36 research outputs found

    ReïŹning and regaining skills in ïŹxation/diversiïŹcation stage performers: The Five-A Model

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    Technical change is one of many factors underpinning success in elite, fixation/diversification stage performers. Surprisingly, however, there is a dearth of research pertaining to this process or the most efficacious methods used to bring about such a change. In this paper we highlight the emergent processes, yet also the lack in mechanistic comprehension surrounding technical change, addressing issues within the motor control, sport psychology, coaching and choking literature. More importantly, we seek an understanding of how these changes can be made more secure to competitive pressure, and how this can be embedded within the process of technical change. Following this review, we propose The Five-A Model based on successful coaching techniques, psychosocial concomitants, the avoidance of choking and principles of effective behaviour change. Specific mechanisms for each stage are discussed, with a focus on the use of holistic rhythm-based cues as a possible way of internalising changes. Finally, we suggest the need for further research to examine these five stages, to aid a more comprehensive construction of the content and delivery of such a programme within the applied setting

    The Cholecystectomy As A Day Case (CAAD) Score: A Validated Score of Preoperative Predictors of Successful Day-Case Cholecystectomy Using the CholeS Data Set

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    Background Day-case surgery is associated with significant patient and cost benefits. However, only 43% of cholecystectomy patients are discharged home the same day. One hypothesis is day-case cholecystectomy rates, defined as patients discharged the same day as their operation, may be improved by better assessment of patients using standard preoperative variables. Methods Data were extracted from a prospectively collected data set of cholecystectomy patients from 166 UK and Irish hospitals (CholeS). Cholecystectomies performed as elective procedures were divided into main (75%) and validation (25%) data sets. Preoperative predictors were identified, and a risk score of failed day case was devised using multivariate logistic regression. Receiver operating curve analysis was used to validate the score in the validation data set. Results Of the 7426 elective cholecystectomies performed, 49% of these were discharged home the same day. Same-day discharge following cholecystectomy was less likely with older patients (OR 0.18, 95% CI 0.15–0.23), higher ASA scores (OR 0.19, 95% CI 0.15–0.23), complicated cholelithiasis (OR 0.38, 95% CI 0.31 to 0.48), male gender (OR 0.66, 95% CI 0.58–0.74), previous acute gallstone-related admissions (OR 0.54, 95% CI 0.48–0.60) and preoperative endoscopic intervention (OR 0.40, 95% CI 0.34–0.47). The CAAD score was developed using these variables. When applied to the validation subgroup, a CAAD score of ≀5 was associated with 80.8% successful day-case cholecystectomy compared with 19.2% associated with a CAAD score >5 (p < 0.001). Conclusions The CAAD score which utilises data readily available from clinic letters and electronic sources can predict same-day discharges following cholecystectomy

    Levels of maternal plasma corticotropin-releasing factor and urocortin during labor

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    OBJECTIVE: Corticotropin-releasing factor (CRF) is produced by the placenta and intrauterine tissues and secreted in increasing amounts from early to term pregnancy. In the presence of labor, a more incisive increase in CRF levels has been described, and women with preterm labor or those destined to have premature delivery have higher midpregnancy CRF levels than those who deliver at term. Urocortin is a 40-amino acid peptide belonging to the CRF family, expressed by human trophoblast and fetal membranes, which has the same biologic effects as CRF. Acting on the same CRF receptors, urocortin stimulates myometrial contractility and ACTH and prostaglandin release from cultured human placental cells. Because no data exist about urocortin levels in the maternal circulation at parturition, we investigated whether maternal plasma urocortin and CRF levels change according to cervical dilatation in healthy pregnant women at term labor. METHODS: In a cross-sectional study of labor, a single maternal blood sample was collected from healthy pregnant women at term (n 40); in a second longitudinal study, plasma samples were collected longitudinally in a subset of patients (n 8) throughout labor, according to a Bishop score evaluation. RESULTS: Both maternal plasma CRF and urocortin levels were higher in labor than those previously reported during pregnancy, but they did not change significantly during the different stages of labor when evaluated longitudinally. Some patients showed a trend toward increasing levels, whereas others had variable concentrations. CONCLUSION: Neither CRF nor urocortin levels changed during the progression of spontaneous labor

    Relationships Between Game Attributes and Learning Outcomes: Review and Research Proposals

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    Games are an effective and cost-saving method in education and training. Although much is known about games and learning in general, little is known about what components of these games (i.e., game attributes) influence learning outcomes. The purpose of this article is threefold. First, we review the literature to understand the “state of play” in the literature in regards to learning outcomes and game attributes—what is being studied. Second, we seek out what specific game attributes have an impact on learning outcomes. Finally, where gaps in the research exist, we develop a number of theoretically based proposals to guide further research in this area
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