Psychological Wellbeing Scale, the Global Physical Activity Questionnaire (GPAQv2), and a sociodemographic questionnaire. The results showed, under a non-random and transversal design, that the participants gave important value to physical exercise because they feel both active and vigorous. Regarding perfectionism, the functional aspects of perfectionism (expectations of achievement and organization) correlated positively, while the dysfunctional aspects (fear of committing errors and external expectations) did so negatively with the importance given to physical exercise performed by adolescents; this in turn positively predicted psychological well-being. In this way, the hypothesized model contemplated the relevance of the included variables and reflected the mediation of the degree of importance given to the practice of physical exercise on perfectionist beliefs and psychological well-being. Currently, most physical activity practice proposals for adolescents focus on federated and structured environments for competition, and those that deal with recreational and health-oriented sports are far less common. Hence, "the perfect way of doing sports" for a teenager should be accompanied by cognitive schemes aimed at strengthening psychological resources that allow the regulation of beliefs, attitudes, and behaviors.

Performance Indicators in Young Elite Beach Volleyball Players.

PURPOSE: The aim of this study was to analyze tactical and technical behavior across different ages and genders in young, elite beach volleyball players. METHODS: Forty teams from the Under-18, Under-20, Under-21, and Under-22 from semifinals and finals of the 2016 World Championships and the 2016 European Championship were analyzed. The sample was composed of 69 sets. The variables studied included: Rally time, set time, match time, serve efficacy (standing serve, floating serve, and jump serve), setting efficacy (forearm, overhand, other, and 2nd attack), attack efficacy, and block efficacy. Student's t and Mann-Whitney U-tests were used to analyze specific differences between categories. RESULTS: Significant differences (p < 0.05) in the pass performance, forearm pass in men (from 78.2 to 49.1%), and overhand pass in men (from 12.2 to 40.45%). In addition, in women forearm pass (from 88.5 to 76.3%) and overhand pass in women (from 1.2 to 9.35%). No significant differences in the effectiveness of attack, rally time, serve, and block efficacy. CONCLUSION: Tactical considerations and gender-specific differences in technical variables may be important for training in young players.