A Maximal Graded Exercise Test to Accurately Predict VO2max in 18–65-Year-Old Adults

The purpose of this study was to develop an age-generalized regression model to predict maximal oxygen uptake (VO_2max) based on a maximal treadmill graded exercise test (GXT; George, 1996) George, J. D. 1996. Alternative approach to maximal exercise testing and VO_2max prediction in college students. Research Quarterly for Exercise and Sport, 67: 452–457. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]. Participants (N?=?100), ages 18–65 years, reached a maximal level of exertion (mean?±?standard deviation [SD]; maximal heart rate [HR_max]?=?185.2?±?12.4 beats per minute (bpm); maximal respiratory exchange ratio [RER_max]?=?1.18?±?0.05; maximal rating of perceived exertion (RPE_max)?=?19.1?±?0.7) during the GXT to assess VO_2max (mean?±?SD; 40.24?±?9.11 mL·kg^?1·min^?1). Multiple linear regression generated the following prediction equation (R?=?.94, standard error of estimate [SEE]?=?3.18 mL·kg^?1·min^?1, %SEE?=?7.9): VO_2max (mL·kg^?1·min^?1)?=?13.160?+?(3.314 × gender; females?=?0, males?=?1) ? (.131 × age) ? (.334 × body mass index (BMI))?+?(5.177 × treadmill speed; mph)?+?(1.315 × treadmill grade; %). Cross validation using predicted residual sum of squares (PRESS) statistics revealed minimal shrinkage (R_p ?=?.93 and SEE _p ?=?3.40 mL·kg^?1·min^?1); consequently, this model should provide acceptable accuracy when it is applied to independent samples of comparable adults. Standardized β-weights indicate that treadmill speed (.583) was the most effective at predicting VO_2max followed by treadmill grade (.356), age (?.197), gender (.183), and BMI (?.148). This study provides a relatively accurate regression model to predict VO_2max in relatively fit men and women, ages 18–65 years, based on maximal exercise (treadmill speed and grade), biometric (BMI), and demographic (age and gender) data.     

What ISPI and performance improvement mean to me

This year, the International Society for Performance Improvement (ISPI) celebrates its 50th anniversary. Over the past half century, our field has moved from programmed instruction to performance and instruction to performance improvement. This new column reflects on 50 years of member memories and what the organization and the field have meant to each of this column's contributors. If you would like to add to the dialogue, please contact the PI journal editors: publications@ispi.org     

Bullets or butterflies? Teaching, research and knowledge creation

This article explores current debates about the development of teaching and learning in the UK. The author examines how these debates are mirrored in discussions about teacher education and notions of professionalism and professional development. There is an account of the history of thinking about pedagogy in the UK, with a particular focus on the work of Lawrence Stenhouse and his ??teacher as researcher?? conception of curriculum and teacher development. The author argues that this is a strong and useful model for the development of pedagogy. The ??teacher as researcher?? model is offered as a framework that integrates many different perspectives. The article concludes with a discussion of the blocks and facilitators to this vision of the teacher as researcher being adopted.     

Development and Testing of a Curriculum to Improve Decision-Making Skills in Middle and High School Students

Adolescence is a key developmental period for developing and strengthening brain circuits that underlie effective decision-making skills, which profoundly impact lifelong health and academic, professional, and economic achievement. But decision-making skills are learned rather than inherent. School presents an ideal environment for the direct instruction and frequent practice of decision-making skills, however, finding time in the school day is a challenge for contemporary educators. We have developed a learning curriculum that involves active student participation to strengthen decision-making skills that is sufficiently flexible and adaptable to be utilized in a wide variety of content-specific classwork. Using this curriculum, students show evidence of improved decision-making skills, including increased consideration of the number of factors that are relevant to their decision, the resources needed to make a particular decision, and both the short-term and long-term consequences of decisions.     

Natural hazard preparedness in an Auckland community: child and community perceptions

Community engagement in natural hazard preparedness is crucial to ensure sustainable initiatives. Children are important members of communities, and can actively contribute to community preparedness. This article presents research undertaken with 11- to 12-year-old students from a school in Auckland, New Zealand, and leaders associated with the school community regarding their perceptions of the role of schools, communities and children in natural hazard preparedness. The findings show that the students believe they can be effective in promoting preparedness in their school, homes and community, and act as leaders in this capacity. Community leaders stated that preparedness actions should be culturally relevant, community initiated and owned and inclusive of child perspectives. From the combined perspectives of students and community leaders, this work concludes that emergency management must engage in culturally responsive ways with Māori and Pacific communities to enable community preparedness initiatives that are tailored to the cultural values and practices of communities most at risk from natural hazards. Further, it concludes that children have an important voice in community preparedness, which could be encouraged through school and community initiatives.     

Building a new culture of teaching & learning

The search is on for new and powerful ways to engage students, but today's campuses need more than new techniques. They need to build a culture where these new approaches can take hold and thrive.