Reliability of a combined biomechanical and surface electromyographical analysis system during dynamic barbell squat exercise

An analysis system for barbell weightlifting exercises is proposed to record reliable performance and neuromuscular responses. The system consists of surface electromyography (sEMG) synchronized with electrogoniometry and a barbell position transducer. The purpose of this study was to establish the reliability of the three components of the system. Nine males (age 28.9 ± 4.8 years, mass 85.7 ± 15.1 kg) performed squat exercise at three loads on three separate trial days. A data acquisition and software system processed maximal knee angle (flexion), mean power for the concentric phase of squat exercise, and normalized root mean square of the vastus lateralis. Inter-trial coefficients of variation for each variable were calculated as 5.3%, 7.8%, and 7.5% respectively. In addition, knee joint motion and barbell displacement were significantly related to each other (bar displacement (m) = 1.39-0.0057 × knee angle (degress), with goodness-of-fit value, r2 = 0.817), suggesting knee goniometry alone can represent the kinematics of a multi-joint squat exercise. The proven reliability of the three components of this system allows for real-time monitoring of resistance exercise using the preferred training methods of athletes, which could be valuable in the understanding of the neuromuscular response of elite strength training methods.     

Generational differences in knowledge,recognition, and perceptions of elder abuse reporting

This study investigated the extent to which age, knowledge, attitudes toward aging, and perceptions of elder abuse influence elder abuse reporting trends. Using hypothetical scenarios, facts on elder abuse, reporting barriers, ageist attitudes, and other measures, survey data were collected from university students and elderly attendees at multiple senior centers. There were no generational differences in the cumulative rating severity score across all scenarios. However, students were more likely to report the abusive behavior to authorities. Abuse knowledge, recognition and severity, ageist attitudes, and perceived barriers were significantly correlated with a higher reporting score. Although students viewed financial exploration and self-neglect as less serious, when it came to physical and sexual abuse the decision to report to the authorities was comparable for the two groups. For both age groups, the unclear and inconsistent definitions of elder abuse and lack of sufficient proof were considered the major barriers to consistent reporting protocols. Compared to students, seniors were more likely to think reporting an abusive situation would only make things worse and, as a result, favored keeping the abuse private among family members. The majority of seniors also felt others in their own age group would deny the abuse if reported.     

Shyness and Social Conflict Reduce Young Children's Social Helpfulness

This study examined social influences on 3‐year‐old children's decisions to help an experimenter gain another person's attention (N = 32). Children were slower to help the experimenter when the target had previously expressed disinterest in attending to her. Shy children were less likely to support the experimenter's attempts to communicate with the target; however, this association was not influenced by children's knowledge of the target's disinterest, and there was no relation between shyness and children's support for a separate physical goal. Therefore, young children's decisions to act helpfully incorporate consideration for others beyond a focal person with an unmet need, and they are further constrained by children's own comfort with the actions required to help.     

The impact of adverse childhood experiences on an urban pediatric population

Objective

The goal of this study was to investigate the adverse childhood experiences (ACEs) in youth in a low-income, urban community.

Study design

Data from a retrospective chart review of 701 subjects from the Bayview Child Health Center in San Francisco are presented. Medical chart documentation of ACEs as defined in previous studies were coded and each ACE criterion endorsed by a traumatic event received a score of 1 (range = 0-9). This study reports on the prevalence of various ACE categories in this population, as well as the association between ACE score and two pediatric problems: learning/behavior problems and body mass index (BMI) ≥ 85% (i.e., overweight or obese).

Results

The majority of subjects (67.2%, N = 471) had experienced 1 or more categories of adverse childhood experiences (ACE ≥ 1) and 12.0% (N = 84) had experienced 4 or more ACEs (ACE ≥ 4). Increased ACE scores correlated with increased risk of learning/behavior problems and obesity.

Conclusions

There was a significant prevalence of endorsed ACE categories in this urban population. Exposure to 4 or greater ACE categories was associated with increased risk for learning/behavior problems, as well as obesity.

Practice implications

Results from this study demonstrate the need both for screening of ACEs among youth in urban areas and for developing effective primary prevention and intervention models.     

Creating a “third space” in student teaching: Implications for the university supervisor’s status as outsider

The work of teacher education during student teaching typically takes place in two distinct “spaces”: placement sites and college/university settings. The program featured in this article is structured in ways that clearly mark out those two spaces. Yet this configuration led our university supervisors, whose work primarily took place in the field, to feel like “outsiders.” To redress this concern, a third learning space was incorporated into our student teaching seminar. We suggest that “third spaces” in combination with return-to-campus courses not only mitigates the peripherality of university supervisors, but also amplifies the influence of a teacher preparation program.     

Teaching Security Courses Experientially

Courses in security are essential in criminal justice programs, but tend to be nonexistent at many postsecondary institutions. Faculty often struggle to legitimize these types of courses, and find that students are reluctant to take them. However, prior research indicates that student career choices and perceptions of the security field change after taking a course in security. The current work summarizes the need to teach security‐related topics to criminal justice undergraduates and details two personal experiences on how to successfully do so. It also advises instructors on how to utilize university campuses internally and practitioners externally toward this end.     

Questions of Choice

The fact that education is, and must be, a process of enculturation for those being educated gives us some, but by no means enough, guidance as to what we would expect to see going on in our schools. For given that our educational institutions are part of our culture and, given that anything that is part of our culture will transmit cultural messages, if we put children in school and let them play all day, or simply asked teachers to explain their hobbies to the children, then some processes of enculturalisation would be going on. But no one with any real concern for either our children or their education would think such things fulfil a proper role for schools. Certainly if, as Arnold thought, education is a question of passing on, or trying to pass on, the features from our culture that we value, then any such reliance on random processes must be ruled out. Instead we have to select those aspects of our culture which we wish our children to partake of and insist that our educational establishments make sustained and intentional efforts to ensure such participation.     

Teleconsultation as the New Frontier of Educational and Psychological Consultation: Introduction to the Special Issue

ABSTRACT

In this lead-in article, we define teleconsultation as the delivery of consultative services through videoconferencing and other technologies. We then describe the emergence and potential positive impact of teleconsultation in schools. Finally, we introduce the articles that make up this special issue of the Journal of Educational and Psychological Consultation.