Tracking Club Sport Participation From Childhood to Early Adulthood

This study examined the strength of tracking sport participation from childhood to early adulthood among the Dunedin Multidisciplinary Health and Development Study cohort. Participation in sport, dance, or gymnastics as part of a club or group (outside of school) was assessed at ages 7, 9, 15, 18, and 21 years. In addition to the traditionally used correlation coefficients, summary statistics (intraclass correlations; ICC) from random effect models and stability coefficients from generalized estimating equations (GEE) were calculated using all the longitudinal data and controlling for the influence of covariates on tracking strength. Correlation coefficients revealed statistically significant tracking of club sport participation (7–21 years) at low levels (r = .07–0.28). The ICC summary statistic (0.23) was consistent with this, while the GEE suggested moderate tracking (0.59). The results of this study suggest that encouraging sport participation during childhood and adolescence may result in a modest increase in the likelihood of participation later in life. However, the substantial movement into and out of sport participation observed here and in other studies cautions against relying solely on sport promotion among youth as a strategy to promote lifelong participation.     

Skiing‐Skating

An articulated boot design is commonly used in skiing and skating sports because it allows sagittal plane ankle mobility while still providing critical frontal plane stability. Although articulated boots have been in use for several decades, current manufacturers of these boots differ in their articulation placement. In this study we determined an optimal position of the ankle articulation axis. We also calculated the amount of anterior skin movement that a boot tongue must account for during a full range of ankle motion. Three‐dimensional kinematic data were collected and analyzed from 40 participants moving their right foot through a full range of sagittal plane motion. The calculated horizontal position of the articulation axis was found to be highly predictable from foot length (r = 0.87, standard error of estimate = 3.44 mm), while its vertical component displayed less predictability (r = 0.49, standard error of estimate = 7.46 mm). The expansion required by the boot tongue had a moderate association with foot length and low variability (r = 0.58, standard error of estimate = 0.07 mm). An accurate axis placement will minimize relative motion between the boot cuff and the ankle, reducing friction and motion resistance. An expandable tongue will accommodate full plantar flexion and reduce pressure on the anterior ankle during dorsiflexion, eliminating common pressure‐related injuries.     

Using Kinesthetic Activities to Teach Ptolemaic and Copernican Retrograde Motion

This paper describes a method for teaching planetary retrograde motion, and the Ptolemaic and Copernican accounts of retrograde motion, by means of a series kinesthetic learning activities (KLAs). In the KLAs described, the students literally walk through the motions of the planets in both systems. A retrospective statistical analysis shows that students who participated in these activities performed better on examination questions pertaining to retrograde motion than students who did not. Potential explanations for this result, including the breaking of classroom routine, the effect of body movement on conceptual memory, and egocentric spatial proprioception, are considered.     

Technical Education and the Humanities

“And the shoemaker was not allowed by us to be a husbandman or a weaver, or a builder–in order that we might have our shoes well made.”

Plato, Republic, Book II.     

Evolution and Diffusion of the Michigan State University Tradition of Organizational Communication Network Research

This article documents the 30‐year history of communication network research at Michigan State University (M.S.U.), providing a case study of the evolution and diffusion of an academic innovation. Three past and continuing issues for network scholars are identified: a lack of professional reward for developing user‐friendly computer programs, unresolved methodological problems, and a need for better theoretical and conceptual frameworks. The narrative also illustrates the difficulty communication as a discipline has in impacting broader intellectual traditions. The story begins with the first doctoral dissertation (Schwartz, 1968 Richards, W. D. and Barnett, G., eds. 1993. Progress in communication sciences: Advances in communication network analysis, Norwood, NJ: Ablex.  [Google Scholar]) and the first network analysis software program in 1970 (Richards’ Negopy), continuing to the last dissertation (Susskind, 1996 Susskind, A. M. 1996. The impact of an organizational downsizing effort on survivors’ communication network relationships and attitudes, East Lansing: Department of Communication, Michigan State University. Unpublished doctoral dissertation [Google Scholar]), and ending in 1998 when J. David Johnson left the M.S.U. faculty. Other major players in the M.S.U. network tradition included David K. Berlo, Eugene Jacobson, Everett M. Rogers, Vincent Farace, Peter Monge, and Erwin Bettinghaus. Ironically, Schwartz and Susskind met in 1998 while Schwartz was preparing to retire from Cornell University and Susskind was starting as an Assistant Professor in a different department, thus providing closure to the M.S.U. network.     

Understanding the Realities of School Life: Recommendations for the Preparation of Physical Education Teachers

While quality physical education teacher education requires recruits to be trained in the knowledge, skills, and dispositions necessary for effective teaching, research stemming from socialization theory and role theory indicates that this may not be adequate. Pre-service teachers also need to be made aware of organizational challenges they will face when transitioning into their first teaching position. These challenges stem from the ways in which recruits are socialized into physical education, and are related to the complex, sociopolitical structure of schooling. The purpose of this article is to provide a review of the organizational challenges faced by beginning physical education teachers and to present recommendations for how teacher training programs can better prepare pre-service teachers to meet these challenges. The discussion includes both general and specific strategies that can be implemented to provide pre-service teachers with the knowledge and skills necessary to enhance their ability to navigate life in the sociopolitical contexts of schools. Preparing students for the realities of school life should correspond with a decrease in reality shock and the washout effect.     

Historical mathematics in the French eighteenth century

At least since the seventeenth century, the strange combination of epistemological certainty and ontological power that characterizes mathematics has made it a major focus of philosophical, social, and cultural negotiation. In the eighteenth century, all of these factors were at play as mathematical thinkers struggled to assimilate and extend the analysis they had inherited from the seventeenth century. A combination of educational convictions and historical assumptions supported a humanistic mathematics essentially defined by its flexibility and breadth. This mathematics was an expression of l'esprit humain, which was unfolding in a progressive historical narrative. The French Revolution dramatically altered the historical and educational landscapes that had supported this eighteenth-century approach, and within thirty years Augustin Louis Cauchy had radically reconceptualized and restructured mathematics to be rigorous rather than narrative.     

Counsellor supervision In Zimbabwe: A new direction

This paper examines theneed for a new paradigm of counsellor supervision in Zimbabwe andprovides components for a new paradigm. The article identifiesissues that need to be considered in order to develop counsellorsupervision practice in an appropriate cultural and social contextfor the country. The issues that are examined are: counsellortraining in Zimbabwe; sociohistoric and present racial themes inZimbabwe; the impact of Eurocentric counselling theory, research andpractice in Zimbabwe; and the basic tenets of indigenous culture inZimbabwe that impact on the counsellor supervision process.