A Consideration of Why Active Participation in Sport and Leisure Might Reduce Criminal Behaviour

This paper contributes to sport, sociology and the body literature by exploring the ‘exposure and effect’ of culture, in particular bodily practices placed on three adolescent swimmers immersed in the Australian swimming culture using an ethnographic framework. The research reported is particularly notable as it addresses two distinct time points in the swimmers’ lives. The first section explores the adolescent experiences of three female swimmers within the cultural context of Australian swimming by articulating some of the specific body practices and ‘memes’ (ideas, symbols and practices) that they were exposed to and/or engaged within relation to the body. The second section of this paper focuses on the same three swimmers in the ‘present day’, some 10–30 years after being immersed in the Australian swimming culture as adolescents. It excavates their body practices and the relationships they now have with their body, and thus pursues the sustained impact of the body practices and ‘memes’ they were exposed to as adolescents. Analysis employs concepts drawn mainly from Foucault, particularly his thesis in regard to ‘disciplinary power’, ‘regulation’ ‘classification’ and ‘surveillance’. At a club (amateur) and National level, Australian swimming is revealed as an institution, a site and culture where particular techniques of power have become concentrated and have been brought to bear on individuals in systematic ways, with sometimes damaging effects arising for athletes’ long-term health and well-being, particularly if the individuals concerned continue to engage with cultural practices in regard to the body post-career.     

The effect of periodized resistance training on accelerative sprint performance

The purpose of this study was to assess the effect of periodized resistance training on accelerative sprint performance. Sixteen physically active men participated in a randomized controlled study. An experimental group (n = 10) completed an 8-week periodized resistance training intervention, while a control group (n = 6) did not train. Pre- and post-training measures of 20-m straight-line sprint time, including a 10-m split, maximum strength, and explosive strength, were recorded. Flight time, stance time, stride length, and stride frequency were quantified from digitized video recordings of the first three strides of the 20-m sprint. Resistance training resulted in significant increases in maximum strength (parallel back squat: 19%) and explosive strength (6–10%). However, both groups increased 0–10 m sprint times (experimental group = 6%; control group = 3%) while 10–20 m times were reduced (experimental group = 7%; control group = 4%), highlighting the mechanical differences between the distinct sprint phases. The change during the 0–10 m interval was accompanied by a reduction in stride frequency during the first three strides. Strength coaches should be aware that the potential benefits of increased muscular strength during short sprints are likely to be affected by mechanical specificity and that improvements in sprinting performance may not occur immediately after a period of resistance training.     

Is passive drag dependent on the interaction of kayak design and paddler weight in flat-water kayaking?

Abstract

Drag is one of the major factors that influences kayaking performance. To focus on the drag of the kayak’s hull shape and the paddlers’ weight per se, the passive drag (D_p) was measured on a flat-water sprint course for one paddler with added weights. D_p was measured by an electromechanical towing device using a load cell, at incremental and constant velocities from 2.78 to 5.56 m/s. Three kayaks of different sizes and shapes (Nelo® K1 Quattro-M, ML, and L) were used and the paddlers’ body weight was adjusted with weights so the total paddler weight in the kayak was 65, 75, and 85 kg. The mean D_p increased by the power function of D = kvⁿ (mean R² = .990; SD .006). The D_p went from 21.37?±?1.29 N at 2.78 m/s to 89.32?±?6.43 N at 5.56 m/s. For the two lighter weighted kayaks (65 and 75 kg), the lowest D_p was observed with different kayak sizes (M, ML, or L) depending on the target velocity. The manufacturers suggest that paddlers should select a kayak size according to their body weight to minimise drag; however, the results of this study suggest that target velocities, and thus competition distance should also be factored into kayak selection.     

Executive function and language in deaf children

The relationship between language and executive function (EF) and their development in children have been the focus of recent debate and are of theoretical and clinical importance. Exploration of these functions in children with a peripheral hearing loss has the potential to be informative from both perspectives. This study compared the EF and language skills of 8- to 12-year-old children with cochlear implants (n = 22) and nonimplanted deaf children (n = 25) with those of age-matched hearing controls (n = 22). Implanted and nonimplanted deaf children performed below the level of hearing children on tests assessing oral receptive language, as well as on a number of EF tests, but no significant differences emerged between the implanted and nonimplanted deaf groups. Language ability was significantly positively associated with EF in both hearing and deaf children. Possible interpretations of these findings are suggested and the theoretical and clinical implications considered.     

‘The power to squash people’: understanding girls’ relational aggression

While researchers and concerned adults alike draw attention to relational aggression among girls, how this aggression is associated with girls’ agency remains a matter of debate. In this paper we explore relational aggression among girls designated by their peers as ‘popular’ in order to understand how social power constructs girls’ agency as aggression. We locate this power, hence girls’ agency, in contradictory messages about girlhood that, although ever‐present ‘in girls heads,’ are typically absent in adult panic about girls’ aggression. Within peer culture, power comes from the ability to invoke the unspoken ‘rules’ that police the boundaries of acceptable femininity. We thus challenge the notion advanced by Pipher and others that girls’ empowerment entails (re)gaining an ‘authentic voice.’ In contrast, we suggest that such projects must be informed by an interrogation of how girls are positioned as speaking subjects.     

Predicting acceptance of diversity in pre-kindergarten classrooms

This study examined classroom-level contributors to an acceptance of diversity in publicly supported pre-kindergarten classrooms across 11 states. Classroom composition, process quality, and teacher characteristics were examined as predictors of diversity-promoting practices as measured by the ECERS-R, acceptance of diversity construct. Findings reveal that emotional climate, bilingual classrooms, family poverty levels within classrooms, and Latino teacher ethnicity are predictive of diversity-promoting classrooms; while classroom-level ethnic sameness to teacher prohibits diversity-promoting practices in pre-kindergarten classrooms.     

Change in Parenting Democracy during the Transition to Adolescence: The Roles of Young Adolescents' Noncompliance and Mothers' Perceived Influence

OBJECTIVE: This study assessed the direct relation between young adolescents' regulated noncompliance and mothers' democratic childrearing practices as well as the potential mediating role of mothers' perceived influence during the transition to adolescence. DESIGN: Three years of self-reported adolescent noncompliance, perceived influence, and parenting democracy were gathered from 166 mothers and their firstborn children (55% female), ages 9 - 11 years at time 1. RESULTS: Longitudinal path analysis indicated a total effect between adolescents' regulated noncompliance and higher maternal democracy. In addition, the total effect was mediated by mothers' perceived influence, such that adolescents' regulated noncompliance at time 1 was associated with greater perceptions of influence at time 2, which, in turn, was associated with greater maternal democracy at time 3. CONCLUSIONS: Mothers with young adolescents who resist in a relatively mature, regulated manner tend to have more positive perceptions of their influence on their emerging adolescents' behavior. In turn, mothers expecting to maintain their influence despite normative adolescent resistance are more likely to use democratic parenting strategies, granting their adolescents more input in decisions.     

Using Food Science Demonstrations to Engage Students of All Ages in Science,Technology, Engineering,and Mathematics (STEM)

Abstract: The overarching goal of the Science, Technology, Engineering, and Mathematics (STEM) Education Initiative is to foster effective STEM teaching and learning throughout the educational system at the local, state, and national levels, thereby producing science literate citizens and a capable STEM workforce. To contribute to achieving this goal, we have assembled six food science demonstrations for use at all educational levels and have presented these lessons to students at the elementary through higher education levels. The focus of this article is to share these food science demonstrations and our experiences using them so that others can use them for engaging students in STEM disciplines, through food science, at any educational level. Featured demonstrations include: (1) liquid nitrogen ice cream: a matter of changing phases, (2) seeing our senses work together, (3) whipping up the cream, (4) milk versus dark: what is the difference?, (5) counting calories by burning them, and (6) culinary spherification: the wonders of cross‐linking. Overall, our experience with using these demonstrations has been very positive. Students appear engaged in the learning process and love to consume the demonstration end products. Downloadable handouts containing demonstration details for each demonstration are available as supporting information.     

Bioinformatics Education in High School: Implications for Promoting Science,Technology, Engineering,and Mathematics Careers

We investigated the effects of our Bio-ITEST teacher professional development model and bioinformatics curricula on cognitive traits (awareness, engagement, self-efficacy, and relevance) in high school teachers and students that are known to accompany a developing interest in science, technology, engineering, and mathematics (STEM) careers. The program included best practices in adult education and diverse resources to empower teachers to integrate STEM career information into their classrooms. The introductory unit, Using Bioinformatics: Genetic Testing, uses bioinformatics to teach basic concepts in genetics and molecular biology, and the advanced unit, Using Bioinformatics: Genetic Research, utilizes bioinformatics to study evolution and support student research with DNA barcoding. Pre–post surveys demonstrated significant growth (n = 24) among teachers in their preparation to teach the curricula and infuse career awareness into their classes, and these gains were sustained through the end of the academic year. Introductory unit students (n = 289) showed significant gains in awareness, relevance, and self-efficacy. While these students did not show significant gains in engagement, advanced unit students (n = 41) showed gains in all four cognitive areas. Lessons learned during Bio-ITEST are explored in the context of recommendations for other programs that wish to increase student interest in STEM careers.     

“If you hit me again,I'll hit you back:” Conflict management strategies of individuals experiencing aggression during conflicts

In interpersonal relationships characterized by aggression, the negotiation of conflict is especially significant. The present study examined the conflict management strategies used by 31 individuals who had experienced verbal and/or physical aggression during conflicts with their partners. Sillars’ (1986) conflict tactics coding system was used as a framework to analyze 960 pages of transcribed data. The results of this deductive content analysis indicated that the participants reported using primarily Distributive conflict strategies. Analytic induction was also used to interpret nonverbal forms of conflict management, revealing three common tactics: crying, nonverbal avoidance, and aggression. Implications for using these conflict strategies in interpersonal relationships characterized by aggression are discussed.