Effects of Exercise Training versus Attention on Plasma B-type Natriuretic Peptide, 6-Minute Walk Test and Quality of Life in Individuals with Heart Failure

Purpose

The purpose of this study was to compare an Exercise Training Group (EX) with an Attention-Control Group (AT-C) to more specifically assess the impact of exercise training on individuals with heart failure (HF).

Methods

Forty-two individuals with HF were randomized to AT-C or EX that met with the same frequency and format of investigator interaction. Baseline, 12- and 24-week measurements of B-type naturetic peptide (BNP), 6-minute walk test (6-MWT), and the Kansas City Cardiomyopathy Questionnaire (KCCQ) were obtained.

Results

BNP tended to increase in the AT-C while remaining stable in the EX over time. A clinically significant increase in 6-MWT was demonstrated by the EX but not the AT-C. The EX achieved a clinically significant change on the KCCQ at 12 weeks, with further improvement by 24 weeks, while the AT-C demonstrated a clinically significant change at 24 weeks.

Conclusions

Attention alone was inadequate to positively impact BNP levels or 6-MWT distances, but did have a positive impact on quality of life after 24 weeks. Although exercise offers enhanced benefits, individuals with HF unable to participate in an exercise program may still gain quality of life benefits from participation in a peer-support group that discusses topics pertinent to HF.Key Words: heart failure, attention, exercise     

Self-regulation of motivation when learning online: the importance of who, why and how

Successful online students must learn and maintain motivation to learn. The Self-regulation of Motivation (SRM) model (Sansone and Thoman 2005) suggests two kinds of motivation are essential: Goals-defined (i.e., value and expectancy of learning), and experience-defined (i.e., whether interesting). The Regulating Motivation and Performance Online (RMAPO) project examines implications using online HTML lessons. Initial project results suggested that adding usefulness information (enhancing goals-defined motivation) predicted higher engagement levels (enhancing experience), which in turn predicted motivation (interest) and performance (HTML quiz) outcomes. The present paper examined whether individual interest in computers moderated these results. When provided the utility value information, students with higher (relative to lower) individual interest tended to display higher engagement levels, especially when usefulness was framed in terms of personal versus organizational applications. In contrast, higher engagement levels continued to positively predict outcomes regardless of individual interest. We discuss implications for designing optimal online learning environments.     

Cultural Competence Development,Critical Service Learning,and Latino/a Youth Empowerment: A Qualitative Case Study

As universities create service-learning programs, educators are experimenting with pedagogical approaches that enhance learning outcomes while benefiting communities. We present a qualitative case study of a radio-based, service-learning program, grounded in a Freirean foundation and aimed at developing the cultural competence and sense of citizenship of undergraduate students while empowering working-class high school Latino/a students. Undergraduate students benefited the most from the program; they enhanced their cultural competence skills, awareness of social issues, and sense of civic responsibility. Latino/a high school students who stayed in the program for at least a year developed self-confidence, self-esteem, and a sense of self-efficacy.     

On the origin of microbial magnetoreception

A broad range of organisms, from prokaryotes to higher animals, have the ability to sense and utilize Earth''s geomagnetic field—a behavior known as magnetoreception. Although our knowledge of the physiological mechanisms of magnetoreception has increased substantially over recent decades, the origin of this behavior remains a fundamental question in evolutionary biology. Despite this, there is growing evidence that magnetic iron mineral biosynthesis by prokaryotes may represent the earliest form of biogenic magnetic sensors on Earth. Here, we integrate new data from microbiology, geology and nanotechnology, and propose that initial biomineralization of intracellular iron nanoparticles in early life evolved as a mechanism for mitigating the toxicity of reactive oxygen species (ROS), as ultraviolet radiation and free-iron-generated ROS would have been a major environmental challenge for life on early Earth. This iron-based system could have later been co-opted as a magnetic sensor for magnetoreception in microorganisms, suggesting an origin of microbial magnetoreception as the result of the evolutionary process of exaptation.     

A model for personal and professional support for nurture group staff: to what extent can group process consultation be used as a resource to meet the challenges of running a nurture group?

This article details a mixed methods study designed to examine the impact of a group process consultation model in helping staff manage challenging behaviour in the nurture group setting. It relates to two geographical clusters of staff, including teachers and teaching assistants, running 11 nurture groups in a major metropolitan area in the UK, facilitated by an educational psychologist (EP). For 32 consultation referrals, teacher-rated levels of concern were compared before and after each session revealing a consistent drop, which was maintained throughout the intervention (p < 0.001). Measures of self-confidence and self-efficacy collected at the beginning of the group process consultation programme, and at the end of the first year of operation, revealed that teacher and teaching assistant self-confidence had improved significantly (p < 0.001) along with aspects of teacher self-efficacy (p = 0.023). A focus group, comprising eight teachers and teaching assistants, identified several themes and provided further elaboration on the outcomes of involvement.