Importance analysis

  • 文章类型: Journal Article
    处置非法干扰事件对于推进航空安全至关重要。有效的应急处置需要一个全面的方法,包括航空公司的观点,机场,和乘客。在这种情况下,处理过程的每个组件都可能随机失败。这项研究的目的是优化紧急处置决策,以提高民航业务的效率,减少事故,和更低的成本。鉴于非法干扰事件的动态复杂性,构建了由26个节点组成的动态故障树,分析了应急处置过程。要探索每个事件的关系和优先级,将动态故障树转化为动态贝叶斯网络。根据历史统计数据,从三个方面进行了仿真分析:后验概率,灵敏度,和重要性。仿真结果表明,客舱非法干扰事件中的前三个关键节点是客舱结构损坏,航空公司培训不足,“和”不及时的机场警察接管破坏性乘客。“进一步的分析表明,(1)大多数关键节点与航空公司相关联。(2)关键节点的决策原理和路径可以清晰地观察和确定优先级。(3)除了航空公司,机场等其他实体可以实施有针对性的应急处置措施。通过定量分析和模拟,本研究为参与团体进行动态应急处置提供决策指导,从而加强民航安全。
    Disposal of unlawful interference incidents is essential for is crucial for the advancement of aviation security. Effective emergency disposal requires a comprehensive approach that includes the perspectives of airlines, airports, and passengers. In this context, each component of the disposal process can fail randomly. The objective of this research is to optimize emergency disposal decisions to enhance the efficiency of civil aviation operations, reduce accidents, and lower costs. Given the dynamic complexity of unlawful interference incidents, a dynamic fault tree consisting of 26 nodes was constructed to analyze the emergency disposal process. To explore the relationships and priorities of each event, the Dynamic Fault Tree is converted into a dynamic Bayesian network. Based on historical statistical data, simulation analysis is conducted in three aspects: posterior probability, sensitivity, and importance. Simulation results reveal that the top three critical nodes in cabin unlawful interference incidents are \"structural damage to the cabin,\" \"inadequate training by airlines,\" and \"untimely airport police takeover of disruptive passengers.\" Further analysis shows that (1) most of the critical nodes are associated with airlines. (2) The decision-making rationale and pathways of the critical nodes can be clearly observed and prioritized. (3) Besides airlines, other entities such as airports can implement targeted emergency disposal measures. Through quantitative analysis and simulation, this study provides decision-making guidance for participating groups on dynamic emergency disposal, thereby enhancing civil aviation security.
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  • 文章类型: Journal Article
    历史街区是城市空间的组成部分,拥有多样化的生态系统,可以为公众提供各种文化服务。城市化和旅游业发展导致历史街区内的生态景观退化,影响可持续发展。将文化生态系统服务(CES)纳入历史街区的环境研究,可以满足人们的精神需求,增强人类的无形利益,促进历史街区生态环境的保护。因此,本研究对福州市四个典型历史街区的CES进行了感性量化研究,通过Python抓取在线评论数据,使用Biterm主题模型(BTM)挖掘其潜在主题,结合专家咨询,对历史街区CES指标进行了提取和分类;同时,借助两种方法,进一步探索了历史街区的CES满意度,即,情绪分析和重要性-绩效分析(IPA),并总结了公众对CES历史街区的看法。研究结果表明:(1)城市历史街区公众对CES的感知维度包括文化遗产,休闲旅游,审美的享受,精神实现,灵感,科学教育六项指标,其中休闲旅游最容易被公众感知,但满意度不高;(2)公众对福州历史街区CES的积极情绪感知大于消极情绪,积极情绪占80.61%;(3)公众对福州历史街区CES的总体满意度较高,根据IPA的最终分析结果,福州四个历史街区分别提出完善意见。基于大数据,探索福州历史街区CES的公众感知特征,以促进其可持续发展,这对保护历史街区的生态环境和提高文化服务质量具有重要意义。
    Historic districts are integral components of urban space, possessing diverse ecosystems that can offer various cultural services to the public. Urbanization and tourism development have led to the degradation of the ecological landscapes within historic districts, impacting sustainable development. Incorporating Cultural Ecosystem Services (CES) into the environmental research of historic districts can meet people\'s spiritual needs, enhance intangible benefits for humanity, and promote the conservation of the ecological environment within historic districts. Therefore, this study conducted perceptual quantification research on CES in four typical historic districts in Fuzhou City, crawling the online comment data through Python, mined its potential themes using Biterm Topic Model (BTM), and extracted and categorized the indicators of CES of historic districts by combining with expert consultation; meanwhile, the satisfaction of CES of historic districts is further explored with the help of two methods, namely, sentiment analysis and Importance-Performance analysis (IPA), and summarized the public perception of CES of historic districts. The results of the study show that: (1) the dimensions of public perception of CES in urban historic districts include Cultural Heritage, Leisure Tourism, Aesthetic Enjoyment, Spiritual Fulfillment, Inspiration, and Science Education six indicators, of which Leisure Tourism is most easily perceived by the public, but its satisfaction is not high; (2) the public\'s perception of positive emotions towards the CES of historic districts in Fuzhou is greater than negative emotions, with positive emotions accounting for 80.61%; (3) the public\'s overall satisfaction with the CES of Fuzhou\'s historic districts is high, and according to the final analysis results of the IPA, the four historic districts of Fuzhou are respectively proposed to improve the opinions. Based on big data, this study explores the public perception characteristics of CES in Fuzhou historic districts to promote its sustainable development and improve public well-being, which is of great significance to protecting the ecological environment of historic districts and improving the quality of cultural services.
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  • 文章类型: Journal Article
    人为影响显着改变了整个亚洲河流生态系统的水化学特性和物质流,可能占全球排放量的40-50%。尽管亚洲河流受到普遍影响,缺乏调查它们与二氧化碳(CO2)排放的相关性的研究。在这项研究中,我们使用基于碳酸盐平衡的模型(pCO2SYS)计算了CO2分压(pCO2),并根据2013-2021年恒河91个站点的历史记录检查了其与水化学参数的相关性。调查揭示了整个恒河中pCO2的巨大空间异质性。pCO2浓度从1321.76μatm变化,1130.98μatm,上部为1174.33μatm,中间,和较低的拉伸,分别,平均值为1185.29μatm。有趣的是,与中段和下段相比,上段拉伸表现出升高的平均pCO2和FCO2水平(CO2逸度:3.63gm2d-1),强调水化学和CO2动力学之间复杂的相互作用。在二氧化碳波动的背景下,上段的硝酸盐浓度以及中段和下段的生物需氧量(BOD)和溶解氧(DO)水平正在成为关键的解释因素。此外,回归树(RT)和重要性分析指出生化需氧量(BOD)是影响恒河pCO2变化的最重要因素(n=91)。还观察到BOD和FCO2之间存在强烈的负相关。这两个参数的不同纵向模式可能会导致BOD和pCO2之间的负相关。因此,有必要进行全面的研究,以破译管理这种关系的潜在机制。目前的见解有助于理解恒河中二氧化碳排放的潜力,并促进河流的恢复和管理。我们的发现强调了将南亚河流纳入全球碳预算评估的重要性。
    Anthropogenic influences significantly modify the hydrochemical properties and material flow in riverine ecosystems across Asia, potentially accounting for 40-50% of global emissions. Despite the pervasive impact on Asian rivers, there is a paucity of studies investigating their correlation with carbon dioxide (CO2) emissions. In this study, we computed the partial pressure of CO2 (pCO2) using the carbonate equilibria-based model (pCO2SYS) and examined its correlation with hydrochemical parameters from historical records at 91 stations spanning 2013-2021 in the Ganga River. The investigation unveiled substantial spatial heterogeneity in the pCO2 across the Ganga River. The pCO2 concentration varied from 1321.76 μatm, 1130.98 μatm, and 1174.33 μatm in the upper, middle, and lower stretch, respectively, with a mean of 1185.29 μatm. Interestingly, the upper stretch exhibited elevated mean pCO2 and FCO2 levels (fugacity of CO2: 3.63 gm2d-1) compared to the middle and lower stretch, underscoring the intricate interplay between hydrochemistry and CO2 dynamics. In the context of pCO2 fluctuations, nitrate concentrations in the upper segment and levels of biological oxygen demand (BOD) and dissolved oxygen (DO) in the middle and lower segments are emerging as crucial explanatory factors. Furthermore, regression tree (RT) and importance analyses pinpointed biochemical oxygen demand (BOD) as the paramount factor influencing pCO2 variations across the Ganga River (n = 91). A robust negative correlation between BOD and FCO2 was also observed. The distinct longitudinal patterns of both parameters may induce a negative correlation between BOD and pCO2. Therefore, comprehensive studies are necessitated to decipher the underlying mechanisms governing this relationship. The present insights are instrumental in comprehending the potential of CO2 emissions in the Ganga River and facilitating riverine restoration and management. Our findings underscore the significance of incorporating South Asian rivers in the evaluation of the global carbon budget.
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  • 文章类型: Journal Article
    这项研究的主要目的是提出能够识别使用经典Petri网构建的生物系统模型中的重要反应和子过程的算法。这些解决方案允许执行两种分析方法:用于识别对模型功能至关重要的单个反应的重要性分析,以及用于找到必要子过程的发生分析。为了演示这些方法的实用性,对一个示例模型进行了分析。在这种情况下,这是一个与DNA损伤反应机制有关的模型。值得注意的是,所提出的分析可以应用于使用Petri网形式主义表示的任何生物现象。提出的分析方法代表了经典的基于Petri网的分析的扩展。它们的效用在于它们具有增强我们对正在研究的生物学现象的理解的潜力。此外,它们可以导致更有效的医学疗法的发展,因为它们可以帮助识别药物的潜在分子靶标。
    The primary aim of this research was to propose algorithms enabling the identification of significant reactions and subprocesses within models of biological systems constructed using classical Petri nets. These solutions allow to performance of two analysis methods: an importance analysis for identifying individual reactions critical to the functioning of the model and an occurrence analysis for finding essential subprocesses. To demonstrate the utility of these methods, analyses of an example model have been performed. In this case, it was a model related to the DNA damage response mechanism. It is worth noting that the proposed analyses can be applied to any biological phenomenon represented using the Petri net formalism. The presented analysis methods represent an extension of classical Petri net-based analyses. Their utility lies in their potential to enhance our comprehension of the biological phenomena under investigation. Furthermore, they can lead to the development of more effective medical therapies, as they can aid in the identification of potential molecular targets for drugs.
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  • 文章类型: Journal Article
    文献显示,基于脂肪组织过量的伴随存在,肌肉减少症通常与不同的表型一起发生(即,肌肉减少性肥胖,SO),或骨量减少/骨质疏松症(骨量减少症,操作系统),或者两个条件的组合,所谓的骨营养不良性肥胖(OSO)。这项研究旨在评估肌肉减少症表型的患病率(SO,操作系统,OSO),他们的相关危险因素及其对居住在意大利北部的门诊病人和住院病人的健康影响。年龄≥18岁的男性和女性受试者被纳入研究。收集血液样本以测量目标血液制造者。全面的人体测量学临床评估(身高,体重,身体质量指数,BMI和双能X线吸收法,DXA)进行测量,骨头,脂肪,和肌肉状态。共有1510人参加了这项研究(女性,n=1100;72.85%)。肌肉减少症是最普遍的表型(17%),其次是骨量减少症(14.7%)和少肌症性肥胖。只有1.9%的样品受到OSO的影响。根据Logistic回归分析,肌肉减少症与年龄有关,红细胞沉降率(ESR),C反应蛋白(CRP)(阳性)和BMI,铁(Fe),总胆固醇,白蛋白(%),白蛋白(g),和γ蛋白(负)。肌肉减少性肥胖与年龄有关,铁蛋白,ESR,CRP(正)和BMI,Fe,和白蛋白(%)(负)。骨质减少症与年龄有关,ESR(正)和BMI,总胆固醇,白蛋白(%),白蛋白(g),和Ca(负)。骨性肥胖与血糖和γ-谷氨酰转移酶(gGT)(正)相关。根据随机森林分析,较高的BMI是肌少症最重要的保护因素,用于减少肌少症的肥胖(与铁一起)和骨减少症(与白蛋白一起)。此外,骨量减少性肥胖与GgT和血糖呈正相关。获得这些信息的可能性,尤其是在年轻人口中,可以帮助防止这类疾病的发作和最适合病人的需要,根据精准医学的方法。
    The literature shows how sarcopenia often occurs along with different phenotypes based either on the concomitant presence of adipose tissue excess (i.e., sarcopenic obesity, SO), or osteopenia/osteoporosis (osteosarcopenia, OS), or the combination of the two conditions, so-called osteosarcopenic obesity (OSO). This research aimed to assess the prevalence of sarcopenia phenotypes (SO, OS, OSO), their associated risk factors and their health impact in a population of out- and inpatients living in the North of Italy. Male and female subjects aged ≥18 years were enrolled for the study. A blood sample was collected to measure targeted blood makers. A comprehensive anthropometric clinical assessment (height, weight, Body Mass Index, BMI and Dual Energy X-ray Absorptiometry, DXA) was performed to measure ponderal, bone, fat, and muscle status. A total of 1510 individuals participated to the study (females, n = 1100; 72.85%). Sarcopenia was the most prevalent phenotype (17%), followed by osteosarcopenia (14.7%) and sarcopenic obesity. Only 1.9% of the sample was affected by OSO. According to logistic regression analysis, sarcopenia was associated with age, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) (positively) and BMI, Iron (Fe), Total Cholesterol, albumin (%), albumin (g), and gamma proteins (negatively). Sarcopenic obesity was associated with age, ferritin, ESR, CRP (positively) and BMI, Fe, and albumin (%) (negatively). Osteosarcopenia was associated with age, ESR (positively) and BMI, Total Cholesterol, albumin (%), albumin (g), and Ca (negatively). Osteosarcopenic obesity was associated with glycemia and gamma-glutamyl transferase (gGT) (positively). According to random forest analysis, a higher BMI was the most important protective factor for sarcopenia, for sarcopenic obesity (along with Iron) and for osteosarcopenia (along with albumin). Moreover, osteosarcopenic obesity was positively associated with GgT and glycaemia. The possibility of gaining such information, especially in the younger population, could help to prevent the onset of such diseases and best fit the patient\'s needs, according to a precision-medicine approach.
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  • 文章类型: Journal Article
    本研究使用涵盖2005年至2019年中国228个城市的数据集,探讨了空气质量与房价之间的非线性关系,并设计了一种结合工具变量和机器学习的策略来解决内生性问题。传统模型和机器学习模型都发现空气污染对房价的影响正在逐渐减弱。空气污染对房价的负面影响随着空气污染程度的加剧而降低。在中国东部和土地资源约束较少,人口较多的城市中,这种特征更为明显。机理分析还表明,空气污染会影响居民感知的空气质量和产业结构,空气质量与房价之间的非线性关系。进一步的Shapley附加计划(SHAP)评估了空气质量在确定房价方面的重要性,并发现空气质量的贡献超过了教育和医疗资源。空气质量的贡献也显示出明显的地区差异,并且近年来变得越来越重要。研究结果完善了与空气质量改善相关的效益评估准确性。
    Using a dataset encompassing 228 cities in China spanning from 2005 to 2019, this study explores the nonlinear relationship between air quality and housing prices and devises a strategy that incorporates the instrumental variable and machine learning to address the endogeneity issue. Both traditional models and machine learning models find air pollution affects housing prices in a diminishing manner. The negative impact of air pollution on housing prices decreases when the degree of air pollution intensifies. Such a characteristic is more pronounced in Eastern China and cities with fewer land resource constraints and larger populations. Mechanism analysis also reveals that air pollution could affect residents\' perceived air quality and the industrial structure, further contributing to the nonlinear relationship between air quality and housing prices. The further SHapley Additive exPlanations (SHAP) evaluates the importance of air quality in determining housing prices and finds that air quality\'s contribution outweighs educational and medical resources. The contribution of air quality also shows a distinct regional disparity and has become increasingly important in recent years. The findings refine the benefit assessment accuracy related to air quality improvement.
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  • 文章类型: Journal Article
    背景:机器学习已越来越多地用于医疗领域,包括管理接受血液透析的患者。随机森林分类器是一种机器学习方法,可以在各种疾病的数据分析中产生高准确性和可解释性。我们试图应用机器学习来调整干重,接受血液透析的患者的适当容量状态,这需要一个复杂的决策过程,考虑多个指标和病人的身体状况。
    方法:从电子病历系统收集了2018年7月至2020年4月在日本单一透析中心接受血液透析的314名亚洲患者的所有医疗数据和69,375份透析记录。使用随机森林分类器,我们建立了模型来预测每次透析时调整干重的概率.
    结果:用于向上和向下调整干重的模型的受试者工作特征曲线下面积分别为0.70和0.74。随着时间的推移,干重向上调整的平均概率在实际变化周围有一个尖锐的峰值,而干重向下调整的平均概率形成一个逐渐的峰值。特征重要性分析显示,中位血压下降是向上调整干重的有力预测因子。相比之下,血清C反应蛋白水平升高和低蛋白血症是下调干重的重要指标。
    结论:随机森林分类器应提供有用的指导,以相对准确地预测干重的最佳变化,并且可能在临床实践中有用。
    Machine Learning has been increasingly used in the medical field, including managing patients undergoing hemodialysis. The random forest classifier is a Machine Learning method that can generate high accuracy and interpretability in the data analysis of various diseases. We attempted to apply Machine Learning to adjust dry weight, the appropriate volume status of patients undergoing hemodialysis, which requires a complex decision-making process considering multiple indicators and the patient\'s physical conditions.
    All medical data and 69,375 dialysis records of 314 Asian patients undergoing hemodialysis at a single dialysis center in Japan between July 2018 and April 2020 were collected from the electronic medical record system. Using the random forest classifier, we developed models to predict the probabilities of adjusting the dry weight at each dialysis session.
    The areas under the receiver-operating-characteristic curves of the models for adjusting the dry weight upward and downward were 0.70 and 0.74, respectively. The average probability of upward adjustment of the dry weight had sharp a peak around the actual change over time, while the average probability of downward adjustment of the dry weight formed a gradual peak. Feature importance analysis revealed that median blood pressure decline was a strong predictor for adjusting the dry weight upward. In contrast, elevated serum levels of C-reactive protein and hypoalbuminemia were important indicators for adjusting the dry weight downward.
    The random forest classifier should provide a helpful guide to predict the optimal changes to the dry weight with relative accuracy and may be useful in clinical practice.
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  • 文章类型: Journal Article
    旅游业参与者的结构正在发生重大变化。由于社会的老龄化,旅游业必须应对老年人日益增长的旅游活动。我们研究的主要目的是认识到来自波兰选定地区的高级游客的需求,考虑到他们的健康和财务状况以及他们的身体活动。该研究表明,如何将积极老龄化的假设知识与高级游客对旅游和积极休闲的实际看法相结合。另一个目标是确定老年人放弃旅游业的原因,并比较波兰选定地区的老年人和其他欧洲国家的老年人不参加旅游业的原因。根据欧盟统计局的数据,我们确定了65岁以上不参加旅游的人的最常见原因。2020年,我们调查了老年人。样本的受访者被选中为65岁及以上。为了比较国家由于排斥和不参与老年人旅游,使用结果分类。为了分析波兰老年人的旅游行为,我们使用了对应分析。如分析65岁及以上欧洲人不参加旅游的原因所示,在大多数国家,财务和健康原因在2016年和2019年排名第一或第二。在对波兰老年人的调查中,除不参与旅游的经济原因外,另一个障碍是外国旅游的语言障碍。对体育活动和游客活动的分析表明,不参与旅游与体育活动少有关。妇女报告说,她们对自己的经济独立感到满意,并经常利用短期旅游的机会。那些完全或大部分参与组织旅行的人也愿意在下一次旅行中改变他们的位置。
    Significant changes are taking place in the structure of tourism participants. Due to the ageing of societies, the tourism sector has to respond to the increasing tourist activity of seniors. The main aim of our research was the recognition of the needs of senior tourists from selected regions of Poland, considering their health and financial situation as well as their physical activity. The study shows how to combine the knowledge of assumptions of active ageing with the actual views of senior tourists on tourism and active leisure. An additional objective was to determine the reasons why seniors gave up tourism and to compare the reasons why seniors from selected regions of Poland and seniors from other European countries did not participate in tourism. Based on Eurostat data, we identify the most common reasons for people not participating in tourism who are over 65 years of age. In 2020, we surveyed seniors. The respondents for the sample were selected as 65 years and older. In order to compare countries due to exclusion and non-participation of seniors in tourism, the results classification was used. To analyse the touristic behaviours of Polish seniors, we used correspondence analysis. As indicated by analysing the reasons for the non-participation of Europeans aged 65 and over in tourism, in most countries, financial and health reasons are ranked first or second in 2016 and 2019. In a survey of Polish seniors, except for the financial reasons responsible for non-participation in tourism, an additional obstacle was the language barrier in foreign tourism. The analysis of physical and tourist activity showed that non-participation in tourism is associated with low physical activity. Women reported that they were satisfied with their financial independence and most often used the opportunity of short-term tourism. The people who are fully or largely involved in organising their trips also willingly change their locations during their next travels.
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  • 文章类型: Journal Article
    这项研究旨在评估和监测全面的两阶段多土壤分层(TS-MSL)工厂在去除生活污水中的粪便污染方面的功效。被调查的TS-MSL工厂由两个串联的单元组成,一个具有垂直流态(VF-MSL),另一个具有水平流态(HF-MSL)。此外,这项研究试图了解线性模型(LM)和K最近邻(KNN)模型是否可用于预测TS-MSL系统中总大肠杆菌(TC)去除量。24个月来,监测TS-MSL系统,在每个隔间的入口和出口处记录两个月的测量结果。得到的结果表明,去除85%的COD,67%的TP,27%的TN,和3个对数单位的大肠杆菌,具有良好的系统稳定性。因此,废水符合摩洛哥水质规范,可在绿地灌溉中重复使用。此外,与LM相比,KNN模型(R2=0.988)可以被认为是预测TS-MSL系统中TC去除的有效方法。最后,敏感性分析表明,进水中的TC和溶解氧水平是预测TS-MSL系统中TC去除的最有影响的参数。
    This study aims to evaluate and monitor the efficacy of a full-scale two-stage multi-soil-layering (TS-MSL) plant in removing fecal contamination from domestic wastewater. The TS-MSL plant under investigation consisted of two units in series, one with a vertical flow regime (VF-MSL) and the other with a horizontal flow regime (HF-MSL). Furthermore, this study attempts to see whether linear model (LM) and K-nearest neighbor (KNN) model can be used to predict total coliform (TC) removal in the TS-MSL system. For 24 months, the TS-MSL system was monitored, with bimonthly measurements recorded at the inlet and outlet of each compartment. Obtained results show removal of 85% of COD, 67% of TP, 27% of TN, and 3 log units of coliforms with good system stability. Thus, the effluent meets the Moroccan water quality code for reuse in the irrigation of green spaces. In addition, as compared to LM, the KNN model (R2 = 0.988) may be considered as an effective method for predicting TC removal in the TS-MSL system. Finally, sensitivity analysis has shown that TC and dissolved oxygen level in the influent were the most influential parameters for predicting TC removal in the TS-MSL system.
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  • 文章类型: Journal Article
    大量研究已经使用肌电图(EMG)来测量青少年特发性脊柱侧凸的椎旁肌活动。然而,对这些肌肉特征的调查非常有限,尽管这些信息对于评估各种类型的干预措施的有效性很有用,如脊柱侧弯特定的练习。这项横断面研究的目的是调查肌肉活动不平衡的参与者的特征以及13个特征(身体特征和EMG信号值)之间的关系。共有106名参与者(69%患有脊柱侧凸;78%为女性;9-30岁)参与了这项研究。获得他们的基本简介信息,和上斜方肌的表面肌电图信号,背阔肌,在静态(坐姿)和动态(俯卧位)条件下测试竖脊肌(胸椎和竖脊肌)腰部肌肉。然后,使用了两种机器学习方法和重要性分析。这项研究中约有30%的参与者发现,在坐着时平衡其脊柱旁肌肉活动具有挑战性。最有趣的发现是,除了躯干旋转角度和受试者身高外,竖脊肌(腰椎)组的动态不对称性是脊柱侧凸的重要(重要性第三)预测指标。
    A large number of studies have used electromyography (EMG) to measure the paraspinal muscle activity of adolescents with idiopathic scoliosis. However, investigations on the features of these muscles are very limited even though the information is useful for evaluating the effectiveness of various types of interventions, such as scoliosis-specific exercises. The aim of this cross-sectional study is to investigate the characteristics of participants with imbalanced muscle activity and the relationships among 13 features (physical features and EMG signal value). A total of 106 participants (69% with scoliosis; 78% female; 9-30 years old) are involved in this study. Their basic profile information is obtained, and the surface EMG signals of the upper trapezius, latissimus dorsi, and erector spinae (thoracic and erector spinae) lumbar muscles are tested in the static (sitting) and dynamic (prone extension position) conditions. Then, two machine learning approaches and an importance analysis are used. About 30% of the participants in this study find that balancing their paraspinal muscle activity during sitting is challenging. The most interesting finding is that the dynamic asymmetry of the erector spinae (lumbar) group of muscles is an important (third in importance) predictor of scoliosis aside from the angle of trunk rotation and height of the subject.
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