Background: Mobility limitations and cognitive impairments which are common with ageing often coexist, causing a reduction in the levels of physical and mental activity and are prognostic of future adverse health even...Background: Mobility limitations and cognitive impairments which are common with ageing often coexist, causing a reduction in the levels of physical and mental activity and are prognostic of future adverse health events and falls. Consequently, multi-task training paradigms that simultaneously address both mobility and cognition benefit healthy ageing are important to consider in rehabilitation as well as primary prevention. Objectives: An exploratory RCT is being conducted to: a) describe the feasibility and acceptability of the study design and process, procedures, resources and management in two game-based dual-task training programs delivered in the community;b) to explore the lived experiences of the study participants who completed their respective exercise programs. A secondary objective is to obtain preliminary data on the therapeutic effectiveness of the two dual-task training programs. Methods: Thirty healthy older community dwelling participants aged 70 - 85 with previous history of falls will be recruited and randomized to either dual- task treadmill walking (experimental group) or dual-task recumbent bicycle (control group). Data analysis: The qualitative data will be analyzed by two investigators using a content analysis approach. For the quantitative data, outcome measures will be collected pre and post intervention and included measures to assess core balance, spatial-temporal gait variables, visual tracking and cognitive function, as well as, balance and gait analysis under dual-task conditions. Discussion: This research will demonstrate the feasibility of the dual-task training programs in the community, and demonstrate the system’s ability to improve targeted and integrated (dual-task) aspects of balance, mobility, gaze, and cognitive performance. A blended analysis of balance, mobility gaze and cognition will also contribute to a better understanding of the functional consequences of decline in physical and mental skills with age. Trial registration: This pilot clinical trial has been registered at ClinicalTrials.gov Protocol Registration System: NCT01940055.展开更多
针对多视觉任务中传输成本高、解码端计算压力大的问题,提出一种自适应可伸缩视频编码(adaptive scalable video coding,ASVC)传输框架,将视频分为语义层和背景层,分别传输语义和背景信息。此外,提出一种自适应压缩算法,构建了C4.5决策...针对多视觉任务中传输成本高、解码端计算压力大的问题,提出一种自适应可伸缩视频编码(adaptive scalable video coding,ASVC)传输框架,将视频分为语义层和背景层,分别传输语义和背景信息。此外,提出一种自适应压缩算法,构建了C4.5决策树模型分析网络环境对视频进行压缩的决策判定,并对帧序列进行光流分析,在保留变化显著的帧基础上引入插值机制保持图像的平滑性。仿真结果表明,ASVC方法在不同码率环境下表现更高的识别精准率,视频质量和传输效率的显著提升。展开更多
目的 分析任务导向性训练(task-oriented training,TOT)在脑卒中康复领域中的研究现状、热点及趋势。方法 系统检索中国知网、万方数据知识服务平台、维普网、中国生物医学文献服务系统和Web of Science数据库自建库至2025年4月关于TOT...目的 分析任务导向性训练(task-oriented training,TOT)在脑卒中康复领域中的研究现状、热点及趋势。方法 系统检索中国知网、万方数据知识服务平台、维普网、中国生物医学文献服务系统和Web of Science数据库自建库至2025年4月关于TOT干预脑卒中康复的研究。采用Cite Space 6.3.R1软件对发文量、作者、机构及关键词进行可视化分析,同时绘制可视化知识图谱。结果 中文数据库和英文数据库分别纳入相关文献314篇和283篇,中文发文量总体呈上升趋势,英文发文量则稳中有降;发文机构间合作较少,未形成稳定的核心作者团队;TOT在脑卒中偏瘫患者的肢体功能康复、日常生活能力等方面应用广泛。结论 TOT应用于脑卒中康复领域的研究正处于发展阶段,TOT与中医特色技术、人工智能的联合将成为研究热点。展开更多
文摘Background: Mobility limitations and cognitive impairments which are common with ageing often coexist, causing a reduction in the levels of physical and mental activity and are prognostic of future adverse health events and falls. Consequently, multi-task training paradigms that simultaneously address both mobility and cognition benefit healthy ageing are important to consider in rehabilitation as well as primary prevention. Objectives: An exploratory RCT is being conducted to: a) describe the feasibility and acceptability of the study design and process, procedures, resources and management in two game-based dual-task training programs delivered in the community;b) to explore the lived experiences of the study participants who completed their respective exercise programs. A secondary objective is to obtain preliminary data on the therapeutic effectiveness of the two dual-task training programs. Methods: Thirty healthy older community dwelling participants aged 70 - 85 with previous history of falls will be recruited and randomized to either dual- task treadmill walking (experimental group) or dual-task recumbent bicycle (control group). Data analysis: The qualitative data will be analyzed by two investigators using a content analysis approach. For the quantitative data, outcome measures will be collected pre and post intervention and included measures to assess core balance, spatial-temporal gait variables, visual tracking and cognitive function, as well as, balance and gait analysis under dual-task conditions. Discussion: This research will demonstrate the feasibility of the dual-task training programs in the community, and demonstrate the system’s ability to improve targeted and integrated (dual-task) aspects of balance, mobility, gaze, and cognitive performance. A blended analysis of balance, mobility gaze and cognition will also contribute to a better understanding of the functional consequences of decline in physical and mental skills with age. Trial registration: This pilot clinical trial has been registered at ClinicalTrials.gov Protocol Registration System: NCT01940055.
文摘针对多视觉任务中传输成本高、解码端计算压力大的问题,提出一种自适应可伸缩视频编码(adaptive scalable video coding,ASVC)传输框架,将视频分为语义层和背景层,分别传输语义和背景信息。此外,提出一种自适应压缩算法,构建了C4.5决策树模型分析网络环境对视频进行压缩的决策判定,并对帧序列进行光流分析,在保留变化显著的帧基础上引入插值机制保持图像的平滑性。仿真结果表明,ASVC方法在不同码率环境下表现更高的识别精准率,视频质量和传输效率的显著提升。
文摘目的 分析任务导向性训练(task-oriented training,TOT)在脑卒中康复领域中的研究现状、热点及趋势。方法 系统检索中国知网、万方数据知识服务平台、维普网、中国生物医学文献服务系统和Web of Science数据库自建库至2025年4月关于TOT干预脑卒中康复的研究。采用Cite Space 6.3.R1软件对发文量、作者、机构及关键词进行可视化分析,同时绘制可视化知识图谱。结果 中文数据库和英文数据库分别纳入相关文献314篇和283篇,中文发文量总体呈上升趋势,英文发文量则稳中有降;发文机构间合作较少,未形成稳定的核心作者团队;TOT在脑卒中偏瘫患者的肢体功能康复、日常生活能力等方面应用广泛。结论 TOT应用于脑卒中康复领域的研究正处于发展阶段,TOT与中医特色技术、人工智能的联合将成为研究热点。
