Partnering through training and practice to achieve performance improvement

This article presents a partnership effort among managers, trainers, and employees to spring to life performance improvement using the performance templates (P‐T) approach. P‐T represents a process model as well as a method of training leading to performance improvement. Not only does it add to our repertoire of training and performance management methods, it assists trainers and managers to promote change, achieve flexibility in performance, and enhance the fluency of skill application with regard to critical performance events.     

Dichotomy in thinking,dilemma in actions: Researcher and teacher perspectives on a chemistry teaching practice

This article is a case study of the thinking and actions of Mr. Corrigan, an experienced high school chemistry teacher. We explored Corrigan's ideas on teaching science by conducting two types of interviews, and wrote a case summary for Corrigan to read that compared his ideas with our classroom observations. We described his practice as centering on structured classroom and laboratory time, and contrasted it with his emphasis on students' exploratory thinking in the interviews. Corrigan's reflections on the case summary revealed a set of tacit conceptions of teaching science centered on the necessity of having a highly organized classroom and laboratory to ensure students' content understanding and success on tests and in college. We felt Corrigan faced a dilemma in that he values both his control of learning activities and the students' learning through exploration. Corrigan was confident in his practice and did not see much of a dilemma, and felt he was attending to both aspects of his thinking in an adequate fashion. Corrigan's reflections on the case summary are presented as a commentary on our perspective of the relationship between his thinking and actions. Working with Corrigan revealed to us the complexity of characterizing a teacher's thinking and its relationship to actions, and the value of the insight researchers gain from discussing their conclusions with the teacher. © 1997 John Wiley & Sons, Inc. J Res Sci Teach 34: 239–254, 1997.     

Investigating sentence weighting components for automatic summarisation

The work described here initially formed part of a triangulation exercise to establish the effectiveness of the Query Term Order algorithm. It subsequently proved to be a reliable indicator for summarising English web documents. We utilised the human summaries from the Document Understanding Conference data, and generated queries automatically for testing the QTO algorithm. Six sentence weighting schemes that made use of Query Term Frequency and QTO were constructed to produce system summaries, and this paper explains the process of combining and balancing the weighting components. The summaries produced were evaluated by the ROUGE-1 metric, and the results showed that using QTO in a weighting combination resulted in the best performance. We also found that using a combination of more weighting components always produced improved performance compared to any single weighting component.     

The effect of high intensity exercise and anticipation on trunk and lower limb biomechanics during a crossover cutting manoeuvre

We investigated the effects of high intensity, intermittent exercise (HIIP) and anticipation on trunk, pelvic and lower limb biomechanics during a crossover cutting manoeuvre. Twenty-eight male, varsity athletes performed crossover cutting manoeuvres in anticipated and unanticipated conditions pre- and post-HIIP. Kinematic and kinetic variables were captured using a motion analysis system. Statistical parametric mapping (repeated-measures ANOVA) was used to identify differences in biomechanical patterns. Results demonstrated that both unanticipation and fatigue (HIIP) altered the biomechanics of the crossover cutting manoeuvre, whereas no interactions effects were observed. Unanticipation resulted in less trunk and pelvic side flexion in the direction of cut (d = 0.70 – 0.79). This led to increased hip abductor and external rotator moments and increased knee extensor and valgus moments with small effects (d = 0.24–0.42), potentially increasing ACL strain. The HIIP resulted in trivial to small effects only with a decrease in internal knee rotator and extensor moment and decreased knee power absorption (d = 0.35), reducing potential ACL strain. The effect of trunk and hip control exercises in unanticipated conditions on the crossover cutting manoeuvre should be investigated with a view to refining ACL injury prevention programmes.     

Immune nutrition and exercise: Narrative review and practical recommendations

Abstract

Evidence suggests that periods of heavy intense training can result in impaired immune cell function, and whether this leaves elite athletes at greater risk of infections and upper respiratory symptoms (URS) is still debated. There is some evidence that episodes of URS do cluster around important periods of competition and intense periods of training. Since reducing URS, primarily from an infectious origin, may have implications for performance, a large amount of research has focused on nutritional strategies to improve immune function at rest and in response to exercise. Although there is some convincing evidence that meeting requirements of high intakes in carbohydrate and protein and avoiding deficiencies in nutrients such as vitamin D and antioxidants is integral for optimal immune health, well-powered randomised controlled trials reporting improvements in URS beyond such intakes are lacking. Consequently, there is a need to first understand whether the nutritional practices adopted by elite athletes increases their risk of URS. Second, promising evidence in support of efficacy and mechanisms of immune-enhancing nutritional supplements (probiotics, bovine colostrum) on URS needs to be followed up with more randomised controlled trials in elite athletes with sufficient participant numbers and rigorous procedures with clinically relevant outcome measures of immunity.     

Foot strike patterns of recreational and sub-elite runners in a long-distance road race

Although the biomechanical properties of the various types of running foot strike (rearfoot, midfoot, and forefoot) have been studied extensively in the laboratory, only a few studies have attempted to quantify the frequency of running foot strike variants among runners in competitive road races. We classified the left and right foot strike patterns of 936 distance runners, most of whom would be considered of recreational or sub-elite ability, at the 10 km point of a half-marathon/marathon road race. We classified 88.9% of runners at the 10 km point as rearfoot strikers, 3.4% as midfoot strikers, 1.8% as forefoot strikers, and 5.9% of runners exhibited discrete foot strike asymmetry. Rearfoot striking was more common among our sample of mostly recreational distance runners than has been previously reported for samples of faster runners. We also compared foot strike patterns of 286 individual marathon runners between the 10 km and 32 km race locations and observed increased frequency of rearfoot striking at 32 km. A large percentage of runners switched from midfoot and forefoot foot strikes at 10 km to rearfoot strikes at 32 km. The frequency of discrete foot strike asymmetry declined from the 10 km to the 32 km location. Among marathon runners, we found no significant relationship between foot strike patterns and race times.     

Producing Whiteness: An exploration of working-class white men in two contexts1

In this essay we enter the terrain of 'whiteness' studies, drawing upon data gathered in two ethnographic investigations conducted in a large northeastern city in the United States. In the first study we focus on the ways in which whiteness among working-class men emerges in relation to a constructed 'other', in this case a black/Latino other who is held to have unpleasant characteristics. In the second, we problematize the idea that the white European self emerges necessarily in relation to that of a constructed 'dark other' by focusing on white working-class Irish adults who frequent an Irish community centre in the same city. We explore the ways in which the presence of particular spaces within which ethnic identities can flourish may blunt the effects of possible intergroup violence based on the production of a white identity and at the same time potentially encourage a multi-racial set of political coalitions.     

Evaluating STAR – a transformative learning framework: interdisciplinary action research in health training

Transformative learning aims to awaken students to issues of injustice, and to promote their critical analysis of assumptions, beliefs and values that lead to and sustain social inequities, so that they may become agents of social change. This paper introduces the Sensitise Take Action and Reflection (STAR) framework, which encapsulates transformative learning principles, as a tool for educators to enhance student health professionals’ capacity and preparedness to address health inequities they are likely to encounter in their future practice. Using an action research methodology within a three-cycle process, STAR was trialled and evaluated by an interdisciplinary team of health educators (n = 25) in an Australian university. Disciplines included: nursing, nutrition and dietetics, public health, occupational therapy and paramedic science. Data were gathered via individual interviews, focus group discussions and field notes, and were analysed inductively, with member-checking of emerging themes to ensure interpretive rigour. The results of this research suggest that STAR is easily understood by users, has relevance for health professional education, and holds promise for producing desired educational outcomes within and across health disciplines. Furthermore, this project could be considered a model for fostering inter-professional collaboration in health education, research and practice.