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This study aims to assess the sociopsychological impact that Brazilian Jiu-Jitsu’s (BJJ) can have on the subjective wellbeing of practitioners.

Data was collected through face-to-face semi-structured interviews (N = 8) and were analysed using thematic analysis by taking an inductive approach.

Improvements in the wellbeing of practitioners can be made via focusing on specific known constructs which have previously shown to increase subjective wellbeing. They included the development of mental toughness, progression towards meaningful goals and/or healthy habits and behaviours and the forming and maintaining of positive social relationships.

The present work demonstrates the psychological benefits of BJJ practice on several psychological wellbeing targets, albeit in a modest sample size.

The heightened emphasis on mental wellbeing in the general population has added increasing pressure on mental health services (Steptoe et al., 2015; Diener et al., 2018; Johnson et al., 2018; Wicking & Dean 2020). Therefore, it is of theoretical and practical advantage to explore novel ways to help individuals with both their mental health and wellbeing.

The present study seeks to add to an emerging field of research which proposes that intentional activities such as BJJ can be integrated alongside traditional approaches to therapy in their promise to help those recovering from mental health issues.

From Egypt to South Korea, traditional institutions and sources of authority are being challenged as never before. To survive and prosper, organizations and institutions adapt to the changing values and needs of people in a modern, globalizing world. This essay discusses how some organizations adapt traditional, hierarchical authority to the challenges of a dynamic, diversifying society. It presents three claims. First, modernizing, liberalizing societies generate a tendency to separation and indifference. Second, “authoritative” organizations that stress obedience to a set of beliefs and practices partly counter these atomizing tendencies and attract many, diverse persons. Third, the formation of diverse, authoritative communities is more likely among newcomers or outsiders less attached to historic, societal divides. I illustrate this with some preliminary findings and observations, mostly in USA but also in South Korea. ¹

Wesley Snipes has had an extensive career on the big screen starting out as part of the New Black Cinema movement in the 1990s working with Spike Lee and Mario Van Peebles. His roles have been incredibly varied covering drama, comedy, action, thriller, horror and Science Fiction: he has played everything from jazz saxophonist to paraplegic and drag queen to vampire, as well as recently appearing as character actor D'Urville Martin in Eddie Murphy's critically acclaimed Dolemite Is My Name. However, despite his versatility as an actor and his popularity in action films such as Demolition Man and the Blade Trilogy, Snipes has been, surprisingly, the subject of minimal analysis unlike, for example Schwarzenegger and Stallone. Unfortunately, he has also fallen foul of the direct to video curse from around 2005 as well as being sentenced to three years in prison for tax evasion. However, this should not negate Snipes' contribution to cinema, especially in the genre of action. Snipes can be a commanding presence given the right script and direction – as an expert martial artist he is lithe and agile; he has strong facial features and a powerful voice, plus the ability to deliver the wisecracking humour which often goes hand-in-hand with action performances. The aim of this chapter, then, is to focus on Snipes as an action star and, more specifically, his significance as a black action star, examining several key films which have helped to develop his onscreen persona and performance style.

There is a lack of research into the police’s physical defense and control tactics training. Approximately 600 officers in the USA form the research population and their opinions are sought about the defense and control tactics training they receive, their experiences in using these tactics and their interest in alternative techniques and training methods. Results support the idea that in‐service training might be improved. There are high levels of dissatisfaction with the training and there are hints as to how training can be improved.

The purpose of this paper is to analyze the effects of wearing compression pants of varying pressure levels on the wearer’s attention/concentration to investigate the appropriate level of compression for sport performance and confirm whether this methodology is feasible as a means of evaluating sportswear functionality.

After wearing compression pants of varying compression levels, spontaneous potentials were analyzed by calculating the spontaneous electroencephalography (EEG) indices: relative low beta (RLB) power spectrum ((12~15 Hz)/(4~50 Hz)), relative mid beta (RMB) power spectrum ((15~20 Hz)/(4~50 Hz)), and ratio of sensory motor rhythm to theta waves ((12~15 Hz)/(4~8 Hz)). The activation of brain waves was mapped and visualized from EEG data using BioScan-Map (BioBrain Inc., Daejeon, Korea).

The influence of pressure levels on brain waves was confirmed: RLB power, RMB power and RST varied by experimental clothing. CP3, the compression pants that applied moderate pressure (1.57±0.41 kPa), was associated with a relatively higher level of attention/concentration – i.e., the results confirmed that sports compression pants that apply approximately 1.0~2.0 kPa to the area between the thighs and shins are improve attention/concentration. It was further confirmed that EEG is a useful tool for evaluating the psychophysiological effects of functional apparel.

Unlike preceding studies that considered only alpha waves and the effects of clothing on comfort, this study investigated the influence of compression garments on attention/concentration.

The purpose of this paper is to help develop the understanding of the nature of coopetition (collaboration as well as competition) and is set in the context of a Taekwondo organisation.

Interviews were undertaken with 25 instructors in various clubs within New Zealand’s “International Taekwondo” (ITKD) together with 25 students and supplemented with triangulation against secondary data such as websites and media reports.

The findings suggest that coopetition can be seen from various perspectives in order that the organisation as a whole benefits. Specifically, while the ITKD is a not-for-profit firm, individual clubs may compete for revenue from students joining them as opposed to rival clubs. However, clubs collaborate in various way such as once registered, students can train free at rival clubs and resources are to some extent pooled so the ITKD as a whole benefits, e.g. sending competitors overseas and bringing in senior people to undertake a promotion grading.

The contribution is to offer insights into the nature of coopetition at the sports marketing/entrepreneurship interface by suggesting that the potential paradox of collaboration and competition can be explained by considering the benefits to an overall organisation as opposed to individual clubs within it.