Effects of agonist–antagonist complex resistance training on upper body strength and power development

Abstract

The objective of this study was to examine the chronic effects on strength and power of performing complex versus traditional set training over eight weeks. Fifteen trained males were assessed for throw height, peak velocity, and peak power in the bench press throw and one-repetition maximum (1-RM) in the bench press and bench pull exercises, before and after the eight-week programme. The traditional set group performed the pulling before the pushing exercise sets, whereas the complex set group alternated pulling and pushing sets. The complex set training sessions were completed in approximately half the time. Electromyographic (EMG) activity was monitored during both test sessions in an attempt to determine if it was affected as a result of the training programme. Although there were no differences in the dependent variables between the two conditions, bench pull and bench press 1-RM increased significantly under the complex set condition and peak power increased significantly under the traditional set condition. Effect size statistics suggested that the complex set was more time-efficient than the traditional set condition with respect to development of 1-RM bench pull and bench press, peak velocity and peak power. The EMG activity was not affected. Complex set training would appear to be an effective method of exercise with respect to efficiency and strength development.     

Literacy skills of adults with intellectual disabilities in two community‐based day programs

There is limited information available related to the literacy skills of adults with intellectual disabilities. In this project, information was collected about the contexts, current practices, and clients' abilities in literacy in two community‐based disability service programs. Individual assessments were undertaken to collect details of the current literacy levels of adults with intellectual disabilities in day program settings. These assessments focused on receptive language, reading at the letter, word and sentence level, writing vocabulary and connected text, and literacy preferences. Audits were also conducted related to the provision of opportunities for clients accessing these services to engage with literacy including environmental print. Structured day program activities were observed to gather information about current literacy teaching and learning. Implications of the research findings and suggestions for provision of literacy education in these settings are discussed.     

OCCUPATIONAL/CAREER INDECISION FOR ECONOMICALLY DISADVANTAGED HIGH SCHOOL STUDENTS OF HIGH INTELLECTUAL ABILITY: A MIXED‐METHODS COGNITIVE PROCESS MODEL

A mixed‐methods design was employed to identify the cognitive processes that lead to occupational/career indecision for economically disadvantaged adolescents of high intellectual ability. In the first phase, interview data collected from 26 economically disadvantaged intellectually gifted Australian adolescents were analyzed using grounded theory to develop two alternative models of cognitive processes that lead to occupational/career indecision. In the second phase, these models were quantitatively tested and refined using structural equation modeling of survey data collected from 917 economically disadvantaged intellectually gifted Australian adolescents. The finally accepted model, identified using a competing models strategy, suggested that valuing the thoughts of family on general matters is positively predictive of a desire to live up to one's potential and the experience of amotivation about the occupational decision. In turn, occupational amotivation appears to be positively associated with occupational indecision, but negatively associated with multipotentiality and a desire to fulfill one's potential.     

Are validity coefficients understated due to correctable defects in the GPA?

The predictive validity of preadmissions measures such as standardized test scores and high school grades may be understated because of correctable defects in both the freshman year and cumulative grade point average (GPA). Measurement error in the criterion artificially depresses the size of observed validity coefficients. A study was conducted using item response theory (IRT) to develop a more reliable measure of performance, called an IRT-based GPA, and tested in a predictive validity study using data from Stanford University. Results indicate increased predictability when the IRT-based GPA is compared with the usual GPA.This article is based, in part, on the doctoral dissertation of the author, which was completed at the School of Education at Stanford University.     

Examining the Efficacy of Targeted Component Interventions on Language and Literacy for Third and Fourth Graders Who are at Risk of Comprehension Difficulties

Testing a component model of reading comprehension in a randomized controlled trial, we evaluated the efficacy of 4 interventions that were designed to target components of language and metacognition that predict children’s reading comprehension: vocabulary, listening comprehension, comprehension of literate language, academic knowledge, and comprehension monitoring. Third- and 4th-graders with language skills falling below age expectations participated (N = 645). Overall, the component interventions were only somewhat effective in improving the targeted skills, compared to a business-as-usual control (g ranged from ?.14 to .33), and no main effects were significant after correcting for multiple comparisons. Effects did not generalize to other language skills or to students’ reading comprehension. Moreover, there were Child Characteristic × Treatment interaction effects. For example, the intervention designed to build sensorimotor mental representations was more effective for children with weaker vocabulary skills. Implications for component models of reading and interventions for children at risk of reading comprehension difficulties are discussed.     

Variations on variability: effects of display composition on same–different discrimination in pigeons

Discriminating same from different multiitem arrays can be represented as a discrimination between arrays involving low variability and arrays involving high variability. In the present investigation, we first trained pigeons with the extreme values along the variability continuum (arrays containing 16 identical items vs. 16 nonidentical items), and we later tested the birds with arrays involving intermediate levels of variability; we created these testing arrays either by manipulating the combination of same and different items (mixture testing) or by changing the number of items in the same and different arrays (number testing). According to an entropy account (Young & Wasserman, Journal of Experimental Psychology: Animal Behavior Processes 23:157?C170, 1997), the particular means of changing variability should have no effect on same?Cdifferent discrimination performance: Equivalent variability should yield equivalent performance. In this critical test of an entropy account, we found that entropy could explain a large portion of our data, but not the entire collection of results.     

Ironies and Limitations of Educational Leadership for Social Justice: A Call to Social Justice Educators

In this article that reviews this special issue, we identify 5 ironies and limitations of educational leadership for social justice: (a) the meaning of inclusive practice, (b) the intersection of identity and difference, (c) the emphasis given to student achievement, (d) the lack of policy and practice coherence, and (e) the separation of superheroes from critical collaborative leadership. Although we discuss each issue separately, these conceptions are interrelated and intersecting. We conclude with a call to educators for social justice to change their work in several fundamental ways.