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Using lactate threshold to predict 5-km treadmill running performance in veteran athletes.
No full textMeasuring lactate threshold to predict endurance performance is difficult among veteran athletes, due to age-related decreases in net lactate concentration. The objective of this study was to determine whether lactate threshold, as assessed using the maximal deviation method (Dmax), which is not dependent on net values of lactate, could be used as a more valid measure of 5-km treadmill running performance than other methods of determining lactate threshold. Veteran runners (18 male and 18 female, aged 47.3±6.7 years) performed an incremental exercise test to establish mean treadmill velocity at lactate threshold using Dmax, a log-log method, a visual method, and a 4-mmol.L-1 method, and, on a separate occasion, completed a 5-km time trial. Mean treadmill velocity at Dmax was 12.2±1.8 km.h-1, not being significantly different to mean treadmill velocity (12.1±1.8 km.h-1) attained during the 5-km time trial (p>0.05); velocities were also significantly correlated (r=0.92, p<0.001), and limits of agreement narrow (-1.61 to 1.35 km.h-1). Correlations were weaker and limits of agreement wider for the other methods of lactate threshold determination. Using a two-way, mixed-methods ANOVA, there was no significant effect of sex when using the different methods of determining Tlac (F4,136=3.70, p=0.15). Mean treadmill velocity, when using Dmax for determining lactate threshold, can be used to predict 5-km running performance among male and female veteran athletes
Back to the future - 30 years of Adviser
No full textAs Adviser celebrates its 30th anniversary, Richard Machin looks back at the
benefit issues that were being discussed in issue 1 of the magazine and finds
some striking similarities with current themes in the social welfare law sector
The effects of REBT and credos on irrational beliefs and resilient qualities in athletes
Get PDFThe use of rational emotive behaviour therapy (REBT) in sport psychology has received little attention in research to date but is steadily growing. Therefore, to further aid the building body of research, this study examines the efficacy of REBT (comprising of five counselling sessions, and four homework assignments) in decreasing self-reported irrational beliefs (iBs) and raising self-reported resilience levels in five elite squash players from Malaysia using a single-case multiple-baseline across-participants design. Visual and graphical analysis revealed that REBT reduced self-reported iBs in all athletes and raised self-reported resilience levels in some athletes. Athlete feedback, reflections on the usage of REBT, credos, and practicing in Malaysia are discussed along with guidance for its future use in relevant settings
Gamified and “Classical” Psychometric Assessment – Convergent, Divergent, and Incremental Validity
Get PDFGaming the game: Game-Based Assessment and self presentation bias.
Get PDFSelf-presentation is a serious issue in psychological assessment, and much effort goes into preventing and/or counterbalancing its effect on test scores. But what happens when the test format does not require a deliberate action? Can players game GBAs? With one experimental study and two non-experimental studies suggesting the same answer, this paper will demonstrate GBAs resilience against self-presentation by comparing candidates and testing populations, iOS and Android users, and the performance of people who were instructed to play differently from how they would hav
Shank – to – Vertical - Angle in AFOs: Static versus dynamic assessment in a series of cases.
Get PDFBackground
Tuning of ankle-foot orthosis footwear combinations (AFO-FC) has been shown to be effective in aligning the ground reaction force (GRF) closer to the joint rotation center of the lower limbs. The notion of “tuning” the AFO-FC is largely dependent on the shank-to-vertical angle (SVA), which is measured while the subject is static but is meant to represent the SVA in mid-stance.
Objectives
The aim of this study was to compare the SVA measured in standing position with the SVA at temporal mid-stance (TMST) in a series of cases.
Study Design
This study is a case series.
Methods
Four participants had their AFO-FC tuned to optimum SVA using video-based gait analysis with GRF overlay. Initially, the SVA was measured with the subject standing in relaxed stance on the force plate with approximately equal weight on both feet. The SVA was then assessed at TMST.
Results
The measurement of the SVA of the AFO-FC in relaxed stance seems to be the same as the measurement of the SVA in TMST.
Conclusions
Measuring the SVA of the AFO-FC in relaxed stance is an accurate way of determining the SVA at TMST.
Clinical Relevance
Ankle-foot orthosis footwear combination tuning is considered an essential aspect of AFO prescriptions. The SVA is a key principle of AFO-FC tuning. The method for determining the SVA has yet to be tested to ensure that the static measurement correlates to the dynamic measurement during gait
Resource endowment and opportunity cost effects along the stages of entrepreneurship
Get PDFIn this paper, the start-up process is split conceptually into four stages: considering entrepreneurship, intending to start a new business in the next 3 years, nascent entrepreneurship and owning-managing a newly established business. We investigate the determinants of all of these jointly, using a multinomial logit model; it allows for the effects of resources and capabilities to vary across these stages. We employ the Global Entrepreneurship Monitor database for the years 2006–2009, containing 8269 usable observations from respondents drawn from the Lower Layer Super Output Areas in the East Midlands (UK) so that individual observations are linked to space. Our results show that the role of education, experience, and availability of ‘entrepreneurial capital’ in the local neighbourhood varies along the different stages of the entrepreneurial process. In the early stages, the negative (opportunity cost) effect of resources endowment dominates, yet it tends to reverse in the advanced stages, where the positive effect of resources becomes stronger
Neon Vibration
No full textAn animated étude with rhythmically transforming geometric vector style imagery. It attempts to create rich visual textures and lighting effects from a minimal input coupled with the use of video feedback. The graphics were created by a visual instrument, which reacts to audio in real-time. Additional compositional structure and complexity was determined by the composer. The algorithmically generated music was inspired by the 'dance chimes' device (http://www.richter-spielgeraete.de/catalog-detail/items/9.06000-tanzglockenspiel-dance-chimes.html). This is an instrument that triggers bell like timbres when one of nine pitched chimes are stepped on by a user. Two Reaktor block modular ensembles produce sonic textures which are harmonised on a pentatonic scale used by the chimes
Holistic Approach Framework for Cloud Computing Strategic Decision-Making in the Healthcare Sector (HAF-CCS)
No full textCloud Computing is an evolving information technology paradigm that impacts many sectors in many countries. Cloud Computing offers IT services anytime, anywhere via any device and is applicable to healthcare organisations, offering a potential cost saving of 15% to 37%. This research investigates Cloud Computing as a facilitating technology to solve some of the challenges experienced by healthcare organisations such as the high cost of implementing IT solutions. The purpose of this research is to develop and apply an Holistic Approach Framework for Cloud Computing Strategic Decision-Making in the Healthcare Sector (HAF-CCS) to provide a systematic approach to the adoption of Cloud Computing that considers different perspectives. Although, Cloud Computing is becoming widely used, there is limited evidence in the literature concerning its application in the Saudi healthcare sector. In the thesis, current cloud adoption decision-making frameworks are analysed and the need to develop a strategic framework for Cloud Computing decision-making processes which emphasises a multidisciplinary holistic approach is identified. Understanding the different strategic aspects of Cloud Computing is important and could encourage organisations to adopt this model of computing since the decision regarding whether to adopt Cloud Computing is potentially a complex process; there are many perspectives to be considered, and studying this process requires a multiple perspective framework. The framework developed in this thesis aims to support decision-makers in healthcare organisations by covering five perspectives of Cloud Computing adoption: Organisation, Technology, Environment, Human and Business. The framework integrates the TOE (Technology-Organisation-Environment) framework with the Information Systems Strategy Triangle (IS Triangle) and the HOT-fit (Human- Organisation-Technology) model to support an holistic evaluation of the determinants of Cloud Computing adoption in healthcare organisations. The factors that will affect Cloud Computing adoption in healthcare organisations in Saudi Arabia have been identified using quantitative and qualitative methods, and a case study approach was implemented to validate the framework. The results of the validation showed that the framework can support decision-makers in understanding an organisation’s position regarding Cloud Computing and identifying any gaps that may hinder Cloud Computing adoption. The framework can also provide healthcare organisations with a strategic assessment tool to help in gaining the advantages of Cloud Computing
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