A comparison of methods to determine bilateral asymmetries in vertical leg stiffness

Whilst the measurement and quantification of vertical leg stiffness (K_vert) asymmetry is of important practical relevance to athletic performance, literature investigating bilateral asymmetry in K_vert is limited. Moreover, how the type of task used to assess K_vert may affect the expression of asymmetry has not been properly determined. Twelve healthy males performed three types of performance tasks on a dual force plate system to determine K_vert asymmetries; the tasks were (a) bilateral hopping, (b) bilateral drop jumping and (c) unilateral drop jumping. Across all the three methods, K_vert was significantly different between compliant and stiff limbs (P < 0.001) with a significant interaction effect between limb and method (P = 0.005). Differences in K_vert between compliant and stiff limbs were ?5.3% (P < 0.001), ?21.8% (P = 0.007) and ?15.1% (P < 0.001) for the bilateral hopping, bilateral drop jumping and unilateral drop jumping methods, respectively. All the three methods were able to detect significant differences between compliant and stiff limbs, and could be used as a diagnostic tool to assess K_vert asymmetry. Drop jumping tasks detected larger K_vert asymmetries than hopping, suggesting that asymmetries may be expressed to a greater extent in acyclic, maximal performance tasks.     

Distance education copyright,intellectual property,and antitrust concerns

Abstract

An empirical examination of accredited American higher education institutions was conducted to obtain baseline data regarding distance education copyright, intellectual property, and antitrust concerns. Additionally, a multiple‐case study involving ten of the top thirty accredited distance education institutions in America was conducted. Policy approaches were examined for all institutions, and differences were discussed between public and private institutions as well as between the following Carnegie Classification institutions: Research I and II, Doctorate I and II, and Master's I and II. Data indicated that, out of the schools surveyed, 22% of the institutions in these Carnegie Classification categories published copyright and intellectual property policies on their institution's Web site. In the case study, it was found that 90% of the institutions centrally controlled their distance education program administration as well as the copyright and intellectual property policies related to it.     

Addressing Physical Education Teacher Socialization Through Standards-based Reform of Physical Education Teacher Education

Research suggests that progress in the physical education profession is slowed by a cycle of nonteaching and dominance of traditional methodologies. Socialization factors operate to preserve and perpetuate the status quo of the profession, which is rooted primarily in team sport content. Teacher education programs are challenged to persuade pre-service teachers to question their initial belief structures while also preparing them for the sociopolitical realities of schools. There is not, however, a formal mechanism through which to accomplish these goals, because current accreditation standards do not include an emphasis on socialization. As a result, the purpose of this article is to stimulate further discussion by reviewing relevant research related to socialization, describe evidence-based practices for overcoming these challenges, and propose an addition to the Society of Health and Physical Educators America (2017) standards for initial physical education teacher education to specifically focus attention on socialization issues.     

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.