Validation of VO2 Prediction Equations in Aquatic Treadmill (ATM) Exercise

The purpose of this study is to validate the accuracy of the regression models created by Greene et al. (2011) for the prediction of oxygen consumption for aquatic treadmill (ATM) exercise at different speeds and jet resistances. Twenty-one healthy individuals completed this study. Prior to testing V02peak, height, weight, and body composition were measured. At least 48 hours following V02peak testing participants completed five three-minute submaximal trials in the ATM. Speed was self-selected between 53 and 201 m-min-I to represent light, moderate, and somewhat hard conditions. Water jet.,resistance was between 0-80%. ATM speed and jet resistance were randomized for the trials. Participants rested for three minutes between trials. Oxygen consumption (V02) was measured continuously during trials. Measured V02 was compared to predicted V02. Out of 105 trials completed in the ATM, 90 resulted in a greater V02 than predicted by the Greene et al. (2011) equations. Mean and predicted V02 for all ATM trials differed by 3.6 ml - kg-I - min-I (27.7 ± 9.1 mI- kg-I - min-I vs 24.1 ± 7.2 ml - kg-I - min-I). Mean and predicted V02 for trials withjet resistance between 0-25% differed by 3.1 mI- kg-I - min-I ,(25.7 ± 7.8 vs 22.6 ± 6.8 ml - kg-I - min-I, respectively). Mean and predicted V02 for trials with 25-100% jet resistance differed by 3.8 ml- kg-I - min-I (28.5 ± 9.5 vs 24.7 ± 7.2 mI- kg-I - min-I, respectively). Paired (-test and generalized estimating equations (GEE) showed a significant correlation (p\u3c .001) between predicted and measured V O2 for both equations. There was no significant correlation (p\u3e 0.05) between V02, trial number, and BMI. Using percent-predicted value, the 0-25% equation underestimated V02 by 14% and the 25-100% equation underestimated V02 by 15%. The effect size for the 0-25 equation was .43, and the effect size for the 25-100 equation was .45. Our findings demonstrate the Greene equations underestimate V02 by an average of3.6 ml • kg-1 • min-I. This value tends to be greater than reported for previously published land treadmill (TM) running equations. Rehabilitation specialists and performance coaches may want to consider this degree of precision when using these equations for their clients

An assessment to determine how a franchisee\u27s thorough understanding of the disclosure statement would affect potential legal pitfalls in a franchisor-franchisee relationship

An analysis of a hotel franchisee\u27s thorough understanding of the franchisor\u27s disclosure statement was conducted with franchisee participants from four major hotel chains in Southern California and Las Vegas. An assessment of these results was used to determine if there were correlations between the franchisee\u27s perceived clarity of the document and the number of legal problems subsequently encountered. The results from this paper will give prospective hotel franchisees guidelines to follow that will help them make more informed and intelligent franchise purchase decisions

Multi-staged Research at the Denmark Site, A Small Early-Middle Mississippian Town

Early-Middle Mississippian settlements in the hinterlands of West Tennessee have largely gone unstudied. The void in settlement data leaves a gap in understanding Early-Middle Mississippian settlements within the Mid-South region. A multi-staged research design at the Denmark Site (40MD85) in Madison County, Tennessee was employed to determine a settlement system at Denmark. Denmark was originally thought to be a Vacant Mound Center that did not support an associated habitation, but topographic mapping, LiDAR data, magnetometry survey, and targeted excavation reveal that the Denmark mound group represents a sizeable settlement

Light field and crosshair quality assurance test using a simple lens system

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/134762/1/mp4130.pd

What and how: doing good research with young people, digital intimacies, and relationships and sex education

© 2020, © 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. As part of a project funded by the Wellcome Trust, we held a one-day symposium, bringing together researchers, practitioners, and policymakers, to discuss priorities for research on relationships and sex education (RSE) in a world where young people increasingly live, experience, and augment their relationships (whether sexual or not) within digital spaces. The introduction of statutory RSE in schools in England highlights the need to focus on improving understandings of young people and digital intimacies for its own sake, and to inform the development of learning resources. We call for more research that puts young people at its centre; foregrounds inclusivity; and allows a nuanced discussion of pleasures, harms, risks, and rewards, which can be used by those working with young people and those developing policy. Generating such research is likely to be facilitated by participation, collaboration, and communication with beneficiaries, between disciplines and across sectors. Taking such an approach, academic researchers, practitioners, and policymakers agree that we need a better understanding of RSE’s place in lifelong learning, which seeks to understand the needs of particular groups, is concerned with non-sexual relationships, and does not see digital intimacies as disconnected from offline everyday ‘reality’

Analysis of couch position tolerance limits to detect mistakes in patient setup

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135643/1/acm20207.pd

Staphylococcus aureus Decolonization Protocol Decreases Surgical Site Infections for Total Joint Replacement

We investigated the effects of implementation of an institution-wide screening and decolonization protocol on the rates of deep surgical site infections (SSIs) in patients undergoing primary knee and hip arthroplasties. 2058 patients were enrolled in this study: 1644 patients in the treatment group and 414 in the control group. The treatment group attended preoperative admission testing (PAT) clinic where they were screened for MSSA and MRSA colonization. All patients were provided a 5-day course of nasal mupirocin and a single preoperative chlorhexidine shower. Additionally, patients colonized with MRSA received Vancomycin perioperative prophylaxis. The control group did not attend PAT nor receive mupirocin treatment and received either Ancef or Clindamycin for perioperative antibiotic prophylaxis. There were a total of 6 deep infections in the control group (1.45%) and 21 in the treatment group (1.28%); this represented a decrease of 13% (P = .809) in the treatment versus control group. This decrease represented a positive trend in favor of staphylococcus screening, decolonization with mupirocin, and perioperative Vancomycin for known MRSA carriers

A Mechanistic Approach to Cross-Domain Perceptual Narrowing in the First Year of Life

Language and face processing develop in similar ways during the first year of life. Early in the first year of life, infants demonstrate broad abilities for discriminating among faces and speech. These discrimination abilities then become tuned to frequently experienced groups of people or languages. This process of perceptual development occurs between approximately 6 and 12 months of age and is largely shaped by experience. However, the mechanisms underlying perceptual development during this time, and whether they are shared across domains, remain largely unknown. Here, we highlight research findings across domains and propose a top-down/bottom-up processing approach as a guide for future research. It is hypothesized that perceptual narrowing and tuning in development is the result of a shift from primarily bottom-up processing to a combination of bottom-up and top-down influences. In addition, we propose word learning as an important top-down factor that shapes tuning in both the speech and face domains, leading to similar observed developmental trajectories across modalities. Importantly, we suggest that perceptual narrowing/tuning is the result of multiple interacting factors and not explained by the development of a single mechanism

Migration check tool: automatic plan verification following treatment management systems upgrade and database migration

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135152/1/acm20350.pd