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The objective of this research was to examine the Love-Hate and Identification Relationship of Individuals Participating in Euroleague Match for Recreational Purposes. The study was conducted using a relational survey methodology. The study's population comprises persons who watching recreational purpose part in the Euroleague match held in Istanbul in 2023-2024 season, while the sample consists of 178 voluntary participants selected through convenience sampling. The participants completed the Fan Love-Hate Scale and Fan Identification Scale, in addition to being asked about their gender, marital status, age, educational status, and frequency of attending football matches per week. The data collected from the personal information form and scales was entered into the IBM SPSS 24.0 software package for analysis. Statistical analyses were conducted using the Independent Sample T test and One-way Anova methods. The LSD test was employed to ascertain the dissimilarity between the groups. The Pearson correlation analysis was utilized to ascertain the association between the variables of love-hate and identity. In summary, it is evident that demographic factors, including gender and age, significantly influence fan perceptions and sports identification. In contrast, there is no substantial correlation observed between attributes such as level of education achieved and the frequency of engaging in sports activities, and the aforementioned outcomes. The significant associations identified between the Fan Love-Hate Scale and the Sports Fan Identification Scale underscore the complex relationship between fans' emotional experiences and their connection to sports. Further investigations could be conducted to go deeper into the underlying causes that contribute to these relationships and inequalities, so resulting in a more thorough understanding of fan psychology.

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BACKGROUND: Free throw is an important means of scoring in basketball games. With the improvement of basketball competition level and the enhancement of confrontation degree, the number of free throws in the game gradually increases, so the score of free throw will have an important impact on the result of the game. The purpose of this study is to explore the relationship between visual attention characteristics and hit rate of basketball players in free throw psychological procedure training, so as to provide scientific basis for basketball teaching and training. METHODS: Forty players with similar free throw abilities were randomly assigned to the experimental group (10 males, 10 females) and control group (10 males, 10 females). The experimental group was free throw psychological procedure training, while the control group was trained with routine training, Eye movement indices (number of fixations, fixation duration, and pupil dilation) and the free throw hit rate and analyzed before and after the experiment. Group differences were examined using t-tests, while paired sample t-tests were conducted to compare pre- and post-test results within each group. The training time and training times of the two groups were the same. RESULTS: There were significant differences in fixation duration, number of fixations, pupil diameter and free throw hit rate between pre-test and post-test in the experimental group (P < 0.05). Post-test, there were significant differences in number of fixations, fixation duration, pupil diameter and free throw hit rate between the two groups (P < 0.05). There was a significant positive correlation between number of fixations and free throw hit rate in top (P < 0.01), and there was a significant positive correlation between fixation duration and hit rate in front (P < 0.01). CONCLUSIONS: The psychological procedure training can improve the visual information search strategy and information processing ability of free throw, and significantly improve the free throw hit rate. There was a positive correlation between the front fixation time and the free throw hit rate, and there was a positive correlation between the top number of fixations and the free throw hit rate.

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Decision accuracy is a crucial factor in the evaluation of refereeing performance. In sports research, officials' decision-making is frequently assessed outside real games through video-based decision experiments, where they evaluate recorded game situations from a third-person perspective. This study examines whether the inclusion of the first-person perspective influences decision accuracy and certainty. Twenty-four professional officials from the first and second German basketball leagues participated in the study. The officials assessed 50 game situations from both first-person and third-person perspectives, indicating their decisions and certainty levels. The statistical analysis utilises signal detection theory to evaluate the efficacy of the first-person perspective compared to the third-person perspective in identifying rule violations and no-calls in video recordings. The findings indicate that the first-person perspective does not yield superior accuracy in identifying foul calls. However, scenes from the first-person perspective exhibit a significant 9% increase in correctly identifying no-calls. Furthermore, officials report significantly higher levels of decision certainty and comfort when using the first-person perspective. The study suggests that sports officials may benefit from incorporating additional scenes from the first-person perspective into video-based decision training. Future studies should explore whether this additional perspective improves the training effect and translates into enhanced in-game performance.

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Our main aim in this study was to analyze any differences in Win Percentages at Home (HW) that might represent a Home-Court Advantage (HA) in women's professional basketball. A secondary objective was to analyze how team ability might modify the HA effect by comparing any interaction effect between HW and team ability in games played with and without fans. We collected data from first Spanish female basketball divisions, using a linear mixed model (LMM) for repeated measures to identify differences between time periods (games with fans vs. games without fans) for HA and HW. When comparing games with and without fans, we found no significant HA and HW differences (p = .283 and p = .872, respectively). In fact, interestingly, we observed higher win values when fans were absent. Additionally, during the COVID-19 shut down stage, HA increased; but it returned to pre-pandemic levels afterward, with no significant differences between these periods (p = .482). Similarly, while HW seemed to increase during the COVID-19 shut down period and continued improving in the post-pandemic phase, there were actually no statistically significant differences (p = .772). Higher HA and HW were evident without fans during the pandemic compared to the pre-pandemic period when fans were present in women's professional basketball. During the post-pandemic period, HA decreased upon fans' return, while HW continued increasing. We discuss possible bases for these unexpected findings.

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This study investigated the recovery responses to the Total Quality Recovery (TQR), Well-Being questionnaire (WBQ), and Heart Rate (HR) responses to Submaximal Running Test (SRT), and the influence of salivary testosterone concentration (TEST) on these responses in 25 elite youth (U15) male basketball players. TQR, WBQ, and HR measurements were assessed after 48 hours of rest (T1), 24 hours after the 1st day of training (T2) and 24 hours after the 2nd day of training (T3). Salivary sampling was conducted at T1 and T3. A significant decrease was observed for TQR (F = 4.06; p = 0.01) and for WBQ (F = 5.37; p = 0.008) from T1 to T3. No difference among the three-time points was observed for HR and HR Recovery, and the TEST concentration did not influence the results. These results show that TQR and WBQ are sensitive to acute transient alterations in training loads (TL) and may be utilized to monitor recovery in elite youth basketball players. The HR related measurements presented limited responsiveness, and the TEST seems not to influence the recovery of these players who are competing at highest performance level.

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Los trabajos sobre las variables psicológicas que influyen en el rendimiento de los deportistas en sus diferentes disciplinas contribuyen a poder realizar una intervención más adecuada. En este estudio, a través del Cuestionario de Necesidades Psicológicas del Deportista (CNPD) de Dosil (2005), se describe cual es el grado de motivación, activación, confianza y atención, que nos permiten determinar un continuo en la fortaleza mental de los jugadores y de las jugadoras de Baloncesto de las competiciones profesionales y semiprofesionales en España.Esta investigación instrumental realiza un estudio comparativo transversal de carácter descriptivo y exploratorio. La muestra está compuesta de 184 baloncestistas, con edades comprendidas entre los 16 y 38 años (M= 24.20; DT= 4.65); presentando el 84.2% una experiencia de 11 o más años de práctica.El trabajo describe y compara a los y las participantes de las distintas ligas profesionales y semiprofesional en España, encontrando diferencias significativas en fortaleza mental a favor de la Liga ACB con la Liga EBA (tamaño del efecto = 1.00, grande), a favor de la Liga ACB con la LF2 (tamaño del efecto = 1.13, grande), y a favor de la LEB Plata con la LF2 (tamaño del efecto = 1.00, grande). El mayor conocimiento de las variables psicológicas, las diferencias entre jugadores y jugadoras y las particularidades de cada uno, permite una mejor intervención personal y a través de los cuerpos técnicos.(AU)

The works on the psychological variables that influence the performance of athletes in their different disciplines contribute to being able to perform a more appropriate intervention. In this study, the Athlete's Psychological Needs Questionnaire describes the degree of motivation, arousal, confidence, and attention that allows us to determine a continuum in the mental toughness of basketball players in professional and semi-professional competitions in Spain. This cross-sectional comparative study with a sample of 184 basketball players, aged between 16 and 38 years (M= 24.20; SD= 4.65); presenting 84.2% an experience of 11 or more years of practice. The work describes and compares the participants of the different professional and semi-professional leagues in Spain, finding significant differences in mental toughness in favor of the ACB League with the EBA League (effe size = 1.00, large), in favor of the ACB League with the LF2 (effect size = 1.13, large), and in favor of the LEB Plata with the LF2 (effect size = 1.00, large). The greater knowledge of the psychological variables, the differences between male and female players, and the particularities of each one, allows a better personal intervention through the technical staff.(AU)

Os trabalhos sobre as variáveis psicológicas que influenciam o rendimento dos desportistas nas suas diferentes vertentes (disciplinas) podem contribuir para realizar uma intervenção mais adequada. Neste estudo, através do Questionário de Necessidades Psicológicas do Desportista (CNPD), descreve-se qual o grau de motivação, ativação, confiança e atenção, que nos permitem determinar um continuum na resistência mental dos jogadores e das jogadoras de Basquetebol das competições profissionais e semiprofissionais em Espanha. Este estudo instrumental de natureza transversal, participaram184 basquetebolistas, com idades compreendias entre os 16 e os 38 anos (M= 24.20; DP= 4.65); apresentando 84.2% com uma experiência de 11 ou mais anos de prática. O trabalho descreve e compara os participantes das diferentes ligas profissionais e semiprofissionais em Espanha, encontrando diferenças significativas na resistência mental a favor da Liga ACB com a Liga EBA (tamanho do efeito = 1.00, grande), a favor da Liga ACB com o LF2 (tamanho do efeito = 1.13, grande) e a favor da LEB Plata com o LF2 (tamanho do efeito = 1.00, grande). Um maior conhecimento das variáveis psicológicas, das diferenças entre jogadores e jogadoras e das particularidades de cada um, permite uma melhor intervenção pessoal, por parte das equipas técnicas.(AU)

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La existencia de rachas en baloncesto ha sido estudiada en equipos (momentum del equipo) y jugadores (mano caliente/momentum del jugador), utilizando diferentes métodos y alcanzando resultados contradictorios. Sin embargo, investigación empírica reciente muestra que este tipo de fenómenos de rachas son reales y no un sesgo de la percepción. En esta investigación se analiza una forma de rachas de juego para el jugador que hasta ahora no había sido considerada: el momentum del jugador entre partidos. Empleando una muestra de 39 jugadores y 3483 partidos de las temporadas 2016/17 y 2017/18 en la NBA, se analiza los puntos anotados por minuto en situaciones de muy alto y también muy bajo rendimiento. Los resultados sugieren que hay una cierta tendencia que refleja el momentum, tanto para buenos como para malos rendimientos, pero ese resultado está influenciado por el porcentaje de uso del jugador, es decir, su capacidad para acaparar juego. La tendencia es ir hacia atrás (en torno a un 60-70%) en ladistribución de anotaciones tras un partido muy bueno, y de ir hacia delante (en torno a un 30-40%) en la distribución de anotaciones tras un partido muy malo. Las implicaciones para la toma de decisiones son discutidas finalmente.(AU)

The existence of streaks in basketball has been studied for teams (team momentum) and players (hot hand/player momentum) using disparate methods and reaching some conflicting results. However, recent empirical research shows these types of streaks are real and not an artifact of perception. In this research, we analyze a form of player streak that has not been considered before player momentum between games. Using a sample of 39 players and 3483 games of the 2016/17 and 2017/18 NBA regular seasons, we studied the distribution of points scored per minute focusing on both tails of this distribution for each player, i.e., extremely high, and extremely low performance within the same season. Results suggest that there is a certain trend reflecting momentum (for both good and bad performances), but this outcome is influenced by the usage percentage. The trend is to jump back to around 60-70% of the distribution of scores after a very good game and to jump forward to around 30-40% of the distribution of scores after a very bad game. Implications for decision-making are discussed at the end.(AU)

A existência de sequências no basquetebol têm sido estudadas em equipas (momentum da equipa) e jogadores (mão quente/momentum do jogador), utilizando diferentes métodos e chegando a resultados contraditórios. No entanto, estudosempíricos recentes evidenciaram queesse tipo de fenômeno é real e não um viés de percepção. Este estudo analisou uma forma de sequência de jogo para o jogador que até então não havia sido considerada: o ímpeto do jogador entre as partidas. Para tal, participaram neste estudo 39 jogadores e 3483 jogos das temporadas 2016/17 e 2017/18 da NBA, e foram analisados os pontos marcados por minuto em situações de alto e baixo desempenho. Os resultados sugerem que existe uma certa tendência que reflete o momentum, tanto para as boas como para as más exibições, mas esse resultado é influenciado pela percentagem de aproveitamento do jogador, ou seja, a sua capacidadede dominaro jogo. As implicações para a tomada de decisão são finalmente discutidas.(AU)

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Uno de los elementos que más determinan el rendimiento en el jugador de baloncesto es su capacidad de toma de decisiones. Por ello, es necesario ampliar los estudios que permitan entender esta capacidad. El objetivo de esta investigación fue construir y validar un cuestionario que permitiese conocer los Criterios del Jugador de Baloncesto cuando Penetra hacia la Canasta (CJB-PEC). Después de llevar a cabo una revisión de la literatura por parte de los investigadores y de sostener una mesa de discusión, se procedió a la creación de tres dimensiones y 24 ítems para el cuestionario. Posteriormente, se seleccionó a un grupo de 10 diez expertos en el objeto de estudio de esta investigación, los cuales colaboraron vía remota por correo electrónico en la evaluación cuantitativa y cualitativa del instrumento. Con el método Delphi en la primera versión tras obtener los valores medios de 10 expertos en univocidad, pertinencia e importancia a través del coeficiente de V de Aiken (0.75), con intervalos de confianza (IC) al 90% y nivel crítico al 0.70, se encontró que: la pregunta 20 no alcanzó el valor mínimo en la V de Aiken. Las preguntas 4,5,12,13,16, 20 en univocidad, la 12,18,19,20,21,24 en pertinencia, la 7,12,16, 18,19,20,21,24en importancia y la 12,18,19,20,24 en valor total no alcanzaron el nivel crítico. Con los resultados y observaciones de los expertos se modificó y construyó la segunda versión del cuestionario. Ésta tuvo 24 ítems, eliminándose las preguntas 4 y 20, reformulándose las preguntas por debajo del nivel crítico al 0.70 y agregándose 2 preguntas. Esta versión pasó a una segunda ronda con los expertos y consiguió valores superiores a 0.75 en la V de Aiken en todas las preguntas, con IC al 90%. Ninguna preguntaestuvo por debajo del nivel crítico al 0.70...(AU)

One of the elements that most determines the performance of a basketball player is their decision-making ability. Therefore, it is necessary to expand the studies that allow us to understand this capacity. The objective of this research was to construct and validate a questionnaire that would allow us to understand the Criteria of the Basketball Player when Penetrating to the Basket (CJB-PEC). After conducting a literature review by the researchers and holding a discussion, we proceeded to create three dimensions and 24 items for the questionnaire. Subsequently, a group of 10 experts in the subject of this research was selected, and they collaborated remotely via email in the quantitative and qualitative evaluation of the instrument. Using the Delphi method in the first version, after obtaining the mean values from 10 experts in clarity, relevance, and importance through the Aiken's V coefficient (0.75), with confidence intervals (CI) at90% and a critical level at 0.70, itwas found that: question 20 did notreach the minimum value in Aiken's V. Questions 4, 5, 12, 13, 16, 20 in clarity, questions 12, 18, 19, 20, 21, 24 in relevance, questions 7, 12, 16, 18, 19, 20, 21, 24 in importance, and questions 12, 18, 19, 20, 24 in the total value did not reach the critical level. Based on the results and expert observations, the second version of the questionnaire was modified and constructed. This version had 24 items, with questions 4 and 20 removed, questions reformulated below the critical level of 0.70, and 2 newquestions added. This versionwent through a second round with the experts and achieved values above 0.75 in Aiken's V for all questions, with a 90% CI. No question was below the critical level of 0.70...(AU)

Um dos elementos que mais determina o desempenho de um jogador de basquetebol é a sua capacidade de tomar decisões. Assim, torna-se necessário expandir os estudos que nos permitam compreender essa capacidade. Desta forma, o objetivo deste estudo foi construir e validar um questionário para avaliar os Critérios do Jogador de Basquetebol ao Penetrar na Cesto (CJB-PEC). Após a realização de uma revisão da literatura pelos investigadores e uma discussão, procedemos à criação de três dimensões e 24 itens para o questionário. Posteriormente, foi selecionado um grupo de 10 especialistas no assunto desta pesquisa, que colaboraram remotamente por e-mail na avaliação quantitativa e qualitativa do instrumento. Usando o método Delphi na primeira versão, após obter os valores médios de 10 especialistas em clareza, relevância e importância por meio do coeficiente V de Aiken (0.75), com intervalos de confiança (IC) a 90% e um nível crítico de 0.70, constatou-se que: a pergunta 20 não atingiu o valor mínimo no V de Aiken. Asperguntas 4, 5, 12, 13, 16, 20 em clareza, as perguntas 12, 18, 19, 20, 21, 24 em relevância, as perguntas 7, 12, 16, 18, 19, 20, 21, 24 em importância e as perguntas 12, 18, 19, 20, 24 no valor total não atingiram o nível crítico. Com base nos resultados e observações dos especialistas, o questionário passou por uma modificação e construção da sua segunda versão. Essa versão continha 24 itens, com as perguntas 4 e 20 removidas, as perguntas reformuladas abaixo do nível crítico de 0.70 e 2 novas perguntas adicionadas. Esta versão passou por uma segunda rodada com os especialistas e alcançou valores acima de 0.75 no V de Aiken para todas as perguntas, com um IC de 90%. Nenhuma pergunta ficou abaixo do nível crítico de 0.70...(AU)

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Previous research indicates that performing passes with a head fake in basketball leads to increased response initiation times and errors as compared to performing a pass without a head fake. These so-called fake production costs only occurred when not given the time to mentally prepare the deceptive movement. In the current study, we investigated if extensive practice could reduce the cognitive costs of producing a pass with head fake. Twenty-four basketball novices participated in an experiment on five consecutive days. A visual cue prompted participants to play a pass with or without a head fake either to the left or right side. The cued action had to be executed after an interstimulus interval (ISI) of either 0 ms, 400 ms, 800 ms or 1200 ms, allowing for different movement preparation times. Results indicated higher response initiation times (ITs) and error rates (ERs) for passes with head fakes for the short preparation intervals (ISI 0 ms and 400 ms) on the first day but no difference for the longer preparation intervals (ISI 800 ms and 1200 ms). After only one day of practice, participants showed reduced fake production costs (for ISI 0 ms) and were even able to eliminate these cognitive costs when given time to mentally prepare the movement (for ISI 400 ms). Accordingly, physical practice can reduce the cognitive costs associated with head-fake generation. This finding is discussed against the background of the strengthening of stimulus response associations.

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Dispositional mindfulness promotes adaptive responses to pressure situations and reduce anxiety and emotional distress, which are common manifestations in sport. The aim of this study was to investigate the role of mindfulness characteristics in the display of irrational performance beliefs and intolerance of uncertainty amongst a sample of elite female basketball players (N = 67, Mage = 25.73 years, SD = 4.4). An online Qualtrics survey containing demographic items, the Mindfulness Attention Awareness Scale, Irrational Performance Beliefs Inventory, and Intolerance of Uncertainty Scale was used to collect the study data, which were analysed using SPSS. The results from both Pearson correlation coefficient and simple linear regression analyses indicated that higher levels of dispositional mindfulness are significantly related to elite female basketball players having fewer irrational beliefs about their performance and being more tolerant of uncertain situations in their sport. One-way analysis of variance further indicated a significant difference between low, average, and high mindfulness groups, with Tukey's post-hoc analyses confirming that participants with high mindfulness displayed significantly fewer rigid, extreme, self-defeating performance beliefs in sport, and were less prone to impulsive reactions to uncertain circumstances compared to participants with low mindfulness. Sport psychology practitioners are encouraged to consider the integration of mindfulness assessment and training protocols with traditional cognitive behaviour modification approaches to counter female basketball players’ display of distorted beliefs in sport and adverse reactions to ambiguous experiences. (AU)

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INTRODUCTION: Sports activity can affect balance ability, increasing injury risk. Single session of acute exercise can also alter cognitive function, potentially linked to balance ability. In this study, we examined the changes in cognitive function and static and dynamic balance abilities before and after the basketball game, and a dual-task was used to evaluate static balance ability. METHOD: We measured the rating of perceived exertion (RPE), static and dynamic balance ability, and cognitive function in 12 male university basketball players before and after basketball game. We compared the differences in each measurement before and after the game using a t-test and examined the correlation between RPE, cognitive function, and balance ability. RESULTS: We found RPE and cognitive function increased after the game. However, static balance ability in the dual-task and dynamic balance ability did not change before and after the game. Positive correlation found pre-RPE with SC-total and DO-locus length, and SEBT-ANT. Negative correlation found post-RPE with SEBT-PL, and positive correlation found ΔRPE with DO-peripheral area. DISCUSSION: To enhance post-game balance ability, it is crucial to assess pre-game RPE for each player. Also, the understanding game-induced load is imperative as high post-game RPE negatively affects static and dynamic balance ability. Therefore, game load management strategies must be employed to ensure optimal balance ability. CONCLUSION: Because RPE before and after a basketball game is related to balance ability after the game, it is important to understand the amount of load on the players.

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This paper explores the innovative integration of dance culture application modeling within the context of basketball, with a dual emphasis on sports science and enterprise applications. The convergence of dance and basketball offers a unique opportunity to enhance player performance, promote physical conditioning, and facilitate dynamic teamwork. In sports science, the infusion of dance-inspired exercises and routines into basketball training regimens has proven instrumental in enhancing athletes' agility, coordination, and balance. These fundamental attributes are essential for basketball players to excel in dribbling, shooting, and defensive maneuvers. Furthermore, dance culture application modeling contributes to optimal physical conditioning, bolstering cardiovascular endurance and muscular strength, and basketball players maintain peak performance levels throughout the game. Beyond the court, the marriage of dance and basketball presents exciting prospects for enterprises within the sports industry. Team cohesion and motivation are vital for success, and dance culture modeling fosters teamwork, synchronization, and camaraderie among players. Such attributes translate into better on-court performance and contribute to a more marketable and engaging sports product. This approach can be a potent tool for branding, fan engagement, and marketing initiatives within the basketball ecosystem. Additionally, dance culture application modeling can play a pivotal role in injury prevention and rehabilitation, safeguarding players' physical well-being and prolonging their careers. It also offers a refreshing avenue for player wellness during off-seasons and recovery periods. This abstract showcases the promising intersection of dance culture application modeling with basketball, transcending conventional training methodologies. Through its amalgamation of sports science and enterprise applications, it not only elevates player performance but also enhances the appeal and viability of basketball as a dynamic and marketable sport.(AU)

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Functional training, since Beijing Olympic Games, from field of medical rehabilitation to field of competitive sports, advanced scientific training concepts and training methods have gradually been recognized by domestic competitive sports workers and coaches. Therefore, functional training should be developed to grass-roots team to lay a solid foundation for sustainable development of competitive sports in our country. In this paper, a complete set of functional physical training program is designed by using methods of literature, expert interviews, experiments, mathematical statistics, and logical analysis. Finally, it is found that functional training can improve physical coordination of men's basketball. And symmetry, flexibility of athletes' ankle joints, thoracic spine, shoulder joints and stability of knee joints and cores have been improved, reducing probability of sports injuries, providing a theoretical basis for innovative scientific training of male basketball players in my country.(AU)

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OBJECTIVES: The differences in sporting environments between open and closed skill sports impose unique demands on athletes' cognitive and motor capabilities. Our study aims to investigate and compare cognitive function and Heart Rate Variability (HRV) among individuals involved in different sports, namely basketball, swimming, and a sedentary non-sports group. MATERIALS AND METHODS: The study consisted of three groups, namely basketball players, swimmers, and sedentary individuals, with each group comprising twenty-six participants. HRV was assessed with the help of PowerLab. Cognition was assessed using the Ebbinghaus Memory Procedure Test (EMT), Go/No-Go Task (GNG), Color Stroop task, Trail Making Test (TMT), and Letter Cancellation test (LCT). RESULTS: The results of the Multivariate Analysis of Covariance (MANCOVA) analyses indicated that there was significance between the groups. However, no significant differences were observed between swimmers and basketball players in cognitive functions and HRV measures. Overall, the sport group outperformed the sedentary group. Specifically, basketball players and swimmers completed LCT and TMT faster than the sedentary group (p = 0.044 and p < 0.001 for basketball players, p = 0.002 and p = 0.001 for swimmers). Additionally, basketball players took fewer trials in EMT (p = 0.013) and less time (p = 0.026) compared to the sedentary group. CONCLUSION: The results of the study indicate that sports training, regardless of sport type, positively impacts overall cognitive function. However, no significant differences were observed in cognitive task performance and HRV measures between open and closed skill sport players. These findings suggest that sports can enhance cognitive functions, regardless of the sport played.

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Antecedentes: la vinculación entre el estrés, la ansiedad y el rendimiento deportivo constituye un relevante tema de interés en el área de la psicología deportiva, si bien existe poca evidencia acerca de cómo diferentes variables pueden afectar a los niveles de ansiedad y así alterar el rendimiento deportivo. Objetivo: comparar las relaciones existentes entre las características psicológicas relacionadas con el rendimiento deportivo y ansiedad precompetitiva en una muestra de deportistas federados y no federados que difieren en sexo, edad y deporte practicado. Método: en este estudio han participado 202 deportistas con edades comprendidas entre los 18 y 30 años (X = 22,35; DT = 3,69) que practican fútbol, baloncesto, atletismo y/o natación. Resultados: se ha encontrado que existe relación entre las habilidades psicológicas relacionadas con el rendimiento deportivo y la ansiedad precompetitiva. Asimismo, se ha hallado que solo existen diferencias estadísticamente significativas en la ansiedad somática dependiendo de si el deporte practicado es individual o grupal, así como diferencias en los niveles de ansiedad precompetitiva según el sexo, si bien no hay relación diferencial en los niveles de ansiedad respecto a la edad. Conclusiones: a través de este estudio se ha pretendido aportar más evidencia empírica al ámbito de la psicología deportiva y se valoran sus beneficios.(AU)

Introduction: The link between stress, anxiety and sports performance is a relevant topic of interest in the area of sports psychology, although there is little evidence about how different variables can affect anxiety levels and thus alter sports performance. Objective: Compare the relationships between psychological characteristics related to sports performance and pre-competitive anxiety in a sample of federated and non-federated athletes differing in sex, age and sport practiced. Method: 202 sportsmen and women aged between 18 and 30 years (X = 22.35; SD = 3.69) who play football, basketball, athletics and/or swimming participated. Results: it was found that there is a relationship between psychological skills related to sports performance and pre-competitive anxiety. Likewise, it was found that there are only statistically significant differences in somatic anxiety depending on whether the sport practised is individual or group, as well as differences in the levels of pre-competitive anxiety by gender, although there is no differential relationship in the levels of anxiety with respect to age. Conclusions: the aim of this study is to provide more empirical evidence to the field of sport psychology and to assess its benefits.(AU)

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BACKGROUND: Motor impairment is a common consequence of stroke causing difficulty in independent movement. The first month of post-stroke rehabilitation is the most effective period for recovery. Movement imagination, known as motor imagery, in combination with virtual reality may provide a way for stroke patients with severe motor disabilities to begin rehabilitation. METHODS: The aim of this study is to verify whether motor imagery and virtual reality help to activate stroke patients' motor cortex. 16 acute/subacute (< 6 months) stroke patients participated in this study. All participants performed motor imagery of basketball shooting which involved the following tasks: listening to audio instruction only, watching a basketball shooting animation in 3D with audio, and also performing motor imagery afterwards. Electroencephalogram (EEG) was recorded for analysis of motor-related features of the brain such as power spectral analysis in the [Formula: see text] and [Formula: see text] frequency bands and spectral entropy. 18 EEG channels over the motor cortex were used for all stroke patients. RESULTS: All results are normalised relative to all tasks for each participant. The power spectral densities peak near the [Formula: see text] band for all participants and also the [Formula: see text] band for some participants. Tasks with instructions during motor imagery generally show greater power spectral peaks. The p-values of the Wilcoxon signed-rank test for band power comparison from the 18 EEG channels between different pairs of tasks show a 0.01 significance of rejecting the band powers being the same for most tasks done by stroke subjects. The motor cortex of most stroke patients is more active when virtual reality is involved during motor imagery as indicated by their respective scalp maps of band power and spectral entropy. CONCLUSION: The resulting activation of stroke patient's motor cortices in this study reveals evidence that it is induced by imagination of movement and virtual reality supports motor imagery. The framework of the current study also provides an efficient way to investigate motor imagery and virtual reality during post-stroke rehabilitation.

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ABSTRACT Training monitoring is important in the development process of the athlete. The objective of the study was to characterize the psychophysiological response and physical demands of soccer, basketball, handball, and volleyball with young athletes. The sample consisted of 61 young athletes of both genders and members of team sports, 10 training sessions for each modality were monitored. The psychophysiological responses were monitored by the session rating perception of exertion (Session RPE) and training impulse (TRIMP). The physical demands were, distance covered (DC), DC by speed zone (DC_Z1, DC_Z2, DC_Z3, DC_Z4, DC_Z5), number of sprints, and duration of the session. In addition, the recovery status (TQR) was also collected. Differences were noted between duration (p<0.001), DC_Z1 (p<0.017), DC_Z2 (p<0.05), DC_Z3 (p<0.05), DC_Z4 (p<0.003), DC_Z5 (p < 0.05), sprints (p < 0.001), TRIMP (p<0.02), Session RPE (p<0.05) and TQR (p<0.007). In psychophysiological responses, handball showed more time in zones 4 and 5 than other modalities. According to physical demands, basketball, and handball had a higher number of sprints and also higher values ​​in DP_Z5. Therefore, the simultaneous monitoring of physical demands and psychophysiological responses provides supplementary information in monitoring young athletes.

RESUMO O monitoramento do treinamento é importante no processo de desenvolvimento dos atletas. O objetivo do estudo foi comparar as respostas psicofisiológicas e as demandas físicas de jovens atletas de futebol, basquete, handebol e voleibol. A amostra foi constituída por 61 indivíduos de ambos os gêneros que foram acompanhados ao longo de 10 sessões de treino de cada modalidade em questão. As respostas psicofisiológicas foram monitoradas através da percepção subjetiva de esforço da sessão (PSE da sessão) e o impulso de treinamento (TRIMP). As demandas físicas analisadas foram a distância total percorrida (DP), DP por zona de velocidade (DP_Z1, DP_Z2, DP_Z3, DP_Z4, DP_Z5), número de sprints e a duração das sessões. Além disso, o estado de recuperação (TQR) também foi analisado. Foram observadas diferenças significativas entre a duração das sessões (p<0,001), DP_Z1 (p<0,017), DP_Z2 (p<0,05), DP_Z3 (p<0,05), DP_Z4 (p<0,003), DP_Z5 (p <0,05), número de sprints (p < 0,001), TRIMP (p<0,02), PSE da sessão (p<0,05) e TQR (p<0,007). Nas respostas psicofisiológicas, o handebol apresentou mais tempo nas zonas 4 e 5 em comparação demais modalidades. Nas demandas físicas, o basquete e o handebol apresentaram maior número de sprints e também maiores valores na DP_Z5. Dessa forma, o monitoramento em conjunto das demandas físicas e respostas psicofisiológicas fornecem informações complementares no monitoramento de jovens atletas.

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In the current environment of globalization, the communication between people is gradually getting closer, and the society is becoming more and more complex. With the continuous development and progress of science and technology, people are more skilled in applying science and technology to their own concerns. College students are about to enter the society, will feel multiple pressure from family, school, and society, study and life problems will gradually convert into mental health problems, and we need to use machine learning basketball exercise to positively affect the mental health quality of college students. The improvement of living conditions makes people pay more attention to their physical and mental health, and learn to use machine learning sports reasonably, not only basketball exercise, to improve mental health diseases. However, we need to use machine learning to identify the different effects of different basketball exercise intensity on mental health, in order to ensure that the most appropriate basketball exercise intensity brings good aspects to the mental health of college students. Through the investigation and data sampling, it can be concluded that the machine learning-based basketball exercise intensity has a positive impact on the mental health of college students.

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Enthusiasm for sports competitions is consistently high. In sports competitions, athletes not only need to have superb skills but also need a strong psychological quality. Usually, athletes with high psychological quality can make their technical level outstanding; on the contrary, for athletes with low psychological quality, even if the level of competition is very high, it is difficult to achieve excellent results. This study analyzes the data of basketball players to study the influence of the stability of different players' psychological quality on the performance of basketball games. The "mental state" of basketball players is negatively correlated with their performance in basketball games, and the players' psychology often shows signs of tension during basketball games. This tension is the result of a variety of psychological effects, and the number of times of tension is different under different psychological quality stabilities. The experimental analysis results of this study show that through the data analysis of the psychological factors affecting basketball players, the key factors affecting their psychology have been explored, and strategies and methods that can effectively cultivate the psychological quality of basketball players have been found, in order to provide a reference for improving the psychological quality of basketball players.

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In order to improve the basketball theory and provide theoretical and intellectual support for the scientific, mental health, and sustainable development of basketball, we propose to take the development dynamic mechanism of juvenile basketball as the research object and make a systematic and in-depth study on the dynamic mechanism, the cultivation of Chinese and foreign juvenile basketball reserve talents, and the dynamic dilemma and influencing factors of juvenile campus basketball development by using the methods of literature, questionnaire, and expert interview. A method of cultivating the ring tone of juvenile basketball is proposed. This method is based on Chan algorithm. When the target is close to each base station, the first estimation also needs an initial value to solve the initial solution estimation matrix. The method is also based on multivariate Taylor algorithm, taking into account the measured distance between the targets to be measured, so it will get some useful information, which will improve the positioning accuracy. The experimental results show that the accuracy of the algorithm used in this paper is more than 85%. However, the accuracy of rebounding and passing recognition and prediction is low. The recognition accuracy and prediction accuracy of the test set are slightly lower than that of the effective set, which shows that the performance of the target detection system model in this paper can be further improved through more significant training examples. It is proved that the algorithm based on Taylor ring can meet the needs of teenagers in the basketball coordination and mental health.

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