Fall risk

跌倒风险
  • 文章类型: Journal Article
    从急诊科(ED)出院的老年人面临跌倒和功能下降的风险。智能手机可以在ED出院后远程监控移动性,然而,它们在这方面的应用仍未得到充分探索。
    这项研究旨在评估在ED出院后的11周内,让老年人从仪器化的定时上行(TUG)测试中每周提供加速度计数据的可行性。
    这个单中心,prospective,观察,队列研究招募了60岁及以上的学术性ED患者.参与者将GaitMate应用程序下载到他们的iPhone上,该应用程序在每周11次的家庭TUG测试中记录了加速度计数据。我们测量了对TUG测试完成的依从性,传输的加速度计数据的质量,以及参与者对应用程序可用性和安全性的看法。
    在617名接受治疗的患者中,149(24.1%)同意参加,在这149名参与者中,9(6%)退出。总的来说,参与者完成了55.6%(912/1639)的TUG测试。在31.1%(508/1639)的TUG测试中,数据质量最佳。在3个月的随访中,83.2%(99/119)的受访者认为该应用程序易于使用,和95%(114/120)感到安全在家执行任务。加入的障碍包括需要援助,应用程序的技术问题,和健忘。
    该研究表明,使用智能手机TUG测试来监测ED出院后老年人的活动能力,依从性适中,但可用性和安全性高。TUG测试数据不完整是常见的,反映了老年人在收集高质量纵向流动数据方面的挑战。已识别的障碍突出表明需要改进用户参与度和技术设计。
    UNASSIGNED: Older adults discharged from the emergency department (ED) face elevated risk of falls and functional decline. Smartphones might enable remote monitoring of mobility after ED discharge, yet their application in this context remains underexplored.
    UNASSIGNED: This study aimed to assess the feasibility of having older adults provide weekly accelerometer data from an instrumented Timed Up-and-Go (TUG) test over an 11-week period after ED discharge.
    UNASSIGNED: This single-center, prospective, observational, cohort study recruited patients aged 60 years and older from an academic ED. Participants downloaded the GaitMate app to their iPhones that recorded accelerometer data during 11 weekly at-home TUG tests. We measured adherence to TUG test completion, quality of transmitted accelerometer data, and participants\' perceptions of the app\'s usability and safety.
    UNASSIGNED: Of the 617 approached patients, 149 (24.1%) consented to participate, and of these 149 participants, 9 (6%) dropped out. Overall, participants completed 55.6% (912/1639) of TUG tests. Data quality was optimal in 31.1% (508/1639) of TUG tests. At 3-month follow-up, 83.2% (99/119) of respondents found the app easy to use, and 95% (114/120) felt safe performing the tasks at home. Barriers to adherence included the need for assistance, technical issues with the app, and forgetfulness.
    UNASSIGNED: The study demonstrates moderate adherence yet high usability and safety for the use of smartphone TUG tests to monitor mobility among older adults after ED discharge. Incomplete TUG test data were common, reflecting challenges in the collection of high-quality longitudinal mobility data in older adults. Identified barriers highlight the need for improvements in user engagement and technology design.
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  • 文章类型: Journal Article
    已经开发了几种评估工具来估计患者跌倒的可能性风险。这些措施都没有估计视觉的贡献,前庭,和体感系统下降的风险,尤其是腰椎退行性疾病患者。
    纳入患有神经根病(LD)的退行性腰椎患者和35-70岁无脊柱主诉的健康受试者。在测试之前收集患者报告的结果测量(PROM)。跌倒风险评估使用计算机动态姿势照相术(CDP)完成,计算机控制的平衡机,允许经济锥(CoE)和压力锥(CoP)测量。所有患者均完成了感官组织测试(SOT),包括正常和扰动的稳定性,有和没有视觉线索。
    总共,包括43例脊柱患者和12例健康对照,平均年龄57.8岁,39.5%的女性,平均BMI为29.3kg/m2。与几乎所有子测试中的对照相比,LD患者中几乎所有CoE和大多数CoP维度都较大(p<0.05)。通常在周围和支撑摇摆测试条件下观察到最大尺寸。在LD患者中,ODI和PROMIS疼痛干扰与CoE和CoP测量值呈负相关(p<0.05)。
    在这项前瞻性研究中,使用CDP系统评估身体摇摆是CoE和CoP的功能,发现脊柱患者的身体摇摆升高,特别是当他们经历了越来越多的视觉和前庭刺激。识别平衡障碍的主要驱动因素的能力对于脊柱患者至关重要,并且可能有助于制定针对患者的治疗计划,这可能在未来帮助预防跌倒的举措。
    UNASSIGNED: Several assessment tools have been developed to estimate a patient\'s likelihood risk of falling. None of these measures estimate the contributions of the visual, vestibular, and somatosensory systems to fall risk, especially in patients with degenerative lumbar spine disease.
    UNASSIGNED: Degenerative lumbar spine patients with radiculopathy (LD) and healthy subjects who were 35-70 years old without spine complaints were recruited. Patient reported outcome measures (PROMs) were collected prior to testing. Fall risk assessment was completed using Computer Dynamic Posturography (CDP), a computer-controlled balance machine that allows cone of economy (CoE) and cone of pressure (CoP) measurements. All patients completed Sensory Organization Tests (SOT) which include normal and perturbed stability, both with and without visual cues.
    UNASSIGNED: In total, 43 spine patients and 12 healthy controls were included, with mean age 57.8 years, 39.5% females, and mean BMI of 29.3 kg/m2. Nearly all CoE and most CoP dimensions were found to be larger in LD patients compared to controls across nearly all subtests (p<.05), with the largest dimensions generally observed in the surrounding and support sway testing condition. In LD patients, ODI and PROMIS Pain Interference were negatively correlated with CoE and CoP measurements (p<.05).
    UNASSIGNED: In this prospective study, body sway was assessed as a function of CoE and CoP using the CDP system and was found to be elevated in spine patients, especially when they experienced increasing levels of visual and vestibular stimulation. The ability to identify the primary drivers of balance disorders is essential in spine patients and may be helpful in the development of a patient-specific treatment plan, which may in the future aid with fall-prevention initiatives.
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  • 文章类型: Journal Article
    关于人工耳蜗植入对姿势控制的影响有相互矛盾的报道。相关的前庭丢失,电极插入外伤,耳蜗植入物的电刺激会影响姿势控制。这项研究的重点是耳蜗的电刺激。我们的目的是检查耳蜗植入物的电刺激是否会影响通过姿势描记术测量的姿势控制。
    纳入33例单侧人工耳蜗植入患者。我们在姿势描记术中使用了三个预编程的主测试及其九个子测试。姿势稳定性[一般稳定性指数(GSI)],跌倒风险指数(FRI),并计算感觉统合[改良的平衡感觉统合临床检验(m-CTSIB)]。所有测试都在三个条件下进行:植入物关闭(1),植入(2),并植入音乐(3)。
    平均年龄为46.29±16.09岁。78%的成人人工耳蜗使用者的GSI高于正常范围。我们发现30%的患者的FRI很高,m-CTSIB有42%的缺陷。GSI差异无统计学意义,FRI,和m-CTSIB.当受试者的数据单独可视化时,发现人工耳蜗刺激对姿势控制有积极影响。GSI,FRI,m-CTSIB下降到39%,24%,24%,分别,当音乐响起的时候。年龄与跌倒指数之间存在显着相关性。但是当音乐播放时,这种相关性消失了。
    几乎所有患者的耳蜗植入刺激都会影响前庭系统。大多数患者的效果是积极的。
    UNASSIGNED: There are contradictory reports on the effect of cochlear implantation on postural control. Associated vestibular loss, electrode insertion trauma, and electrical stimulus of a cochlear implant can influence postural control. This study focused on the electrical stimulation of the cochlea. We aimed to examine whether a cochlear implant\'s electrical stimulation affects postural control measured by posturography.
    UNASSIGNED: Thirty-three patients with unilateral cochlear implants were included. We used three preprogrammed main tests and their nine subtests in posturography. Postural stability [general stability index (GSI)], fall risk index (FRI), and sensory integration [modified clinical test of sensory integration of balance (m-CTSIB)] were calculated. All tests were performed under three conditions: implant off (1), implant on (2), and implant on music (3).
    UNASSIGNED: The mean age was 46.29±16.09 years. GSI was above normal limits in 78% of adult cochlear implant users. We found that FRI was high in 30% of patients, and m-CTSIB was defective in 42%. There were no statistically significant differences in GSI, FRI, and m-CTSIB. Cochlear implant stimulation was found to have positively affected postural control when the subject\'s data were visualized individually. GSI, FRI, and m-CTSIB dropped to 39%, 24%, and 24%, respectively, when music was on. There was a significant correlation between age and fall index. But this correlation disappeared when music was playing.
    UNASSIGNED: Cochlear implant stimulation affected the vestibular system in almost all patients. The effect was positive in most patients.
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  • 文章类型: Journal Article
    目的:我们回顾了关于50岁及以上的近期临床骨折患者存在骨骼和骨骼外风险的文献,他们对即将发生的断裂的看法,falls,死亡率,和其他风险,并对骨折联络服务(FLS)的作用进行及时的二次骨折预防。
    结果:近期临床骨折患者表现为骨骼的异质性模式,fall-,以及与合并症相关的风险。短期观点包括骨质流失,骨折风险增加,falls,和死亡率,身体表现和生活质量下降。骨的联合评估,跌倒风险,相关合并症的存在有助于治疗策略。由于骨折与骨的相互作用有关,fall-,和合并症相关的风险,没有一个单一的学科适合所有的方法,但FLS需要多学科的方法来考虑所有表型,以便对单个患者进行评估和治疗.
    OBJECTIVE: We review the literature about patients 50 years and older with a recent clinical fracture for the presence of skeletal and extra-skeletal risks, their perspectives of imminent subsequent fracture, falls, mortality, and other risks, and on the role of the fracture liaison service (FLS) for timely secondary fracture prevention.
    RESULTS: Patients with a recent clinical fracture present with heterogeneous patterns of bone-, fall-, and comorbidity-related risks. Short-term perspectives include bone loss, increased risk of fractures, falls, and mortality, and a decrease in physical performance and quality of life. Combined evaluation of bone, fall risk, and the presence of associated comorbidities contributes to treatment strategies. Since fractures are related to interactions of bone-, fall-, and comorbidity-related risks, there is no one-single-discipline-fits-all approach but a need for a multidisciplinary approach at the FLS to consider all phenotypes for evaluation and treatment in an individual patient.
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  • 文章类型: Journal Article
    介绍中风是一种主要的神经系统事件,由大脑的血流减少或阻塞引起,导致严重的发病率。立即就医对于最大限度地减少脑损伤和改善预后至关重要,因为它会导致许多临床缺陷,如运动障碍,姿势控制的不稳定性,受影响的肌肉组织的补品改变,和一系列的神经功能障碍,如果不被注意的话。沉浸式虚拟现实(VR)已经成为中风康复的一种新型治疗工具,为治疗提供引人入胜和现实的环境。本研究旨在评估沉浸式VR训练结合功能性步态练习在改善脑卒中患者动态平衡和姿势稳定性方面的有效性。与单独的VR训练相比。方法这项比较研究包括来自Madha医学院和医院的30名受试者,钦奈,泰米尔纳德邦,印度,分为两组。A组(n=15)接受了沉浸式VR结合功能步态练习,而B组(n=15)仅接受沉浸式VR。受试者年龄为40-60岁,血压稳定,中风持续时间为两周至六个月。这项研究持续了12周,隔天30分钟。使用功能步态评估(FGA)和跌倒功效量表(FES)评估动态平衡和姿势稳定性。使用参数测试评估测试前和测试后分数。结果试验后平均值显示两组均有显著改善。A组表现出更大的效力,FES评分(平均36.66±11.12)低于B组(平均46.66±9.75)。与B组(平均26.06±1.66)相比,A组的FGA得分更高(平均28.00±0.925)。各组内试验前值和试验后值均有显著性差异,支持VR和步态练习相结合的假设,可以提供更好的康复效果。结论沉浸式VR联合功能性步态锻炼较单用VR明显改善脑卒中患者的动态平衡和姿势稳定性。这种集成方法可以增强运动功能恢复,增加独立性,提高生活质量。VR模拟现实生活活动并提供即时反馈的能力允许个性化康复计划。需要进一步的研究来验证这些发现并优化基于VR的康复方案。
    Introduction Stroke is a major neurological event resulting from reduced or blocked blood flow to the brain, leading to significant morbidity. Immediate medical attention is essential to minimize brain damage and improve outcomes since it leads to many clinical deficits like locomotor impairment, instability in postural control, tonic alterations of the affected musculature, and an array of neurological dysfunctions if left unnoticed. Immersive virtual reality (VR) has emerged as a novel therapeutic tool in stroke rehabilitation, offering engaging and realistic environments for therapy. This study aims to evaluate the effectiveness of immersive VR training combined with functional gait exercises in improving dynamic balance and postural stability in stroke patients, compared to VR training alone. Methods This comparative study included 30 subjects from Madha Medical College and Hospital, Chennai, Tamil Nadu, India, divided into two groups. Group A (n=15) received immersive VR combined with functional gait exercises, while Group B (n=15) received immersive VR alone. Subjects were aged 40-60 years with stable blood pressure and a stroke duration of two weeks to six months. The study spanned 12 weeks, with 30-minute sessions on alternate days. Dynamic balance and postural stability were assessed using the Functional Gait Assessment (FGA) and Falls Efficacy Scale (FES). Pre-test and post-test scores were evaluated using parametric tests. Results Post-test mean values showed significant improvements in both groups. Group A demonstrated greater effectiveness, with lower FES scores (mean 36.66 ± 11.12) than Group B (mean 46.66 ± 9.75). FGA scores were higher in Group A (mean 28.00 ± 0.925) compared to Group B (mean 26.06 ± 1.66). Significant differences were observed in pre-test and post-test values within each group, supporting the hypothesis that combined VR and gait exercises offer superior rehabilitation outcomes. Conclusions Immersive VR combined with functional gait exercises significantly improves dynamic balance and postural stability in stroke patients compared to VR alone. This integrated approach can enhance motor function recovery, increase independence, and improve the quality of life. VR\'s capability to simulate real-life activities and provide immediate feedback allows for personalized rehabilitation programs. Further research is required to validate these findings and optimize VR-based rehabilitation protocols.
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  • 文章类型: Journal Article
    背景:老年人跌倒是健康和功能独立性的常见且严重威胁。它会导致心理困扰,无法参与日常生活活动,脑损伤,骨折,甚至死亡。目的是分析自我评估的跌倒风险量表(FRS)的心理测量特性,该量表用于衡量智利中部地区老年人的跌倒风险,以及验证功能适应度测试的并发有效性。
    方法:对222名年龄在65至85岁之间的老年人(OA)[34名男性和188名女性]进行了描述性横断面研究。对13项自我感知跌倒风险量表(FRS)进行了验证。人体测量(体重,身高和腰围)进行评估。测量了五项功能适应度测试(右手和左手握力,二头肌卷曲,上上下下,敏捷性和6分钟步行测试)。通过结构验证[(探索性因子分析(EFA)和验证性因子分析(CFA)]和并发有效性进行验证。
    结果:EFA在FRS量表中揭示了4个因素[1:害怕跌倒(方差27.1%),2:辅助设备的使用(差异10.6%),3:感觉丧失(方差9.3%),和4:有限的流动性(差异8.3%)]。在这4个组成部分中,因子负荷范围从0.50到0.83。Kaiser-MeyerOlkin样本充分性检验(KMO)反映了足够的充分性(KMO=0.79,卡方(X2)=498.806,gl=78,p=0.00)。CFA显示令人满意的最终拟合[卡方(X2)=126.748,近似均方根误差(RMSEA)=0.042,塔克-刘易斯指数(TLI)=0.946,比较拟合指数(CFI)=0.935y标准拟合指数(NFI)=0.90。FRS量表与功能适应度测试(右手和左手握力,二头肌卷曲,上上下下,敏捷性和6分钟步行测试)范围从低到中等(r=-0.23至0.41)。
    结论:FRS量表在智利中部地区的老年人中显示出可接受的效度和信度。预计该量表将有助于评估智利人口老龄化的临床和流行病学环境中的跌倒风险。
    BACKGROUND: Falls in older adults are a common and serious threat to health and functional independence. It can cause psychological distress, inability to participate in activities of daily living, brain injury, fractures, and even death. The aim was to analyze the psychometric properties of the self-assessed fall risk scale (FRS) that measures the risk of falls in older adults in a central region of Chile, as well as to verify the concurrent validity against functional fitness tests.
    METHODS: A descriptive cross-sectional study was carried out in 222 older adults (OA) [34 males and 188 females] with an age range of 65 to 85 years. The 13-item self-perceived fall risk scale (FRS) was validated. Anthropometric measures (weight, height and waist circumference) were assessed. Five functional fitness tests were measured (right and left hand grip strength, biceps curl, up-and-go, agility and 6-minute walk test). Validation was performed by construct validation [(exploratory factor analysis (EFA) and confirmatory factor analysis (CFA)] and concurrent validity.
    RESULTS: The EFA revealed 4 factors in the FRS scale [1: fear of falling (variance 27.1%), 2: use of assistive devices (variance 10.6%), 3: loss of sensation (variance 9.3%), and 4: limited mobility (variance 8.3%)]. Factor loadings ranged from ∼ 0.50 to 0.83 across the 4 components. The Kaiser-Meyer Olkin sample adequacy test (KMO) reflected adequate adequacy (KMO = 0.79, chi-square (X2) = 498.806, gl = 78, p = 0.00). The CFA showed a satisfactory final fit [chi-square (X2) = 126.748, Root mean squared error of approximation (RMSEA) = 0.042, Tucker-Lewis Index (TLI) = 0.946, Comparative fit index (CFI) = 0.935 y Normed fit index (NFI) = 0.90. The relationships between the FRS scale and functional fitness tests (right and left hand grip strength, biceps curl, up-and-go, agility and 6-minute walk test) ranged from low to moderate (r= -0.23 to 0.41).
    CONCLUSIONS: The FRS scale showed acceptable validity and reliability in older adults in central region of Chile. It is expected that this scale will be useful for assessing fall risk in clinical and epidemiological settings in the aging Chilean population.
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  • 文章类型: Journal Article
    设计适当的诊断和治疗方法,以降低跌倒风险,提高生活质量,以及降低老年人的护理成本。我们的发现有可能早期诊断那些基于相当简单的脊柱后凸畸形的临床措施的高概率跌倒。前头,和脊柱前凸.
    背景:平衡不良是老年人跌倒的根本原因,脊柱自然曲率的变化起着重要作用。关于该人群中脊柱弯曲与跌倒发生率之间的关系知之甚少。我们的主要目的是调查矢状平面脊柱曲率与护理机构居民1年以上跌倒发生率之间的关系。其次,我们的目标是确定矢状平面脊柱弯曲与参与者对跌倒风险和平衡能力的感知之间的关联。
    方法:参与者(100名居民,平均年龄70.17±6.01岁)接受了矢状平面脊柱曲率(柔性直尺技术)和头部相对于颈椎的向前位移的站立测量。Tinetti绩效导向的流动性评估(POMA)和跌倒功效量表评估了参与者对平衡的感知和对跌倒的恐惧。事件跌倒每月自我报告,并在1年内进行跟踪。Spearman的相关性和逻辑回归评估了跌倒发生率和脊柱弯曲之间的关联。脊柱弯曲和跌倒风险的预测表现由相应的ROC确定,用于定义脊柱弯曲和跌倒风险指标的变量的截止值。
    结果:脊柱弯曲和跌倒危险因素的预测表现表明,84%和77%的参与者使用后凸和头角模型进行了正确分类,分别。
    结论:我们的研究增加了有关护理机构居民脊柱弯曲和意外跌倒的新数据。需要努力干预以对抗脊柱弯曲的进展并改善跌倒预防措施。
    Designing appropriate diagnostic and treatment methods to reduce fall risk and improve quality of life, as well as reduce the cost of care in elderlies. Our findings have potential for early diagnosis of those with a high probability of falling based on fairly simple clinical measures of hyperkyphosis, forward head, and lordosis.
    BACKGROUND: Poor balance is an underlying cause of falling in the elderly, for which a change in the natural curvature of the spine plays a major role. Little is known about the relationship between spinal curvatures and fall incidence in this population. We primarily aimed to investigate the relationship between sagittal plane spinal curvatures and fall incidence over 1 year among nursing facility residents. Secondarily, we aim to determine associations of sagittal plane spinal curvatures with participants\' perception of fall risk and balance capability.
    METHODS: Participants (100 residents mean age 70.17 ± 6.01 years) underwent standing measures of sagittal plane spinal curvatures (flexible ruler technique) and forward displacement of the head relative to the cervical spine. The Tinetti Performance Oriented Mobility Assessment (POMA) and Fall Efficacy Scale assessed participants\' perception of balance and fear of falling. Incident falls were self-reported monthly and tracked across 1 year. Spearman\'s correlations and logistic regression evaluated associations between fall incidence and spinal curvature. Predictive performance of spinal curvature and fall risk was determined by the corresponding ROC for defining a cut-off for variables of spinal curvature and fall risk indicators.
    RESULTS: Predictive performance of spinal curvature and fall risk factors indicated 84% and 77% of participants were correctly classified using models of kyphosis and head angle, respectively.
    CONCLUSIONS: Our study adds new data on spinal curvatures and incident falls among nursing facility residents. Efforts are needed to intervene to counter progression of spinal curvatures and improve fall prevention practices.
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  • 文章类型: Journal Article
    目的:目前尚无预测中风后髋部骨折的模型。本研究旨在调查导致脑卒中患者髋部骨折的危险因素,并建立风险预测模型以可视化该风险。
    方法:回顾性分析徐州医科大学附属医院2014年6月至2017年6月收治的439例脑卒中伴或不伴髋部骨折患者作为训练组。并收集2020年6月至2023年6月哈尔滨医科大学附属第一医院和徐州医科大学附属医院同类型患者83例作为检测集。根据是否存在髋部骨折将患者分为骨折组和非骨折组。采用多因素logistic回归分析筛选有意义的因素。基于多因素分析建立预测髋部骨折发生风险的列线图,并使用受试者工作特性曲线(ROC)评估性能,校正曲线,和决策曲线分析(DCA)。创建了一个网络计算器,以促进临床医生更方便的互动体验。
    结果:在训练集中,脑卒中后髋部骨折35例(7.9%),在测试集中,该数据为13例(15.6%)。在训练集中,单因素分析显示两组跌倒次数有显著差异,吸烟,高血压,糖皮质激素,笔划数,小型精神状态检查(MMSE),视敏度水平,美国国立卫生研究院卒中量表(NIHSS),伯格平衡量表(BBS),说话时停止行走(SWWT)(P<0.05)。多因素分析显示跌倒次数[OR=17.104,95%CI(3.727-78.489),P=0.000],NIHSS[OR=1.565,95%CI(1.193-2.052),P=0.001],SWWT[OR=12.080,95%CI(2.398-60.851),P=0.003]是与新发骨折呈正相关的独立危险因素。骨密度[OR=0.155,95%CI(0.044-0.546),P=0.012]和BBS[OR=0.840,95%CI(0.739-0.954),P=0.007]与新骨折呈负相关。训练和测试集列线图曲线下面积(AUC)分别为0.939(95%CI:0.748-0.943)和0.980(95%CI:0.886-1.000),分别,校准曲线显示预测和实际状态之间的高度一致性,决策曲线下的面积分别为0.034和0.109。
    结论:跌倒的次数,骨折史,BBS得分低,NIHSS得分高,和阳性SWWT是脑卒中后髋部骨折的危险因素。基于此,开发了一个高精度的列线图和一个网络计算器(https://stroke。shinyapps.io/DynNomapp/)已创建。
    OBJECTIVE: There are currently no models for predicting hip fractures after stroke. This study wanted to investigate the risk factors leading to hip fracture in stroke patients and to establish a risk prediction model to visualize this risk.
    METHODS: We reviewed 439 stroke patients with or without hip fractures admitted to the Affiliated Hospital of Xuzhou Medical University from June 2014 to June 2017 as the training set, and collected 83 patients of the same type from the First Affiliated Hospital of Harbin Medical University and the Affiliated Hospital of Xuzhou Medical University from June 2020 to June 2023 as the testing set. Patients were divided into fracture group and non-fracture group based on the presence of hip fractures. Multivariate logistic regression analysis was used to screen for meaningful factors. Nomogram predicting the risk of hip fracture occurrence were created based on the multifactor analysis, and performance was evaluated using receiver operating characteristic curve (ROC), calibration curves, and decision curve analysis (DCA). A web calculator was created to facilitate a more convenient interactive experience for clinicians.
    RESULTS: In training set, there were 35 cases (7.9 %) of hip fractures after stroke, while in testing set, this data was 13 cases (15.6 %). In training set, univariate analysis showed significant differences between the two groups in the number of falls, smoking, hypertension, glucocorticoids, number of strokes, Mini-Mental State Examination (MMSE), visual acuity level, National Institute of Health stroke scale (NIHSS), Berg Balance Scale (BBS), and Stop Walking When Talking (SWWT) (P<0.05). Multivariate analysis showed that number of falls [OR=17.104, 95 % CI (3.727-78.489), P = 0.000], NIHSS [OR=1.565, 95 % CI (1.193-2.052), P = 0.001], SWWT [OR=12.080, 95 % CI (2.398-60.851), P = 0.003] were independent risk factors positively associated with new fractures. BMD [OR = 0.155, 95 % CI (0.044-0.546), P = 0.012] and BBS [OR = 0.840, 95 % CI (0.739-0.954), P = 0.007] were negatively associated with new fractures. The area under the curve (AUC) of nomogram were 0.939 (95 % CI: 0.748-0.943) and 0.980 (95 % CI: 0.886-1.000) in training and testing sets, respectively, and the calibration curves showed a high agreement between predicted and actual status with an area under the decision curve of 0.034 and 0.109, respectively.
    CONCLUSIONS: The number of falls, fracture history, low BBS score, high NIHSS score, and positive SWWT are risk factors for hip fracture after stroke. Based on this, a nomogram with high accuracy was developed and a web calculator (https://stroke.shinyapps.io/DynNomapp/) was created.
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  • 文章类型: Journal Article
    目前尚无有效的老年人跌倒风险筛查工具可纳入临床实践。开发一种可以在初级保健服务中轻松使用的系统是当前的需求。当前的研究集中在使用多个传感器或活动来实现更高的精度。然而,多个传感器和活动降低了这些系统的可用性。这项研究旨在开发一种系统,通过使用短期活动期间从单个传感器记录的信号来为老年人执行跌倒预测。使用从71位老年人获得的加速度信号在时域和频域中创建了总共168个特征。基于ReliefF算法对特征进行加权,人工神经网络模型是利用最重要的特征开发的。使用对于K=20个最近邻加权的那些特征的17个最重要的特征来获得最佳分类结果。最高准确度为82.2%(灵敏度为82.9%,81.6%特异性)。在我们的研究中获得的部分高精度表明,通过确定正确的特征,可以使用传感器和简单的活动在早期检测到跌倒,并且可以很容易地应用于常规随访期间对老年人的评估。
    There is no effective fall risk screening tool for the elderly that can be integrated into clinical practice. Developing a system that can be easily used in primary care services is a current need. Current studies focus on the use of multiple sensors or activities to achieve higher accuracy. However, multiple sensors and activities reduce the availability of these systems. This study aims to develop a system to perform fall prediction for the elderly by using signals recorded from a single sensor during a short-term activity. A total of 168 features in the time and frequency domains were created using acceleration signals obtained from 71 elderly people. The features were weighted based on the ReliefF algorithm, and the artificial neural networks model was developed using the most important features. The best classification result was obtained using the 17 most important features of those weighted for K = 20 nearest neighbors. The highest accuracy was 82.2% (82.9% Sensitivity, 81.6% Specificity). The partially high accuracy obtained in our study shows that falling can be detected early with a sensor and a simple activity by determining the right features and can be easily applied in the assessment of the elderly during routine follow-ups.
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  • 文章类型: Journal Article
    在老年人群中,敏感的跌倒风险评估工具对于及时干预和预防跌倒非常重要。仪器化的评估已被证明优于标准化的跌倒风险评估,例如定时向上测试(TUG),并且应同时捕获运动和认知功能。因此,目的是测试有和没有认知部分的新型仪器化评估.一百三十七个年龄在73.1±7.3岁的老年人,38被归类为下跌者,99被归类为非下跌者,对Senso股息进行了五次工具化评估,一个压力敏感的踏步平台,和三项标准化老年评估(TUG,TUG-双重任务,30-s坐立试验(STS))。T检验用于比较跌倒者与非跌倒者的测试性能。此外,进行logistic回归分析和曲线下面积(AUC)分析.在Go/No-Go检验中发现了下跌者和非下跌者之间的统计学显着差异(p=.001,d=.72),TUG(p=.014,d=.48),和STS(p=.008,d=.51)。只有Go/No-Go检验对所有回归模型做出了显著贡献。反应时间测试(RTT)发现显著的AUC值(AUC=.628,p=.023),Go/No-Go(AUC=.673,p=.002),TUG(AUC=.642,p=.012),和STS(AUC=.690,p=.001)。测量抑制的Go/No-Go测试显示出最佳的辨别能力,表明在相对健康的老年人中,具有认知成分的仪器评估具有更高的价值,可用于临床跌倒风险评估。这项研究应该扩展到更脆弱的人群,其中TUG和其他工具评估也可能是很好的预测因子。
    In older populations, sensitive fall risk assessment tools are important to timely intervene and prevent falls. Instrumented assessments have shown to be superior to standardized fall risk assessments such as the Timed Up and Go Test (TUG) and should capture both motor and cognitive functions. Therefore, the aim was to test novel instrumented assessments with and without a cognitive component. One hundred thirty-seven older adults aged 73.1 ± 7.3 years, 38 categorized as fallers and 99 as non-fallers, conducted five instrumented assessments on the Dividat Senso, a pressure sensitive stepping platform, and three standardized geriatric assessments (TUG, TUG-dual task, 30-s Sit-to-Stand Test (STS)). T-tests were applied to compare the test performance of fallers versus non-fallers. Furthermore, logistic regression analyses and area under the curve (AUC) analyses were performed. Statistically significant differences between fallers and non-fallers were found in the Go/No-Go test (p = .001, d = .72), the TUG (p = .014, d = .48), and the STS (p = .008, d = .51). Only the Go/No-Go test contributed significantly to all regression models. Significant AUC values were found for the Reaction Time Test (RTT) (AUC = .628, p = .023), Go/No-Go (AUC = .673, p = .002), TUG (AUC = .642, p = .012), and STS (AUC = .690, p = .001). The Go/No-Go test measuring inhibition showed the best discriminative ability suggesting added value of instrumented assessments with a cognitive component for clinical fall risk assessment in relatively healthy older adults. The study should be extended with a frailer population, in which TUG and the other instrumented assessments are possibly good predictors as well.
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