1
|
Humińska-Lisowska K. Dopamine in Sports: A Narrative Review on the Genetic and Epigenetic Factors Shaping Personality and Athletic Performance. Int J Mol Sci 2024; 25:11602. [PMID: 39519153 PMCID: PMC11546834 DOI: 10.3390/ijms252111602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2024] [Revised: 10/22/2024] [Accepted: 10/27/2024] [Indexed: 11/16/2024] Open
Abstract
This narrative review examines the relationship between dopamine-related genetic polymorphisms, personality traits, and athletic success. Advances in sports genetics have identified specific single nucleotide polymorphisms (SNPs) in dopamine-related genes linked to personality traits crucial for athletic performance, such as motivation, cognitive function, and emotional resilience. This review clarifies how genetic variations can influence athletic predisposition through dopaminergic pathways and environmental interactions. Key findings reveal associations between specific SNPs and enhanced performance in various sports. For example, polymorphisms such as COMT Val158Met rs4680 and BDNF Val66Met rs6265 are associated with traits that could benefit performance, such as increased focus, stress resilience and conscientiousness, especially in martial arts. DRD3 rs167771 is associated with higher agreeableness, benefiting teamwork in sports like football. This synthesis underscores the multidimensional role of genetics in shaping athletic ability and advocates for integrating genetic profiling into personalized training to optimize performance and well-being. However, research gaps remain, including the need for standardized training protocols and exploring gene-environment interactions in diverse populations. Future studies should focus on how genetic and epigenetic factors can inform tailored interventions to enhance both physical and psychological aspects of athletic performance. By bridging genetics, personality psychology, and exercise science, this review paves the way for innovative training and performance optimization strategies.
Collapse
Affiliation(s)
- Kinga Humińska-Lisowska
- Faculty of Physical Education, Gdansk University of Physical Education and Sport, 80-336 Gdańsk, Poland
| |
Collapse
|
2
|
Chen Y, Fang N, Zhu Y, Li Z, Zhu Q. Does exercise adherence during the COVID-19 pandemic contribute to improved subjective well-being? A cross-sectional study. Front Psychol 2024; 15:1448827. [PMID: 39144605 PMCID: PMC11322335 DOI: 10.3389/fpsyg.2024.1448827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Accepted: 07/22/2024] [Indexed: 08/16/2024] Open
Abstract
Introduction This study aims to investigate whether exercise adherence and positive mental character significantly affect subjective well-being among Chinese college students during the COVID-19 pandemic and whether positive mental character plays a mediating role. Methods The study employed questionnaires, including the Exercise Adherence Scale, the Positive Mental Character Scale, and the Subjective Well-Being Scale, which were administered to students across seven universities in Henan Province, China. A total of 1,001 participants were analyzed in the final sample. Data were analyzed using SPSS 21.0 for descriptive statistics, independent samples T-test, correlation, and regression analyses. Furthermore, structural equation model with AMOS was conducted to examine the potential mediating effect of positive mental characteristics on the relationship between exercise adherence and subjective well-being. Results The results indicated significant differences in exercise adherence, positive mental character, and subjective well-being between male and female participants, with males scoring higher in all three domains. Among Chinese university students during the COVID-19 pandemic, there was a significant correlation among exercise adherence, positive mental character, and subjective well-being. Exercise adherence was found to have a significant and positive impact on both positive mental character and subjective well-being. Additionally, it was found that positive mental character had a significant positive association with subjective well-being. The mediating role of positive mental character in the relationship between exercise adherence and subjective well-being was partially supported. Discussion Exercise adherence among Chinese college students had a significant positive association on both positive mental character and subjective well-being throughout the COVID-19 pandemic. The exercise adherence can directly or indirectly enhance subjective well-being through its association with positive mental character. Therefore, positive mental and subjective well-being can be enhanced by consistent physical activity even during a pandemic.
Collapse
Affiliation(s)
- Yonghuan Chen
- School of Physical Education, Zhengzhou University, Zhengzhou, China
- Department of Marine Sports, Pukyong National University, Busan, Republic of Korea
| | - Ning Fang
- School of Physical Education, Zhengzhou University, Zhengzhou, China
| | - Yulong Zhu
- School of Physical Education, Zhengzhou University, Zhengzhou, China
| | - Zhenyu Li
- School of Physical Education, Zhengzhou University, Zhengzhou, China
| | - Qiuhan Zhu
- School of Physical Education, Zhengzhou University, Zhengzhou, China
| |
Collapse
|
3
|
Jalowska P, Sokołowski M, Prokopczyk A. Influence of coping with stressful situations on changes in aerobic capacity and post-workout restitution coefficient in the period of immediate preparation for the European men's cadet wrestling championship. Front Psychol 2024; 15:1433772. [PMID: 39131862 PMCID: PMC11312380 DOI: 10.3389/fpsyg.2024.1433772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 06/17/2024] [Indexed: 08/13/2024] Open
Abstract
Aim of the study The research goal of the study was to determine the relationship between coping with stressful situations and the level of aerobic capacity and post-workout restitution, as well as the changes that occur between these variables through the period of training camp preceding international men's championship competitions in age cadet. Two research hypotheses were verified. The athletes will maintain or improve the results obtained in the performance test and the post-workout restitution coefficient during the immediate preparation period for the European Championships (H1), and the style of coping with stressful situations significantly affects changes in aerobic capacity and the post-workout restitution coefficient during the immediate preparation period for the European Championships (H2). Materials and methods The athletes of the National Men's Team of Poland in classical style wrestling (n = 16). Coping with stressful situations was examined using the Coping Inventory for Stressful Situations (CISS). Aerobic capacity was analyzed using the Maximal Multistage 20-m Shuttle Run Test. The level of post-exercise restitution was calculated using the Klonowicz coefficient of restitution. Results There was a significant increase in aerobic capacity levels (p < 0.001), a decrease in resting HR (p < 0.002), HR 1' after the test (p < 0.0031), and HR 5' after the test (p < 0.007). There was a significant correlation between emotional coping style and avoidant style focused on looking for social contacts vs. HR 3' after the test and (r = 0.60; p < 0.015) and HR 5' after the test (r = 0.57; p < 0.020). In addition, a correlation was noted between avoidant style and maximum aerobic speed (r = -0.64; p < 0.008), and avoidant style focused on substitute activities vs. distance and maximum aerobic speed (r = -0.72; p < 0.002). Conclusion It is reasonable to implement psychological training and regular monitoring of mental preparation in the national men's team training program for athletes competing in wrestling.
Collapse
|
4
|
Yang D, Wang J, He J, Zhao C. A clustering mining method for sports behavior characteristics of athletes based on the ant colony optimization. Heliyon 2024; 10:e33297. [PMID: 39021992 PMCID: PMC11252961 DOI: 10.1016/j.heliyon.2024.e33297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 06/16/2024] [Accepted: 06/18/2024] [Indexed: 07/20/2024] Open
Abstract
This study aims to enhance the precision of analyzing athlete behavior characteristics, thereby optimizing sports training and competitive strategies. This study introduces an innovative Ant Colony Optimization (ACO) clustering model designed to address the high-dimensional clustering issues in athlete behavior data by simulating the path selection mechanism of ants searching for food. The development process of this model includes fine-tuning ACO parameters, optimizing for features specific to sports data, and comparing it with traditional clustering algorithms, and similar research models based on the neural network, support vector machines, and deep learning. The results indicate that the ACO model significantly outperforms the comparison algorithms in terms of silhouette coefficient (0.72) and Davies-Bouldin index (1.05), demonstrating higher clustering effectiveness and model stability. Particularly noteworthy is the recall rate (0.82), a key performance indicator, where the ACO model accurately captures different behavioral characteristics of athletes, validating its effectiveness and reliability in athlete behavior analysis. The innovation lies not only in the application of the ACO algorithm to address practical issues in the field of sports but also in showcasing the advantages of the ACO algorithm in handling complex, high-dimensional sports data. However, its generality and efficiency on a larger scale or different types of sports data still need further validation. In conclusion, through the introduction and optimization of the ACO clustering model, this study provides a novel and effective approach for a deeper understanding and analysis of athlete behavior characteristics. This study holds significant importance in advancing sports science research and practical applications.
Collapse
Affiliation(s)
- Dapeng Yang
- College of Physical Education, Huainan Normal University, Huainan, 232038, China
| | - Junqi Wang
- School of Physical Education and Sport, Henan University, Kaifeng, 475001, China
| | - Jingtang He
- College of Physical Education, Huainan Normal University, Huainan, 232038, China
| | - Cuiqing Zhao
- College of Physical Education, Myongji University, Yongin, 17058, South Korea
| |
Collapse
|
5
|
Shuai Y, Wang S, Liu X, Kueh YC, Kuan G. The influence of the five-factor model of personality on performance in competitive sports: a review. Front Psychol 2023; 14:1284378. [PMID: 38162969 PMCID: PMC10756238 DOI: 10.3389/fpsyg.2023.1284378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/13/2023] [Indexed: 01/03/2024] Open
Abstract
Personality is considered to be a factor affecting athletic performance. However, inconsistency in the research results regarding size and even direction of the relationship. An evaluation of the evidence of the relationship between personality and athletic performance was conducted in order to summarize the evidence available. A systematic literature search was conducted in March 2023. Sport performance and the Big Five personality model were identified in our research. We used PubMed, Web of Science, Embase, Cochrane Library, Wang Fang (Chinese), Wei Pu (Chinese), and CNKI (Chinese) databases for the systematic literature search (Prospero registration number: CRD42022364000), screened 4,300 studies, and found 23 cross-sectional studies eligible for inclusion in this review. The results of this systematic analysis show that, besides neuroticism, openness, conscientiousness, extraversion, and agreeableness are all positively correlated with sports performance. Conscientiousness and extraversion are the two main personalities in team sports. Openness and agreeableness show different results in different sports, and it is not clear to which project they are beneficial. The value of personality as a possible predictor of athletic performance is generally positive. Therefore, professionals such as applied sports psychologists, coaching personnel, athletes, and sports administrators must comprehensively grasp the significance of personality's role in achieving success in major competitions. Considering these facts, sports practitioners should promote personality screening and personality development programs.
Collapse
Affiliation(s)
- Ying Shuai
- School of Sports Management, Shandong Sport University, Shandong, China
- Unit of Biostatistics and Research Methodology, School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Malaysia
| | - Shaoshen Wang
- School of Sports Management, Shandong Sport University, Shandong, China
- Unit of Biostatistics and Research Methodology, School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Malaysia
| | - Xian Liu
- School of Sports Management, Shandong Sport University, Shandong, China
| | - Yee Cheng Kueh
- Unit of Biostatistics and Research Methodology, School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Malaysia
| | - Garry Kuan
- Exercise and Sports Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kota Bharu, Malaysia
| |
Collapse
|
6
|
Ni P, Feng L. Improving collegiate student-athletes' well-being: exploring the roles of openness to experience, knowledge sharing and perceived coaching effectiveness. Front Psychol 2023; 14:1191622. [PMID: 37575425 PMCID: PMC10413552 DOI: 10.3389/fpsyg.2023.1191622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 07/13/2023] [Indexed: 08/15/2023] Open
Abstract
Introduction Collegiate student-athletes often encounter various stressors stemming from academic study and athletic training, which can potentially have negative effects on their well-being. This study investigates how collegiate student-athletes' openness to experience and their engagement in knowledge sharing influence their well-being, as well as the moderating role of perceived coaching effectiveness. Methods To examine these relationships, we propose and test a conceptual framework using an online survey conducted among collegiate student-athletes from a southeastern province of China. The participants consisted of 484 collegiate student-athletes who voluntarily participated in the study. We used regression analysis and mediation analysis to test the proposed relationships among the variables. Results Openness to experience has a positive impact on knowledge sharing (β = 0.552, p < 0.05); knowledge sharing with peers positively affects collegiate student-athlete well-being (β = 0.415, p < 0.05) and mediates the relationship between openness to experience and collegiate student-athlete well-being (β = 0.086, p < 0.05). Perceived coaching effectiveness positively moderates the relationship between openness to experience and knowledge sharing (β = 0.170, p < 0.05). Discussion Our study contributes to the collegiate student-athlete literature by shedding light on the factors that influence their well-being, with insights that bear important managerial implications for universities and coaches.
Collapse
Affiliation(s)
- Peihao Ni
- Department of Physical Education, Woosuk University, Jeonju, Republic of Korea
| | - Ligang Feng
- Department of Physical Education, Woosuk University, Jeonju, Republic of Korea
- Schol of General Education, Shenyang City University, Shenyang, China
| |
Collapse
|
7
|
Bibrowicz K, Szurmik T, Ogrodzka-Ciechanowicz K, Hudakova Z, Gąsienica-Walczak B, Kurzeja P. Asymmetry of the pelvis in Polish young adults. Front Psychol 2023; 14:1148239. [PMID: 37034935 PMCID: PMC10075204 DOI: 10.3389/fpsyg.2023.1148239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 02/23/2023] [Indexed: 04/11/2023] Open
Abstract
Introduction Symmetry is one of the criteria of correct body posture in upright position. The spatial positioning of the pelvic girdle is crucial to it. Functional and structural asymmetries within the lumbo-pelvic-hip complex can have a significant influence on the structure and functions of many human body organs and systems. The aim of the study was to present the results of inclinometer measurements of selected landmarks of the pelvic girdle in young adults aged 19-29. Methods The analysis of occurrence of spatial pelvic asymmetry was based on the authors' original, clinical classification and the significance of the body mass and height for the analyzed asymmetries. The inclinometer measurements of the selected landmarks of the pelvic girdle were performed in a sample consisting of 300 young individuals. Then, the occurrences of the spatial asymmetry of the pelvis were analyzed based on the authors' own clinical classification using alignment symmetry of the iliac crests, the anterior superior iliac spines and the trochanters major as a criterion. All study subjects with asymmetry <1 degree were treated as those with a symmetrical pelvis. Results The significance of gender, body mass and height for the analyzed asymmetries was assessed. Symmetric positioning of the iliac crests was observed in only 32% of the respondents. The iliac crest depression on the left side was more frequently observed - in 41% of the respondents. This occurred more often in women (44%) than in men (38%). In the group of women, the rotated pelvis was the most often observed (39.4%) asymmetry, while for men, it was the oblique pelvis (40%). More detailed analysis by pelvic asymmetry subtypes showed their statistical differentiation between women and men (p < 0.0001). Analysis of moderate rotation of the pelvis for men, were reported slightly higher values but these differences were not statistically significant (p = 0.253). Women, in turn, showed slightly higher mean values but here too, the differences were not statistically significant (p = 0.245). Discussion Asymmetries in the pelvis area are common; they were observed in less than three-quarters of the examined population. Oblique pelvis was found in less than a quarter of women and in more than one-third men with the predominant structural asymmetries. Rotated pelvis was observed in more than one-third of women and men with dominating functional asymmetries. There were no linear correlations between the body mass and height, and the angle of asymmetries.
Collapse
Affiliation(s)
- Karol Bibrowicz
- Science and Research Center of Body Posture, Kazimiera Milanowska College of Education and Therapy, Poznan, Poland
| | - Tomasz Szurmik
- Faculty of Arts and Educational Science, University of Silesia, Cieszyn, Poland
| | | | - Zuzana Hudakova
- Faculty of Health, Catholic University, Ružomberok, Slovakia
- Department of Health Care Studies, College of Polytechnics, Jihlava, Czechia
- SNP Central Military Hospital, Faculty Hospital, Ružomberok, Slovakia
| | | | - Piotr Kurzeja
- Institute of Health Sciences, Podhale State College of Applied Sciences, Nowy Targ, Poland
| |
Collapse
|
8
|
Piepiora P, Kindzer B, Bagińska J, Cynarski WJ. Personality and Age of Male National Team of Ukraine in Kyokushin Karate-Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127225. [PMID: 35742474 PMCID: PMC9223059 DOI: 10.3390/ijerph19127225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/02/2022] [Accepted: 06/11/2022] [Indexed: 11/25/2022]
Abstract
This article is a continuation of the research on personality in combat sports in karate. The authors’ goal was to verify the relationship between personality and age of kyokushin karate practitioners. The male national team of Ukraine in karate kyokushin (N = 7) participated in the personality study with the use of the Big Five model. The NEO-FFI (NEO Five-Factor Inventory) Personality Questionnaire was applied as a research tool and the package of statistical methods IBM SPSS Statistics 27.0 (IBM Polska, Warszawa, Poland) was used to compute the research results. The study showed that there were differences in the intensity of openness to experiences between individual samples only at the level of the statistical trend. Masters showed a higher level of openness to experiences in relation to juniors (p = 0.081) and seniors (p = 0.097). Also, a negative and strong correlation between the intensity of neuroticism and conscientiousness among the respondents was noted. A conclusion was drawn that, with age, karatekas probably manifest greater openness to experience, which is the result of their sports experience, high sports level and pro-health values of karate. On the other hand, good emotional adaptation of karatekas is strictly related to conscientiousness.
Collapse
Affiliation(s)
- Paweł Piepiora
- Faculty of Physical Education and Sports, Wroclaw University of Health and Sport Sciences, 51-612 Wrocław, Poland
- Correspondence:
| | - Bogdan Kindzer
- Faculty of Physical Education and Sport, Lviv State University of Physical Culture Named after Ivan Boberskyj, 79000 Lviv, Ukraine;
| | - Justyna Bagińska
- Faculty of Economics and Management, University of Business in Wrocław, 53-238 Wrocław, Poland;
| | - Wojciech J. Cynarski
- Institute of Physical Culture Studies, University of Rzeszów, 35-959 Rzeszów, Poland;
| |
Collapse
|
9
|
Steinmetz G, Assmann M, Hubert J, Saul D. Recreational climbers are more conscientious than recreational athletes-a case control study. BMC Sports Sci Med Rehabil 2022; 14:94. [PMID: 35614443 PMCID: PMC9131587 DOI: 10.1186/s13102-022-00483-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 05/12/2022] [Indexed: 11/13/2022]
Abstract
BACKGROUND Physiological characteristics of climbers have been extensively studied, while the personality of climbers remains poorly understood. Personality research in sports is an established field, predicting long-term success as well as short-term behavior. The goal of our study was to examine recreational climbers' personality and gain a better understanding of what makes them reach new heights. METHODS We analyzed a cohort of 50 recreational climbers and 50 non-climbing athletes (control) regarding their personality characteristics. We assessed the BMI, the self-reported climbing grade, and the years of climbing experience. To evaluate the personality of recreational climbers and athletes, we used the German version of the Big Five Inventory (BFI-2), which summarizes the personality in five main categories. RESULTS Recreational climbers scored significantly higher in conscientiousness than non-climbing athletes (p = 0.04), there was no significant difference between the other four main personality traits. Female climbers scored significantly higher in conscientiousness than male climbers (p = 0.02), while female athletes scored higher in openness than male athletes (p < 0.01). The climbing group displayed a small but significant negative correlation between conscientiousness and BMI (r = -0.39; p < 0.01). CONCLUSION In conclusion, the personality of recreational climbers and recreational athletes differs in conscientiousness, with the climbers showing higher scores. Regarding gender, we found higher levels of conscientiousness in female climbers and higher openness in female athletes in comparison to their male counterparts. A negative correlation between BMI and conscientiousness of the climbers was detected.
Collapse
Affiliation(s)
- Gino Steinmetz
- Department of Occupational and Social Medicine, Georg-August-University of Goettingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany.
| | - Mara Assmann
- Department of Trauma, Orthopedics and Reconstructive Surgery, Georg-August-University of Goettingen, 37075, Göttingen, Germany
| | - Jan Hubert
- Division of Orthopaedics, Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, 20521, Hamburg, Germany
| | - Dominik Saul
- Department of Trauma, Orthopedics and Reconstructive Surgery, Georg-August-University of Goettingen, 37075, Göttingen, Germany.,Division of Endocrinology, Department of Medicine, Mayo Clinic College of Medicine and Science, Rochester, 55901, MN, USA
| |
Collapse
|
10
|
Piepiora P, Piepiora Z, Bagińska J. Personality and Sport Experience of 20-29-Year-Old Polish Male Professional Athletes. Front Psychol 2022; 13:854804. [PMID: 35422742 PMCID: PMC9004389 DOI: 10.3389/fpsyg.2022.854804] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 02/16/2022] [Indexed: 11/13/2022] Open
Abstract
More and more research reports assert that sport experience has an influence on shaping the personality of athletes. This paper aims at validating the connection between personality and sport experience. The research subject of were young Polish male athletes (N = 1,260) aged 20-29, out of 42 sports disciplines, with sport experience ranging from 3 to 12 years. In order to test the personality of the research subjects, a five-factor model of personality called the Big Five was applied. Statistical calculations and analyses were carried out with ver. 25 of the IBM SPSS Statistics software. The research has shown that all personality traits correlate in a statistically significant way with sport experience (p < 0.001): there is a negative correlation of sports experience with neuroticism and a positive correlation with traits such as extraversion, openness to experience, agreeableness, and conscientiousness. Thus, we have identified a relationship between sport experience and personality traits of the researched Polish male athletes-the longer the sport experience, the lower level of neuroticism and higher levels of extraversion, openness to experience, agreeableness, and conscientiousness. Duration of sport experience has a considerable influence on forming the personality of Polish male athletes. However, the interpretation of just the results regarding high level of extraversion and conscientiousness distinguishes Polish male athletes (20-29 years old) from the Polish male population of non-training people.
Collapse
Affiliation(s)
- Paweł Piepiora
- Faculty of Physical Education and Sports, Wroclaw University of Health and Sport Sciences, Wrocław, Poland
| | - Zbigniew Piepiora
- Faculty of Environmental Engineering and Geodesy, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Justyna Bagińska
- Faculty of Economics and Management, University of Business in Wrocław, Wrocław, Poland
| |
Collapse
|