Eating disorder prevention initiatives for athletes: A review     

Rachel J. Bar  Stephanie E. Cassin  Michelle M. Dionne 《European Journal of Sport Science》2016,16(3):325-335

A substantial amount of evidence suggests that collegiate and elite athletes involved in weight-sensitive sports are at greater risk of developing eating disorders (EDs) than the general population. With the limited effectiveness of treatment for EDs, prevention of EDs has been broadly considered in the literature. The present paper reviewed the existing literature on ED prevention programmes for athletes in order to determine the current status of prevention programmes and recommend future directions. The available literature suggests that selective, primary interventions with multiple targets and an interactive multimodal approach appear most effective. Current challenges in the field, including lack of longitudinal research, hesitation by the sport community to be involved in ED research and poor cross-field communication and collaboration, are also explored. The lack of dissemination of evidence-based prevention programmes and the simultaneous promotion of prevention programmes that have not yet been empirically examined are also discussed. Based on these observations future directions are recommended.  相似文献   

Hip and upper extremity kinematics in youth baseball pitchers     

Taylor Holt 《Journal of sports sciences》2016,34(9):856-861

The purpose of this study was to examine the relationship between dynamic hip rotational range of motion and upper extremity kinematics during baseball pitching. Thirty-one youth baseball pitchers (10.87 ± 0.92 years; 150.03 ± 5.48 cm; 44.83 ± 8.04 kg) participated. A strong correlation was found between stance hip rotation and scapular upward rotation at maximum shoulder external rotation (r = 0.531, P = 0.002) and at ball release (r = 0.536, P = 0.002). No statistically significant correlations were found between dynamic hip rotational range of motion and passive hip range of motion. Hip range of motion deficits can constrain pelvis rotation and limit energy generation in the lower extremities. Shoulder pathomechanics can then develop as greater responsibility is placed on the shoulder to generate the energy lost from the proximal segments, increasing risk of upper extremity injury. Additionally, it appears that passive seated measurements of hip range of motion may not accurately reflect the dynamic range of motion of the hips through the progression of the pitch cycle.  相似文献   

中国教育现代化区域聚类与特征分析   总被引：16，自引：0，他引：16  

叶平  王蕊 《教育研究》2003,(7)

本文采用灰色系统的方法 ,构建两维指标体系 ,对我国各省、直辖市、自治区社会经济和教育现代化水平进行聚类分析 ,初步揭示了各区域教育现代化的不同特征 ,在此基础上 ,提出各区域教育现代化的推进策略 ,为分类指导、分区推进提供实证依据。  相似文献   

一种基于服务质量的网格服务发现机制     

李静 《重庆第二师范学院学报》2007,20(6):54-56

网格服务体系结构的出现对网格服务发现提出了挑战,UDDI上基于关键词和简单分类的服务发现机制已经不能很好满足需要.本文在分析现有相关研究的基础上,提出了基于服务质量的网格服务发现机制,引入服务质量相似度的概念,为网格服务发现提供了一种有效可行的方法.  相似文献   

教学风险初探     

王健康 《湖南第一师范学报》2006,6(4):18-20

20世纪50年代以来,随着风险管理这一新兴管理学科的迅猛发展,其走入教学范畴是自然而然的事情。教学风险是指教学的实际结果与预期结果间的偏差。导致或加剧教学的实际结果与其预期结果之间的偏差的原因或条件,被称为教学风险的风险因素。依据不同的分类标准,可以对教学风险进行不同的分类。当前我国应加强对教学风险的研究与应对工作。  相似文献   

预防学生伤害事故发生的措施     

房兆霞  杜广先 《河北职业技术学院学报》2007,7(2):66-67

在影响学校稳定的众多因素中,学生伤害事故最引人关注。我国在校学生人身伤害事故的频繁发生,给受害学生及其家长带来身体及精神上的极大伤害。为了学生的健康发展,减少和避免学生伤害事故,学校应采取措施积极预防。  相似文献   

Ankle and knee kinetics between strike patterns at common training speeds in competitive male runners     

Daniel Kuhman  Daniel Melcher 《European Journal of Sport Science》2016,16(4):433-440

The purpose of this study was to investigate the interaction of foot strike and common speeds on sagittal plane ankle and knee joint kinetics in competitive rear foot strike (RFS) runners when running with a RFS pattern and an imposed forefoot strike (FFS) pattern. Sixteen competitive habitual male RFS runners ran at two different speeds (i.e. 8 and 6?min?mile^?1) using their habitual RFS and an imposed FFS pattern. A repeated measures analysis of variance was used to assess a potential interaction between strike pattern and speed for selected ground reaction force (GRF) variables and, sagittal plane ankle and knee kinematic and kinetic variables. No foot strike and speed interaction was observed for any of the kinetic variables. Habitual RFS yielded a greater loading rate of the vertical GRF, peak ankle dorsiflexor moment, peak knee extensor moment, peak knee eccentric extensor power, peak dorsiflexion and sagittal plane knee range of motion compared to imposed FFS. Imposed FFS yielded greater maximum vertical GRF, peak ankle plantarflexor moment, peak ankle eccentric plantarflexor power and sagittal plane ankle ROM compared to habitual RFS. Consistent with previous literature, imposed FFS in habitual RFS reduces eccentric knee extensor and ankle dorsiflexor involvement but produce greater eccentric ankle plantarflexor action compared to RFS. These acute differences between strike patterns were independent of running speeds equivalent to typical easy and hard training runs in competitive male runners. Current findings along with previous literature suggest differences in lower extremity kinetics between habitual RFS and imposed FFS running are consistent among a variety of runner populations.  相似文献   

Lower limb alignment characteristics are not associated with running injuries in runners: Prospective cohort study     

Luiz Carlos Hespanhol Junior  Aline Carla Araújo de Carvalho  Leonardo Oliveira Pena Costa 《European Journal of Sport Science》2016,16(8):1137-1144

There is conflicting evidence on the association between lower limb alignment characteristics and the incidence of running-related injury (RRI). Therefore, the primary aim of this study was to investigate the association between lower limb alignment characteristics and the incidence proportion of RRI in a convenience sample of recreational runners. A total of 89 recreational runners were included in this prospective cohort study. These participants had been running for at least six months and were injury-free at baseline. Lower limb alignment measurements were conducted in order to calculate lower limb discrepancy, Q-angle, subtalar angle and plantar index. All participants also answered a baseline and biweekly online surveys about their running routine, history of RRI and newly developed RRI over a period of 12 weeks. The prevalence of previous RRI and the 12-week incidence proportion of new RRI were calculated. Logistic regression analysis was performed to estimate the association between lower limb length discrepancy, Q-angle, subtalar angle and plantar ach index with the incidence proportion of RRI. The prevalence of previous RRI was 55.1% (n?=?49). The 12-week incidence proportion of new RRI was 27.0% (n?=?24). Muscle injuries and tendinopathies were the main types of RRI identified. The lower leg and the knee were the main anatomical regions affected. We did not find significant associations between lower limb length discrepancy, Q-angle, subtalar angle and plantar arch index and injury occurrence.  相似文献   

如何建立城镇国土基础地理信息系统     

岳瑞堂  于守波 《鸡西大学学报》2003,3(3):77-77,79

阐述了城镇国土基础地理信息系统的设计内容、总体设计的基本原则、功能、分类与编码以及系统运行的环境和特点，对合理规划、开发和利用国土资源，促进国民经济的可持续发展，改善全球环境有着十分重要的意义。  相似文献   

《家庭暴力防治法》立法问题研究     

邹艳晖 《鸡西大学学报》2007,7(1):57-59

目前,我国家庭暴力问题令人担忧,其中重要原因之一是我国现行法律在规制家庭暴力方面存在不足。应制定专门《家庭暴力防治法》,明确《家庭暴力防治法》在法律体系中的地位,明确家庭暴力举证的特殊要求,明确相关机构干预家庭暴力的责任,明确规定施暴者的法律责任,在立法时并对弱势群体有所倾斜。  相似文献