The influence of Cardan rotation sequence on angular orientation data for the lower limb in the soccer kick

Abstract

The influence of the Cardan rotation sequence on the orientation angles for joints is well known but has not been explored for dynamic sports movements. The purpose of this study is to establish the influence of Cardan rotation sequence on the orientation angles of the ankle, knee, and hip of the support leg and pelvis during dynamic sports movements, typified by a maximal instep kick in soccer. We found that: (a) the X (flexion/extension) axis rotations provide data that are robust for any sequence used other than the YXZ sequence, although the Y (abduction/adduction) and Z (internal/external) axes rotations are variable in both shape and offset magnitude; (b) the preferred rotation sequence is either XYZ or XZY for dynamic sports movements, although for the soccer kick the XYZ rotation sequence has been widely used and so this is recommended as a standard; and (c) most uncertainties exist in the Y and Z axes and are most apparent at the beginning of the movement. Where uncertainty exists in identifying Y and Z axes orientations, the integrated angular velocity may be considered as an alternative to determine the relative changes in segment orientation.     

Instructional Climates in Preschool Children Who Are At-Risk. Part II

In Part II of this study, we examined the effect of two 9-week instructional climates (low-autonomy [LA] and mastery motivational climate [MMC]) on perceived physical competence (PPC) in preschoolers (N = 117). Participants were randomly assigned to an LA, MMC, or comparison group. PPC was assessed by a pretest, posttest, and retention test with the Pictorial Scale of Perceived Competence and Social Acceptance. A significant Treatment × Time interaction (p < .001) was present, supporting that MMC participants reported significantly higher PPC scores over time, while no positive changes were present in LA and comparison participants. The results show that an MMC leads to psychological benefits related to achievement motivation. These findings should encourage early childhood educators to consider the effect of instructional climates on children's self-perception.     

The FTSE-British Olympic Association Initiative: A resource dependence perspective

The Financial Times Stock Exchange (FTSE)-British Olympic Association (BOA) Initiative, a partnership scheme initiated in 2007 between a number of FTSE 100 companies and Olympic National Governing Bodies (NGBs) in the UK, seeks to improve the effectiveness of the Olympic NGBs delivery and subsequent performance through the provision of support in-kind from the corporate partner. The paper uses resource dependency theory to analyse the partnerships within the Initiative, focusing primarily on the operation and benefits of those partnerships from the perspective of the Olympic NGBs. Despite being the less powerful party in the partnership, the NGBs are able to use the partnerships to acquire critical resources. While the benefits received by the companies are softer and more social in nature, nevertheless they demonstrate mutual dependency between the partners. This knowledge provides an incentive for NGBs to engage in co-optation and constraint activities as a way to strengthen the dependency relationships and protect their position.     

The development, validation, and applicability of The Personnel Evaluation Standards

Michigan State UniversityAir Force Human Resources Laboratory     

Investigating the impact of NAPLAN on student,parent and teacher emotional distress in independent schools

Concerns have been raised about the impact Australia’s national standardised testing, the National Assessment Program-Literacy and Numeracy (NAPLAN), has upon the well-being of students, parents and teachers. To date, research evidence is unclear as to the level and extent of emotional distress experienced by stakeholders during testing. Despite an unclear evidence base, the prevailing view is that NAPLAN has a general negative impact upon stakeholder well-being. In a pilot study that surveyed all stakeholder groups across 11 independent schools in Western Australia, we found evidence of a minimal impact from the testing. We also found evidence for a small positive association between student and parent distress during testing, and a moderate positive association between parent and teacher distress during testing and their estimations regarding how NAPLAN impacts other people. Our results are not consistent with the prevailing view that NAPLAN has a broad negative impact on well-being, and highlights the need for further research to inform debates about the usefulness and impact of NAPLAN testing.     

Gaze‐Contingent Display Changes as New Window on Analytical and Holistic Face Perception in Children With Autism Spectrum Disorder

The strength of holistic face perception in children with autism spectrum disorder (ASD) was evaluated by applying the gaze‐contingent mask and window technique to a face matching and discrimination task in 6‐ to 14‐year‐old children with (n = 36) and without ASD (n = 47), and by examining fixation patterns. Behavioral results suggested a slower and less efficient face processing in the ASD sample compared with the matched control group. Comparing the moving mask and window conditions revealed a reduced holistic face processing bias in the younger age group but not in the older sample. Preferential viewing patterns revealed both similarities and differences between both participant groups.     

Implementing information technology at the Border Technikon in South Africa

The mission of Border Technikon in South Africa is to provide the best vocational and career education to students of all racial and cultural backgrounds in the East London area. The staff believes that an important component of this mission includes giving students marketable skills for the information age. Therefore, in 1996, the Technikon undertook an extensive program to implement new information technologies that would help fulfill the institution's mission. Implementing information technology at academic institutions in developing countries must address a special set of problems, some of which are technology gaps, educational deficits, and lack of adequate facilities. This paper describes some of the more unique problems the Technikon encountered, and a few solutions. During 1996, she served as a Senior Librarian at Border Technikon, East London, South Africa, under the Educators for Africa Program of the International Foundation of Education and Self-Help.     

The ‘Problem’ of the Female Pupil Teacher: constructions,conflict and control 1860‐1910

This paper highlights just one aspect of the highly gendered nature of nineteenth century pupil teaching and focuses on how the female pupil teacher was constructed as a ‘problem’. The paper consists of two broad sections and draws extensively upon the experience of female pupil teachers who attended pupil teacher centres during the school board period. First, to set the scene and contextualise the ‘problem’, a brief account of the feminisation of teaching and what this meant for the female pupil teacher and pupil teaching in general is explored, with particular reference to the complexities of female pupil teachers’ working life and the issue of mixed centre organisation. Secondly, there follows an analysis of how attempts were made to solve or contain the perceived ‘problem’ of the female pupil teacher through the simultaneous exercise of: moral control; protection and concern with physical and mental well‐being; moulding through the medium of ‘healthful recreation’.     

Transition services for students with intellectual disabilities: School psychologists’ perceptions

For individuals with intellectual disabilities (ID), transition services increase access to postschool opportunities. School psychologists should contribute to transition services but have reportedly limited involvement in this area. This study distributed a national survey (N = 176) assessing school psychologists’ current knowledge, attitudes, and behaviors regarding transition services for students with ID. Results indicated that attitudes toward and knowledge of the ID population were significant predictors of transition task performance, and knowledge was a significant predictor of transition‐related attitudes and behaviors. The results provided preliminary evidence that increasing school psychologists’ specific knowledge of transition services and encouraging positive attitudes toward the transition needs of students with ID may increase school psychologists’ performance in transition practice. Specific recommendations are provided.