Dual career (DC) experiences of Korean elite judokas before and at university.

The present study aims to explore the experiences of Korean elite judokas in managing dual career (DC) during: (a) pre-university years, (b) at the university, and (c) in preparation for the transition to the post-university life. We adopted an intrinsic case study design to gain a better understanding of the experiences of Korean elite judokas at a university. We aimed to explore a particular case in depth, focusing on the experiences of the individuals involved. Purposive sampling was applied to 12 DC athletes (seven male; five female) who are elite judokas and were in year 4 of university study at the time of the data collection. They studied at the same South Korean university and competed at an international level. Semi-structured interviews were used to collect data and thematic analysis was applied. The analysis identified four main themes: (a) DC path of prioritising sport and maintaining education, (b) Increasing sport demands and their impact on athletes' DCs, (c) Specific career development barriers of Korean judokas, (d) Coping resources and strategies and support in need. The study discusses the unique challenges and barriers as well as coping strategies of Korean judoka based on the Athletic Career Transition model, highlighting the importance of sociocultural context in their experiences.

Transitioning from junior to senior: a case study on elite judokas in South Korea.

Introduction: This study explores the experiences of Korean elite judokas during their junior to senior transition (JST), including both male and female participants, to provide empirical evidence for the development of tailored support services or programs for this target population. Methods: We recruited 12 elite judokas for our study, comprising eight males and four females, all in their first year of university. Given their preferences and availability at the time of data collection, participants were divided into three focus groups: Focus Group 1 (FG1; four male participants), Focus Group 2 (FG2; four female participants), and Focus Group 3 (FG3; four male participants). Thematic analysis was applied to analyze the data from the focus group interviews. Results: Five main themes were identified: (a) COVID-19-Induced Frustration, (b) From Big Fish in a Small Pond to Small Fish in a Big Pond, (c) Challenges in Academic Commitment, (d) Adapting to Transitions in Living Arrangements, and (e) Recognizing Support Needs for the JST. Discussion: The findings of this study provide both theoretical and practical implications that could improve judokas' experiences during the challenging physical and mental phase of JST, as well as inform the establishment of tailored support programs and schemes for successful and smooth JSTs for athletes.

Fighting for Olympic dreams and life beyond: Olympian judokas on striving for glory and tackling post-athletic challenges.

Objectives: This study explores the experiences of Olympian judokas, examining both their pursuit of excellence to compete at the Olympics and their subsequent transition out of judo. The aim is to offer empirical evidence regarding the challenges they face in realizing their Olympic dreams, and to shed light on the transitional challenges, available resources, and needs they face as they move toward post-athletic lives. Methods: We conducted semi-structured interviews with eight Olympian judokas: five males and three females, all of whom have retired from competitive judo. These participants are from Portugal (n = 1), Republic of Korea (n = 2), and the United Kingdom (n = 5). We employed thematic analysis, which led to the identification of five main themes: (a) From Dreams to Olympic Reality, (b) Facing the Void: Loss of Goals and Identity, (c) The Crucial Role of Social Support, (d) Dual Aspects of Pre-Retirement Planning, and (e) The Double Edge of Organizational Support. Findings: The findings highlight the significant challenges faced by Olympian judokas, including goal and identity loss post-retirement, and the need for comprehensive and accessible organizational support, particularly psychological assistance, to assist in their transition to post-athletic life. Implications: The findings not only enhance our understanding of judokas' experiences during transition but also offer insights that could guide the development of tailored support programs. It is critical for sport governing bodies and practitioners to apply these insights in creating comprehensive and easily accessible support systems, which will ensure a smoother transition to post-athletic life for high-performance athletes.

The study to estimate the floating population in Seoul, Korea.

Traffic-related pollutants have been reported to increase the morbidity of respiratory diseases. In order to apply management policies related to motor vehicles, studies of the floating population living in cities are important. The rate of metro rail transit system use by passengers residing in Seoul is about 54% of total public transportation use. Through the rate of metro use, the people-flow ratios in each administrative area were calculated. By applying a people-flow ratio based on the official census count, the floating population in 25 regions was calculated. The reduced level of deaths among the floating population in 14 regions having the roadside monitoring station was calculated as assuming a 20% reduction of mobile emission based on the policy. The hourly floating population size was calculated by applying the hourly population ratio to the regional population size as specified in the official census count. The number of people moving from 5 a.m. to next day 1 a.m. could not be precisely calculated when the population size was applied, but no issue was observed that would trigger a sizable shift in the rate of population change. The three patterns of increase, decrease, and no change of population in work hours were analyzed. When the concentration of particulate matter less than 10 µm in aerodynamic diameter was reduced by 20%, the number of excess deaths varied according to the difference of the floating population. The effective establishment of directions to manage the pollutants in cities should be carried out by considering the floating population. Although the number of people using the metro system is only an estimate, this disadvantage was supplemented by calculating inflow and outflow ratio of metro users per time in the total floating population in each region. Especially, 54% of metro usage in public transport causes high reliability in application.

Study of the removal difference in indoor particulate matter and volatile organic compounds through the application of plants.

This study was conducted to evaluate the ability of plants to purify indoor air by observing the effective reduction rate among pollutant types of particulate matter (PM) and volatile organic compounds (VOCs). PM and four types of VOCs were measured in a new building that is less than three years old and under three different conditions: before applying the plant, after applying the plant, and a room without a plant. The removal rate of each pollutant type due to the plant was also compared and analyzed. In the case of indoor PM, the removal effect was negligible because of outdoor influence. However, 9% of benzene, 75% of ethylbenzene, 72% of xylene, 75% of styrene, 50% of formaldehyde, 36% of acetaldehyde, 35% of acrolein with acetone, and 85% of toluene were reduced. The purification of indoor air by natural ventilation is meaningless because the ambient PM concentration has recently been high. However, contamination by gaseous materials such as VOCs can effectively be removed through the application of plants.