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Visualisation of upper limb activity using spirals - a new approach to the 1 assessment of daily prosthesis usage

机译:使用螺旋线可视化上肢活动-一种评估日常假体使用情况的新方法1

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摘要

BACKGROUND: Current outcome measures used in upper limb myoelectric prosthesis studies include clinical tests of function and self-report questionnaires on real world prosthesis use. Research in other cohorts has questioned both the validity of self-report as an activity assessment tool and the relationship between clinical functionality and real-world upper limb activity. Previously1 we reported the first results of monitoring upper-limb prosthesis use. udHowever, the data visualisation technique used was limited in scope.udOBJECTIVES: To introduce two new methods for the analysis and display of upper limb activity monitoring data and to demonstrate the potential value of the approach with example real world data. METHODS: Upper limb activity monitors, worn on each wrist, recorded data on two anatomically intact (AI) participants and two prosthesis users (PU) over one week. Participants also filled in a diary to record upper limb activity. Data visualisation were carried out using histograms, and Archimedean spirals to illustrate temporal patterns of upper limb activity.udRESULTS: AI participants’ activity was largely bilateral in nature, interspersed with frequent bursts of unilateral activity of each arm. At times when the prosthesis was worn PU showed very little unilateral use of the prosthesis (≈20-40 min/week compared to ≈350 min/week unilateral activity on each arm for AI participants), with consistent bias towards the intact arm throughout. The Archimedean spiral plots illustrated participant-specific patterns of non-use in PU. udCONCLUSIONS: The data visualisation techniques allow detailed and objective assessment of temporal patterns in the upper limb activity of prosthesis users.
机译:背景:上肢肌电假体研究中使用的当前结果指标包括功能测试和关于真实假体使用情况的自我报告调查表。其他人群的研究质疑自我报告作为活动评估工具的有效性以及临床功能与现实世界上肢活动之间的关系。先前,我们报道了监测上肢假体使用的第一批结果。 ud但是,所使用的数据可视化技术的范围受到限制。 ud目标:引入两种新方法来分析和显示上肢活动监视数据,并通过实际示例数据演示该方法的潜在价值。方法:戴在每个手腕上的上肢活动监测器在一周内记录了两个解剖完整(AI)参与者和两个假体使用者(PU)的数据。参与者还填写了日记以记录上肢活动。使用直方图和阿基米德螺旋线进行数据可视化,以说明上肢活动的时间模式。结果:AI参与者的活动本质上是双侧的,穿插着每只手臂频繁发生的单侧活动。在假体磨损的时候,PU几乎没有单方面使用假体(≈20-40分钟/周,而AI参与者每只手臂的≈350分钟/周单侧活动),并且始终对完整手臂持偏见。阿基米德螺线图说明了参与者特定的PU不使用模式。 ud结论:数据可视化技术允许详细,客观地评估假肢使用者上肢活动中的时间模式。

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