Effects of stance width on performance and postural stability in national-standard pistol shooters

Abstract

The aim of the present study was to determine whether changing stance width would result in a corresponding change in postural and/or pistol stability. Twelve national-standard male air pistol shooters performed 10 shots each at five stance widths (30 cm, 45 cm, 60 cm, 75 cm, and 90 cm). Postural stability was determined by measuring centre-of-pressure changes with a dual force-platform system. Shooting mechanics measures were determined by a NOPTEL ST-2000 optoelectronic training system. Medial-lateral centre-of-pressure excursion (F _4,44 = 7.17, P < 0.001, effect size = 0.99) and speed (F _4,44 = 77.03, P < 0.001, effect size = 3.88) were reduced as stance width decreased. Centre of gravity fine (the percentage of time held within an area the size of the ten-ring) improved during narrower stance widths (F _4,32 = 12.49, P < 0.001, effect size = 0.71). Our findings suggest that stance width affects postural and pistol stability in national-standard air pistol athletes. Moreover, the current method of suggesting a wider stance to improve shooting performance should be reconsidered and perhaps air-pistol shooters should use a 30-cm stance width to improve postural stability and shooting performance.     

Differences in trunk and upper extremity kinematics and segmental velocities during the offside forehand polo swing between male and female athletes

ABSTRACT

Although polo is a well-known equestrian sport, it is fundamentally misunderstood. The purpose of this study was to examine trunk and upper extremity kinematics and segmental velocities during the offside forehand polo swing between male and female athletes. Ten female and 17 male professional polo athletes volunteered. An electromagnetic tracking system collected kinematic data at 100 Hz while participants performed three offside forehand polo swings from a stationary wooden horse. One-way ANOVAs revealed statistically significant differences (p<0.05) in all kinematic variables and segmental velocities. Specifically, males exhibited a greater mean difference (MD=23°) of trunk flexion at take away (TA) and top of backswing (TOB)(MD=29°) trunk lateral flexion at ball contact (BC)(MD=23°), trunk rotation at TA(MD=97°) and TOB(MD=118°), shoulder abduction at TOB(MD=64°), and shoulder elevation at TOB(MD=13°) and BC(MD=40°). Females displayed greater trunk rotation at BC(MD=91°), shoulder elevation at TA(MD=19°), and elbow flexion at TA(MD=90°). Additionally, females generated greater segmental velocities early in the swing, while the males generated velocity later. The movement patterns observed amongst the males suggest energy is being transferred more efficiently along the kinetic chain, thus more efficient swing mechanics, but further investigation into the role of the trunk and lumbopelvic-hip complex in reference to the polo swing is warranted.     

Gender stereotypes among women engineering and technology students in the UK: lessons from career choice narratives

In the UK, women remain under-represented in engineering and technology (E&T). Research has, therefore, investigated barriers and solutions to women's recruitment, retention and progression. Recruitment into the sector may be supported by exploring the career decisions of women and men who have chosen to study E&T. Triangulating quantitative and qualitative data from E&T students at a UK university, this paper examines the gendered nature of career choice narratives. It finds that women often maintain contradictory views; upholding gendered stereotypes about women's suitability for the so-called masculine work, yet also subscribing to ideals that the sector is accessible to all who wish to work in it. This is explained using an individualist framework in which women construct an autonomous sense of self, yet are also shaped by a gendered self. Women's discourse around career choice, therefore, reveals the problematic nature of gender norms for achieving gender equity in E&T.     

Developing Positive Attitudes Toward Interprofessional Collaboration Among Students in the Health Care Professions

This study examined whether attitudes toward interprofessional collaboration (Physician-Nurse, Physician-Social Worker, Nurse-Social Worker) held by medical, social work, and nursing students changed after completing an interprofessional curriculum consisting of (a) Interprofessional Education Development Session and (b) the Senior Aging and Geriatrics Educator mentoring program. The 15-item original and two modified versions of the Jefferson School of Attitudes Toward Physician-Nurse Collaboration (JSAPNC) were administered as pretest/posttest. Of the 186 participants who completed the pretest, 156 (84%) completed the posttest. Results showed that the medical students (n = 52) reported the most positive change in attitude toward all three pairs of interprofessional collaboration. Social work students (n = 55) reported the least positive attitudes toward Physician-Social Worker collaboration and nursing students (n = 49) reported the least positive attitudes toward Physician-Nurse collaboration. It is recommended to evaluate the interprofessional curriculum and other factors, such as the possible influence of the facilitator in group discussions, and that future studies include a rigorous design that monitors content of each educational session to ensure integrity across groups. Postgraduate follow-up measures could be used to enhance positive attitudes toward interprofessional collaboration.     

Socioeconomic status,mental wellbeing and transition to secondary school: Analysis of the School Health Research Network/Health Behaviour in School-aged Children survey in Wales

Young people's wellbeing is often lowest where they assume a relatively low position within their school's socioeconomic hierarchy, for example, among poorer children attending more affluent schools. Transition to secondary school is a period during which young people typically enter an environment which is more socioeconomically diverse than their primary school. Young people joining a school with a higher socioeconomic status intake relative to their primary school may assume a relatively lowered position within their school’s socioeconomic hierarchy, experiencing a detriment to their wellbeing as a consequence. This article draws on data from 45,055 pupils in Years 7 and 8, from 193 secondary schools in Wales, who completed the 2017 Student Health Research Network (SHRN) Student Health and Wellbeing (SHW) survey. Pupils reported which primary school they previously attended, and survey data on wellbeing were linked to publicly available data on the free school meal entitlement of schools attended. In cross-classified linear mixed-effects models, with primary and secondary school as levels, mental wellbeing varied significantly according to both primary and secondary school attended. A higher school-level deprivation was associated with worse mental wellbeing in both cases. Mental wellbeing was significantly predicted by the relative affluence of a child's primary and secondary school, with movement to a secondary school of higher overall socioeconomic status associated with lowered wellbeing. These findings highlight transition to secondary school as a key point in which socioeconomic inequality in wellbeing may widen, and thus as an important focal point for intervention to reduce health inequalities.     

Raiders of the lost archives

ABSTRACT

Fantastic Man (2014) and Searching for Sugar Man (2012) mobilize tropes of discovery occurring in the filmed process of collecting and curating the work and identities of two reluctant, elusive, and resistive figures. These documentaries are part of a discourse of collectability marked by the urge to discover and narrate a “quest” that has its precedents in record collecting as obsessive cultural practice and in the fetishizing of obscurity. Furthermore, they can be seen as “performances” of the artiste and repertoire (A&R) process but for a “post-rock” era in which the customary roles of A&R have largely been eclipsed by social, economic, and technological changes to the music industry: the “(re-)discovery” of Onyeabor and Rodriguez exemplifies an increasingly common fusion of, rather than oscillation between, novelty and nostalgia in the music industry, as “old” artists are “newly” discovered through practices of media archaeology aimed at unearthing artifacts of cultural and economic value from an ever bigger and denser digital archive.     

Evaluating legacies: Research,evidence and the regional impact of the Cultural Olympiad

From the bidding stage onwards, the London 2012 Olympics has been framed by an explicitly instrumental agenda, with objectives including increasing participation in sport in the UK and economic and physical regeneration in host sites, through investment in the Olympic Park and its surrounding infrastructure. The bid also signalled the ambition that London 2012 should be the first Olympics to deliver legacy through a nation-wide cultural programme in the build up to and alongside the Games [Kennell, J. & MacLeod, N. (2008, November 6–8). A memetic framework for the conceptualisation and evaluation of the Cultural Olympiad of the 2012 Olympic and Paralympic Games. Paper presented at the 2nd Bi-annual International Tourism Studies Association conference in Shanghai, China. Retrieved from http://gala.gre.ac.uk/3951/], deliberately putting in place infrastructure for each English region and nation, shortly after the bid's success was announced. The ensuing national Cultural Olympiad, part funded by Legacy Trust UK, was evaluated through a series of research exercises which aimed to document the legacy and impact of the cultural programme. Through the case study of a regional programme in the North West of England, “We Play”, this article considers how evaluation research has been used locally to develop policy stories and legacy narratives which interpret and interact with the changing landscape of arts funding and cultural policy in the UK.     

Mapping Educational Equity and Reform Policy in the Borderlands: LatCrit Spatial Analysis of Grade Retention

The purpose of our study is to investigate reform policy, specifically a proposed third grade reading retention policy within the Borderlands. Under this policy, students not performing proficiently on the third grade reading standardized exam will be automatically retained in the third grade. The research methods and approach used in this study include an equity analysis formed by combining two steps across a Borderland county in New Mexico. The first step is a regression analysis to answer if access to early childhood education and access to highly qualified teachers inform differences in third grade reading scores, and the second step uses a LatCrit informed Spatial Analysis to create an equity index, to see how equity varies across the spaces of elementary schools. This allows us to essentially map Third Grade Reading Retention Reform Policy in the Borderlands. The setting of the study is in the U.S. Southwest Borderlands, specifically Doña Ana County, which borders Texas and Mexico, in southern New Mexico. Up to a quarter of the population is under the age of 18, two thirds (66.6%) of the population is Latino, and half of the population speaks a language other than English at home. Implications from this study include, for policy makers, policy considerations that come from a non-deficit thinking perspective and focus on systemic considerations to improving educational equity. Given that the setting demographically mirrors much of the state of New Mexico, as well as demographic shifts across communities throughout the U.S., this study provides further considerations for key systemic changes to improving academic measures like reading scores.