体力活动、静坐行为与学前儿童体质健康的关系     

常振亚  王树明  张晓辉 《学前教育研究》2020,(3):42-56

体力活动和静坐行为是影响儿童早期体质健康的重要因素。本研究以152名学前儿童为被试,使用三轴加速度计测量体力活动和静坐行为,使用儿童型人体成分分析仪测量身体成分,使用《国民体质测定标准(幼儿部分)》测评身体素质,使用相关分析、多元回归分析和等时替代回归分析对它们之间的关系进行探究,结果发现在控制了性别、年龄、城乡、佩戴时间和静坐行为等因素后,中高强度体力活动尤其是高强度体力活动对去脂体重指数和身体素质(十米折返跑、立定跳远、双脚连续跳、走平衡木)依然具有显著影响;高强度体力活动替代其他强度体力活动或不同强度体力活动替代静坐行为后,去脂体重指数均有所提升;身体素质变化仅在高强度体力活动替代其他强度体力活动和静坐行为时具有方向一致性和显著性。家长和教师应充分重视中高强度体力活动尤其是高强度体力活动与学前儿童体质健康的紧密联系,促进学前儿童静坐行为和低强度体力活动向中高强度体力活动适度转化,以提升学前儿童下肢肌肉力量素质和灵敏素质等方面的体质健康水平。  相似文献   

‘I would say nine times out of 10 they come to the LSA rather than the teacher’. The role of teaching assistants in supporting children's mental health     

Ida Conboy 《Support for Learning》2021,36(3):380-399

This research explored how seven primary school teaching assistants (TAs) experienced their role in supporting children's mental health. Interviews were analysed using Interpretative Phenomenological Analysis (IPA). The participants believed that they supported children's mental health and particularly referenced the close relationships that they formed with children. Throughout their accounts of supporting children, the TAs referenced helpful factors (e.g. support from other staff) and challenges (e.g. hierarchy) within the school system. Supporting children’s mental health was an emotional experience for the TAs; they discussed the rewarding element, however, the topic also elicited fear. The findings provide several implications for school staff and external professionals about how TAs can be supported in their role. These include involving TAs in training opportunities, providing TAs with supervision, considering communication systems in schools, and introducing a mental health policy.  相似文献   

Area-socioeconomic disparities in mental health service use among children involved in the child welfare system     

《Child abuse & neglect》2018

Relying on data from a nationally representative sample of youth involved in the child welfare system (CWS) in 1999–2000 (the National Survey of Child and Adolescent Well-Being, Cohort 1) and 2008–2009 (Cohort 2), this study implemented a diverse set of disparity indicators to estimate area-socioeconomic disparities in mental health (MH) services use and changes in area-socioeconomic disparities between the two cohorts. Our study found that there are area-socioeconomic disparities in MH service use, indicating that the rates of MH service use among youth referred to the CWS differ by area-socioeconomic positions defined by county-level poverty rates. We also found that area-socioeconomic disparities increased over time. However, the magnitude of the increase varied widely across disparity measures, suggesting that there are different conclusions about the trend and magnitude of area-socioeconomic disparities, depending upon which disparity measures are implemented. A greater understanding of the methodological differences among disparity measures is warranted, which will in turn impact how interventions are designed to reduce socioeconomic disparities among children in the CWS.  相似文献   

Childhood maltreatment: A predictor of mental health problems among adolescents and young adults     

《Child abuse & neglect》2018

Child maltreatment is a risk factor for detrimental effects on mental health that may extend to adulthood. This study aimed to examine the association between exposure to childhood maltreatment, socio-demographic factors, and students’ mental health status and self-esteem. A cross-sectional study enrolled a representative sample of 1270 students from Kuwait University. An anonymous self-administered questionnaire included students’ socio-demographic characteristics, history of exposure to childhood physical and/or emotional maltreatment, DASS-21 to assess mental health status, and Rosenberg self-esteem scale was used. Chi-square test and binary logistic regression models were applied. The study found that among participants, 49.6%(95% CI: 64.8%–52.4%), 63.0%(95% CI: 60.3%–65.7%), and 43.8%(95% CI: 41.1%–46.6%) reported having depression, anxiety, and stress respectively. Moreover, 22.5%(95% CI: 20.1%–24.8%) and 18.6%(95% CI:16.5%–20.9%) reported childhood physical and emotional maltreatment, respectively; while 12.7% reported both. Multivariate analysis revealed that experiencing childhood physical and emotional maltreatment were independent contributors to reporting depression and anxiety; while exposure to only emotional maltreatment contributed to reporting stress. Gender, GPA, childhood enrollment in private/public schools, number of close friends, were other contributors to mental health problems. Participants’ median score of self-esteem was 17/30, and only childhood emotional maltreatment was a significant predictor to low self-esteem after adjustment for other confounders. Mental health problems, and experiencing childhood physical and emotional maltreatment were prevalent relatively high among university students. Childhood corporal and emotional maltreatment were independent predictors to adolescents and young adults’ mental health problems. Experiencing childhood emotional maltreatment predicted low self-esteem. Further research to assess culture factors associated with childhood maltreatment is recommended.  相似文献   

视力康复背景下体育锻炼与儿童动态视力关系研究及启示          下载免费PDF全文

潘景玲  蔡赓  殷荣宾  孙雷  王国祥 《体育科研》2019,(1):90-95

目的：探讨动态视力在不同类型体育项目间的发展特征，为体育锻炼改善视力的应用研究提供依据。方法：选取6~10岁无专门体育训练经历的在校学生和参加足球、乒乓球、跆拳道、空手道、游泳、体操等项目的俱乐部或体校学生，共603名。使用动态视力检测仪和标准对数视力灯箱测量动态视力和静态视力。计算动静比（动态视力/静态视力），并将其作为衡量动态视力发展水平的指标。结果：6~7岁是动态视力发展的敏感期（P＜0.05），8岁、10岁男性儿童的动静比高于女性儿童，且差异有统计学意义（P＜0.05）。校外体育练习组的动静比高于普通在校学生组（P＜0.05），开放性运动项目的动静比高于闭锁性运动项目（P＜0.05）。结论：参加体育锻炼对动态视力的发展有积极的影响，且不同运动项目的影响效果不同。  相似文献   

不同负荷运动训练对大鼠骨骼肌线粒体三羧酸循环的影响及其机制研究     

李洁  杨静  赵丽丽 《武汉体育学院学报》2019,53(5):88-94

目的：探讨不同负荷运动训练对大鼠骨骼肌线粒体三羧酸循环的影响及其机制。方法：将雄性Wistar大鼠50只随机均分为5组：安静对照组（C）、低负荷运动训练组（LT）、中等负荷运动训练组（MT）、高负荷运动训练组（HT）和极高负荷运动训练组（ST），每组10只。各运动组分别进行6周的跑台运动训练。训练方案结束后，取腓肠肌样本，提取线粒体，测定线粒体柠檬酸合成酶（CS）、异柠檬酸脱氢酶（ICD）和α-酮戊二酸脱氢酶（α-KGDHC）活性；线粒体Ga²⁺含量、胞浆NADH、NAD⁺、ATP和ADP含量，以及ICD mRNA转录水平。结果：（1）不同负荷运动训练组线粒体CS、ICD和α-KGDHC的活性均显著高于安静对照组（P < 0.01），且CS和ICD活性由高到低顺序均为：MT组 > HT组 > ST组 > LT组 > C组，α-KGDHC活性由高到低顺序为：HT组 > MT组 > ST组 > LT组 > C组。（2）不同负荷运动训练组线粒体Ca²⁺ 含量均显著高于安静对照组（P < 0.01），其含量由高到低顺序为：MT组 > HT组 > ST组 > LT组 > C组；胞浆NADH/NAD⁺和ATP/ADP的比值均显著低于安静对照组（P < 0.01），其比值由低到高顺序为：MT组 < ST组 < HT组 < LT组 < C组。（3）不同负荷运动训练组ICD mRNA转录水平均高于安静对照组（P < 0.01），其水平由高到低顺序为： MT组 > HT组 > ST组 > LT组 > C组。结论：低负荷、中等负荷、高负荷及极高负荷运动训练均可提高大鼠骨骼肌线粒体三羧酸循环功能，且中等负荷运动训练效果最佳。其机制与胞浆NADH/NAD⁺和ATP/ADP比值、线粒体摄钙能力及限速酶基因的表达有关。  相似文献   

The Impact of Receivers’ Nationality and Cultural Orientation on the Effects of Fear Appeals in Health Communication     

Carel Jansen  Geke van der Kroef 《Journal of Intercultural Communication Research》2019,48(1):72-90

Participants from the Netherlands (n = 52), China (n = 50), and South Africa (n = 166) either read a self-targeted or a family-targeted fear appeal message about chlamydia. Seven aspects of individual cultural orientation were measured, and six effects of the different messages. Interactions between nationality and target of threat were found on perceived severity, perceived susceptibility, and danger control. Only for perceived susceptibility, a difference in cultural orientation partly explained this interaction. The outcomes add to the doubts about claims in earlier literature about the relevance of receivers’ nationality and cultural orientation for developing a fear appeal message.  相似文献   

回顾与展望：关于我国青少年体育健康公共服务的述评与研究*     

高天宇  李佳薇 《广州体育学院学报》2019,(5):7-13

青少年体育健康问题上升国家战略高度。“青少年体育健康公共服务”是一个在青少年体育领域内，由“体育健康”和“体育公共服务”综合而成的全新概念，学界还未深入探讨与挖掘。充分结合“健康管理”理论，基于对“青少年体育健康”和“体育公共服务”相关研究文献的回顾，归纳“青少年体育健康公共服务”内涵与特征。概念特征包括：“学校体育”“青少年体育俱乐部”是核心供给主体；健康医疗等事业、非营利性机构是重要支撑；始终强调青少年受众被动接受“体育健康促进”与主动应用“体育健康素养”相结合；供给产品具有“纯公共物品”性质，公共财政补贴是解决公共服务资源配置矛盾关键方式；“互联网虚拟社区”是实现多元主体协同供给的技术基础与激励条件。最后，基于概念属性展望“青少年体育健康公共服务”的未来研究趋势，包括：开发“运动干预”“心理调试”和“营养膳食”三维评估指标体系；完善“学校”“社区”“医疗部门”“健康管理机构”和“家庭”的协同供给机制；深度开发“青少年体育俱乐部”和“青少年联赛体系”营造“体育健康素养培育”空间；实现“青少年体育健康公共服务”均等化局限，以及加快“青少年体育健康公共服务”互联网平台建设，破解公共服务资源闲置问题。  相似文献   

Acute effects of different warm-up protocols on highly skilled golfers’ drive performance     

Ben L. Langdown  Jack E.T. Wells  Sean Graham  Matt W. Bridge 《Journal of sports sciences》2019,37(6):656-664

Previous research has highlighted the positive effect that different warm-up protocols have on golf performance (e.g. Sorbie et al., 2016; Tilley & Macfarlane, 2012) with the design of warm-ups and programmes targeting and improving golf performance through the activation and development of specific muscle groups. This study aimed to examine the acute effects of two warm-up protocols on golf drive performance in comparison to a control condition. Using a randomised counterbalanced design over three testing sessions, twenty-three highly skilled golfers completed the control, dynamic and resistance-band warm-up conditions. Following each condition, a GC2 launch monitor was used to record ball velocity and other launch parameters of ten shots hit with the participants’ own driver. A repeated-measures ANOVA found significant increases in ball velocity (η_p² = .217) between the control and both the dynamic and resistance-band warm-up conditions but no difference between these latter two, and a reduction in launch angle between control and dynamic conditions. The use of either a dynamic stretching or resistance-band warm-up can have acute benefits on ball velocity but golfers should liaise with a PGA Professional golf coach to effectively integrate this into their golf driving performance.  相似文献   

Gut microbiota and obesity:Impact of antibiotics and prebiotics and potential for musculoskeletal health     

Teja Klancic  Raylene A.Reimer 《运动与健康科学(英文)》2020,9(2):110-118,197

Obesity is a complex disease with multiple contributing factors.One of the most intensely studied factors during the past decade has been the gut microbiota,which is the community of all microbes in the intestinal tract.The gut microbiota,via energy extraction,inflammation,and other actions,is now recognized as an important player in the pathogenesis of obesity.Dysbiosis,or an imbalance in the microbial community,can initiate a cascade of metabolic disturbances in the host.Early life is a particularly important period for the development of the gut microbiota,and perturbations such as with antibiotic exposure can have long-lasting consequences for host health.In early life and throughout the life span,diet is one of the most important factors that shape the gut microbiota.Although diets high in fat and sugar have been shown to contribute to dysbiosis and disease,dietary fiber is recognized as an important fermentative fuel for the gut microbiota and results in the production of short-chain fatty acids that can act as signaling molecules in the host.One particular type of fiber,prebiotic fiber,contributes to changes in the gut microbiota,the most notable of which is an increase in the abundance of Bifidobacterium.This review highlights our current understanding of the role of gut microbiota in obesity development and the ways in which manipulating the microbiota through dietary means,specifically prebiotics,could contribute to improved health in the host,including musculo skeletal health.  相似文献