Continuous walking and time- and intensity-matched interval walking: Cardiometabolic demand and post-exercise enjoyment in insufficiently active,healthy adults

ABSTRACT

We compared cardiometabolic demand and post-exercise enjoyment between continuous walking (CW) and time- and intensity-matched interval walking (IW) in insufficiently active adults. Sixteen individuals (13 females and three males, age 25.3 ± 11.1 years) completed one CW and one IW session lasting 30 min in a randomised-counterbalanced design. For CW, participants walked at a mean intensity of 65–70% predicted maximum heart rate (HR_max). For IW, participants alternated between 3 min at 80% HR_max and 2 min at 50% HR_max. Expired gas was measured throughout each protocol. Participants rated post-exercise enjoyment following each protocol. Mean HR and V˙O₂ showed small positive differences in IW vs. CW (2, 95%CL 0, 4 beat.min^?1; d = 0.23, 95%CL 0.06, 0.41 and 1.4, 95%CL 1.2 ml.kg^?1.min^?1, d = 0.36, 95%CL 0.05, 0.65, respectively). There was a medium positive difference in overall kcal expenditure in IW vs. CW (25, 95%CL 7 kcal, d = 0.58, 95%CL 0.33, 0.82). Post-exercise enjoyment was moderately greater following IW vs. CW (9.1, 95%CL 1.4, 16.8 AU, d = 0.62, 95%CL 0.06, 0.90), with 75% of participants reporting IW as more enjoyable. Interval walking elicits meaningfully greater energy expenditure and is more enjoyable than CW in insufficiently active, healthy adults.     

Indigenous knowledge and the knowledge commons

This paper studies the frameworks used to understand the commons, the knowledge commons, and indigenous knowledge. Discussion of enclosure, participation, rivalrous and non-rivalrous commons reveals that information and knowledge are resources that increase in value through use. The author examines current IK practices, focusing on documentation strategies and the role of the librarian. Studying IK practices in relation to the commons allows shared language to emerge. Challenging the frameworks, discourse and practices of both IK and the commons exposes and strengthens their connections to one another. This provides a platform for stronger advocacy for IK projects and the commons in general.     

Textbook access and affordability through academic library services: A department develops strategies to meet the needs of students

In the spring of 2015, the University of Minnesota Libraries formed the Content Services department, which is comprised of Interlibrary Loan, Publishing Services, and the Copyright Permissions Service. These three service points, as well as additional Library units, work together with campus partners to save students money on their course materials through a variety of programs and pilot projects. By employing multiple avenues to help faculty and students put affordable content into their existing workflows for providing and accessing required readings, the University of Minnesota Libraries are ensuring that there are many options available that support coursework and ultimately student success.     

乐极生悲

马拉德夫人患有心脏病。对她丈夫的死讯,个个都小心翼翼, 生怕她受到刺激。她妹妹约瑟芬嗫嗫嚅儒、半遮半掩地告诉了她这一噩耗。她丈夫的朋友理查德斯当时也在她身旁。铁路上发生惨案的消息传来时,理查德斯恰好在报社,看到布伦特利·马拉德的名字在“罹难者”中位居首位。他还发去一封电报确认情况属实,便匆忙赶了过来,防止哪个朋友考虑不周,冒冒失失就把噩耗告诉她。     

Finding Common Ground: A Synthesis of Science and Mathematics Teacher Educators’ Experiences with Professional Growth

The seven articles that comprise this Special Issue examine the professional growth of mathematics and science teacher educators across different contexts and different foci of who is the teacher educator being studied. Despite these differences, a common thread running throughout these seven articles is the need for learning to be situated in collaboration with others. In this final article, we examine the contribution of these articles through two perspectives: that of the collaborative contexts supporting the professional growth of mathematics and science teacher educators, and the role of disciplinary knowledge as part of the purpose for teacher educators’ professional growth. We notice that collaboration can take on very different structures in supporting teacher educators’ professional learning due to the different purposes and roles of the teacher educators in the studies. We also notice that while collaboration figures as an important component in all of the studies, the disciplinary specific aspects of collaboration, i.e., how collaboration might be negotiated differently by teacher educators in mathematics and science, is still not well understood. Overall, these articles provide important insights that help to shed new light on the complex and multifaceted nature of teacher educators’ learning and growth and provide productive avenues for future research.

     

USING CONSULTATION TO SUPPORT ENGLISH LEARNERS: THE EXPERIENCES OF BILINGUAL SCHOOL PSYCHOLOGISTS

Through semi‐structured interviews, this study explored 11 bilingual school psychologists’ (BSPs) consultation experiences with teachers of English learners (EL) to determine referral concerns, recommendations made, challenges encountered, preparation experiences, and skills most needed. The most common referral issue concerned students’ academic performance and teachers’ attempts to parse out language acquisition difficulties from learning problems. Principal consultation challenges included the scarcity of trained professionals, teacher bias, and the stress of competing school priorities. BSPs relied most on their interpersonal skills and relationship building skills, as well as their knowledge of EL‐focused interventions and their problem identification skills. Recommendations to their monolingual school psychology colleagues included the need to actively seek out a) language and culture resources, b) relevant professional development opportunities, and c) consultations with fellow BSPs. Study limitations and implications are discussed.     

Qualitative review synthesis: the relationship between inattention and academic achievement

Background: A body of literature has emerged that links inattentive symptoms of attention deficit hyperactivity disorder (ADHD) to poor academic achievement. Major variation across studies renders conclusions about this relationship complex.

Purpose: This review will provide a qualitative synthesis of these studies that (1) use community samples and (2) examine inattention as a separate dimension from hyperactivity/impulsivity. The aim of this review is to ascertain whether the relationship documented between inattention and academic outcomes in ADHD also holds for the dimensional trait of inattention as manifest in non-clinical community samples of children and adolescents, taking into consideration both academic achievement and academic performance across age.

Design and methods: A comprehensive search was carried out using two databases. The PRISMA guidelines were used to report the search steps. The QUIPS tool was used to rate the quality of studies, followed by a best evidence synthesis to summarise these results.

Results: Out of 1748 citations found, 27 articles met the specific inclusion criteria. Results point to a strong effect according to the best evidence synthesis: 7 studies that have low risk of bias found that teacher-rated inattention is significantly predicative of poor academic achievement in community samples of children.

Conclusions: This review provides support for a consistent, negative relationship between classroom inattention as reported by teachers and both standardised academic test achievement and classroom performance outcomes for children in preschool (moderate evidence), elementary school and longitudinally from elementary to high school. The average relationship was stronger when classroom performance was measured, as compared to standardised achievement. However, the quantitative strength of relationship has not been confirmed with a meta-analysis due to heterogeneity and too few high-quality studies identified. Variance across the studies in terms of the strength of association suggests that other unexamined factors (e.g. cognitive function or motivation) may be contributing to this relationship. Implications for educators and clinicians who work within the school setting are discussed.