The relationship between shoulder alignment and elbow joint angle in cricket fast-medium bowlers

The aim of this study was to examine the relationship between shoulder alignment and elbow angle during the delivery action of fast-medium bowlers. The elbow and upper trunk alignment were recorded for 13 high-performance bowlers (mean age 20 years) using a 12-camera Vicon motion analysis system operating at 250 Hz. The three highest velocity trials for "good" and "short" length deliveries were analysed. Results showed that bowlers with a more front-on shoulder alignment at back-foot impact and when the upper arm was horizontal to the ground experienced a significantly greater elbow flexion--extension range when compared with those who had a more side-on orientation at the same point in the delivery action. Bowlers with greater shoulder counter-rotation also recorded higher elbow flexion and subsequently extension during the period from upper arm horizontal to ball release. Shoulder alignment and elbow angles were similar for "short" and "good" length deliveries. It was concluded that bowlers with a more front-on shoulder orientation at back-foot impact demonstrated a higher elbow extension from upper arm horizontal to ball release and are therefore more likely to infringe International Cricket Council elbow tolerance levels, compared with those who adopt a more side-on shoulder orientation at back-foot impact.     

Mystery to mastery: Shifting paradigms in gifted education

We provide here a brief historical analysis of a movement in progress from a belief‐based “mystery” model to an evidence‐based “mastery” model of giftedness and talent development. We have observed that educators concerned about exceptionally capable learners are moving from a categorical notion of “the typical gifted child” with somewhat mysteriously defined attributes and learning needs, toward the perspective that some children have exceptionally advanced learning needs that require more flexibly responsive educational attention. We discuss factors that differentiate the two models, and observe some benefits of the shifting paradigm, arguing that by conceptualizing gifted education as providing a dynamically responsive educational match for students who otherwise experience a mismatch with the curriculum normally provided, the mastery model is socially, educationally, and politically more defensible. We discuss some practical implications of this shift in perspective.     

Letting Go of Perfect: Overcoming Perfectionism in Kids. Adelson,J. L., & Wilson,H. E. (2009)

Given the severe paucity of gifted programs in this nation, the educational and legal rights of gifted students are not being adequately served. This article briefly examines developments at the federal level that impact upon both the legal and educational rights of gifted students. It also reviews educational data supporting the need to establish special programs, and concludes by suggesting implications and recommendations for informed practice.     

The marketing audit: a new perspective on library services and products

A marketing audit enables a library to look at audiences, services, and products with a structured approach. The audit can be used to assess operations and to provide a framework for ongoing decision making, evaluation, and long-range planning. An approach to the audit process is presented and its application is demonstrated in a case study featuring the American Hospital Association Resource Center.     

Changing the environment to promote health-enhancing physical activity

Supportive environments have been used to change and influence health behaviours like smoking. While psychological and ecological theories and models demonstrate the possible influences of the environment on health-enhancing physical activity (HEPA), little is known about the effectiveness of the environmental interventions. This paper presents the results of a systematic review of studies that used environmental interventions to increase health-enhancing physical activity. Two groups of studies were found, studies that changed the physical environment by creating new HEPA facilities, policies and supporting mechanisms, and studies that used the elements of the environment as an active or sedentary 'point of choice', via educational materials to promote stair use. Environmental change studies showed a small increase on HEPA behaviour, but the relative impact of environment changes was not evaluated. A number of before and after studies have observed a weak effect of a simple environmental change to stimulate stair climbing while travelling or shopping. Current national policy has embraced the environment as an option for promoting health-enhancing physical activity, especially active travel, in spite of the lack of effectiveness data. It is recommended that existing or planned public health environment and HEPA initiatives should use appropriate evaluation methods to assess their efficacy and effectiveness. Further developmental research into the nature of the relationship of the environment to particular HEPA behaviours is strongly recommended before developing new environmental interventions.