Identifying and preventing disordered eating among athletes: Perceptions of track and field coaches

ObjectiveThis study aimed to identify the strategies employed by coaches when identifying disordered eating (DE) among track and field athletes.DesignThis was a qualitative study and an inductive thematic analysis was conducted.MethodSemi structured interviews were conducted with eleven track and field coaches, with experience of coaching at national and international level. The interviews were recorded, transcribed verbatim and analysis was conducted.ResultsTrack and field coaches reported using physical, social and performance indicators to identify disordered eating in their athletes. Coaches also monitored their athletes' eating attitudes and behaviors. Weight loss (both observed and objectively monitored) was considered to be a key indicator of disordered eating. Coaches placed a high level of importance on weight for performance, and an “ideal” female athlete body. Previous experiences of detecting disordered eating and a close relationship with the athlete facilitated the identification of disordered eating. Athlete secrecy and masking behaviors, difficulties in communication and coaches' stereotypical beliefs were found to complicate the identification process.ConclusionsThis study highlights the need for additional information, advice and guidance for track and field coaches to improve their knowledge and confidence in identifying disordered eating among their athletes.     

Reflections on athletes and eating disorders

ObjectivesThe purposes of this paper were to offer reflections, thoughts, and observations on the burgeoning research regarding eating disorders in athletes over the past 25 years, to comment on the findings and clinical implications of the studies contained in this special issue, and to provide suggestions for future research.ResultsDisordered eating and eating disorders are complex, multidimensional, and multiply determined, and can affect the health and performance of athletes in both genders and most sports. Although coaches and teammates can be significant sources of weight and body image pressure, they can also play a positive role in identification and prevention.ConclusionsFurther research is needed in several areas. These include a broader focus that includes athletes believed to be at less risk, most notably males and non-lean sport athletes, and ironically younger athletes, who may be at greatest risk. We also need more research related to treatment of athletes with eating disorders and especially how we might better motivate them for recovery.     

Behavior model and guidance strategies of the crossing behavior at unsignalized intersections in the connected vehicle environment

The connected vehicle environment is considered to be a disruptive technology that reconstructs the way people travel and road transport, and more importantly, ensures traffic safety. This study aims on investigating drivers’ interactive behavior at an unsignalized intersection in the connected vehicle environment. Specifically, a simplified iterative behavior model was established to predict the potential conflicting vehicles’ behavior. Furthermore, based on principles of safety, efficiency, and comfort, the guidance strategies were proposed to help the subject vehicles cross intersections. A multi-user driving simulator experiment was carried out and 48 participants were divided into 24 pairs to complete the test. The simplified iterative behavior model was constructed based on the dynamic interaction of each participant pair as they approached the intersection from straight-crossing directions. The comparison results showed the behavior model was an effective microscopic simulation tool for vehicles at unsignalized intersections with high accuracy and good applicability. Then, the guidance strategies under different compliance rates (baseline, 50 % compliance, 100% compliance) were evaluated based on three indexes i.e. standard deviation of speed (SDS), duration of crossing the intersection (DCI), and time exposed post-encroachment-time (TEP). The numerical simulation results showed that the guidance strategies could effectively improve the safety and efficiency of drivers crossing the intersection under both 50% and 100% compliance rates. Besides, with the increase of compliance rate, the comfort level also increased evidently. This study can provide theoretical and algorithmic references for microscopic simulation and guidance strategy at unsignalized intersections in the connected vehicle environment.     

Loud versus quiet praise: A direct behavioral comparison in secondary classrooms

The purpose of the present study was to compare the effects of teacher public (i.e., loud) and private (i.e., quiet) praise on students' appropriately engaged behavior (AEB) and disruptive behaviors (DB). Employing a combined multiple-baseline withdrawal design, the effects of loud and quiet praise were assessed across two pairs of secondary classrooms. Each classroom's mean percentage of observed intervals of AEB and DB across loud and quiet praise intervention phases was assessed and compared. Overall, visual analysis of the data, multilevel modeling, and effect sizes showed that both loud and quiet praises were more effective than no treatment at increasing AEB and decreasing DB. In addition, there were no statistical or clinically significant differences between the loud and quiet praise interventions. The results are discussed in light of appropriate practices and controversies in the literature.     

High cognitive sensitivity to activational effects of testosterone in parents of offspring with autism spectrum disorders

The existence of mild forms of autistic-like characteristics in parents of children with autism spectrum disorders (ASDs) has been defined as a broader autistic phenotype (BAP). Excessive prenatal exposure to testosterone (T) seems to play a role in its development. The aims of this study were to characterize whether ASD parents show masculinized brains or high T prenatal exposure compared to a normative population, using cognitive questionnaires, and also to examine the T level changes in response to different cognitive tasks. ASD parents were found to present higher autistic and lower empathic trait scores than controls. They also have higher T levels and magnitude of T response to cognitive tasks. Specific correlation patterns between masculinized brain types and T levels were observed only in ASD parents. Thus, it seems that first-degree relatives of people with ASD have high T levels during task performance, which, in turn, produce slight cognitive masculinization. Our findings should be considered for understanding the role of androgens in the etiology of ASD. Nevertheless, the masculinization parameters described throughout the study are subtle and require further analysis.     

Developmental plateau in visual object processing from adolescence to adulthood in autism

A lack of typical age-related improvement from adolescence to adulthood contributes to face recognition deficits in adults with autism on the Cambridge Face Memory Test (CFMT). The current studies examine if this atypical developmental trajectory generalizes to other tasks and objects, including parts of the face. The CFMT tests recognition of whole faces, often with a substantial delay. The current studies used the immediate memory (IM) task and the parts-whole face task from the Let’s Face It! battery, which examines whole faces, face parts, and cars, without a delay between memorization and test trials. In the IM task, participants memorize a face or car. Immediately after the target disappears, participants identify the target from two similar distractors. In the part-whole task, participants memorize a whole face. Immediately after the face disappears, participants identify the target from a distractor with different eyes or mouth, either as a face part or a whole face.Results indicate that recognition deficits in autism become more robust by adulthood, consistent with previous work, and also become more general, including cars. In the IM task, deficits in autism were specific to faces in childhood, but included cars by adulthood. In the part-whole task, deficits in autism became more robust by adulthood, including both eyes and mouths as parts and in whole faces. Across tasks, the deficit in autism increased between adolescence and adulthood, reflecting a lack of typical improvement, leading to deficits with non-face stimuli and on a task without a memory delay. These results suggest that brain maturation continues to be affected into adulthood in autism, and that the transition from adolescence to adulthood is a vulnerable stage for those with autism.     

反复胸闷胸痛伴心理精神障碍的诊疗进展

近年来,临床中关于反复胸闷胸痛患者的较高误诊率引起了广大医务工作者的重视,此类患者伴有的心理精神障碍往往被忽视,得不到合理的治疗,预后较差.本文主要讨论关于反复胸闷胸痛患者病因的鉴别、心理精神障碍引起胸闷胸痛的机制、胸闷胸痛与心理精神障碍的关系、“双心”医学诊疗模式以及反复胸闷胸痛的治疗进展,通过增强临床医生对“双心”医学的认识降低胸闷胸痛患者的误诊率、漏诊率,减少过度治疗,通过心血管医学和心理干预联合治疗,改善心血管疾病患者的预后、降低死亡率.     

PCI术前术后的心理障碍识别与处理

概述冠心病经皮冠状动脉介入治疗（PCI）术前术后患者合并心理障碍的较高发生率以及心理障碍对冠心病发生、发展及预后的影响,分析 PCI 术前术后患者出现焦虑抑郁等心理障碍的原因、产生机制及影响因素,强调心内科医生应及时识别 PCI 术前术后患者出现的心理障碍,并以“双心医学”方式对其进行心理精神医学及心血管专科医学治疗,同时对心血管专科医学治疗效果不明显的冠心病 PCI 患者,进行相关的鉴别诊断后也要进行心理精神医学的诊断和治疗,以便有利于 PCI 术患者的康复和预后,减少不必要的检查和治疗。