Reach–grasp movements are motor components commonly affected after stroke and directly related to the independence of these individuals. Evaluations of these activities can be performed using clinical instruments and assessed by detailed and costly kinematic analyses. The aim of this study was to develop an analysis of reach–grasp movements in post-stroke patients using a simple, inexpensive, and manageable instrument. A Mann–Whitney test was used to compare paretic and non-paretic limb motor performance. A statistically significant difference was found between the variables of total time (p = 0.02) and speed to reach target 3 (p = 0.04) for task 1, while in task 2 significance was found only in the aspect of speed to reach target 2 (p = 0.04). The correlation between clinical tests and variables of tasks was then performed using Spearman’s rank correlation coefficient. At task 1, when compared with the REACH instrument, the close target sub-item; there was a high positive correlation between the parameters of total time (p = 0.028), target velocity 3 (p = 0.028), and target acceleration 3 (p = 0.028). Another instrument that showed a high positive correlation with the target time 3 (p = 0.01) and target acceleration 3 (p = 0.028) variables was the Box and Block Test. When correlated, the data between the task 2 variables and clinical instruments did not present statistically significant data. Our instrument—the Temporal Data Acquisition Instrument—TDAI—fulfilled the expected objectives and can be used as an option to evaluate the movements of reach and grasp of upper limb post-stroke, using an easy and fast application, without the need for calibration. Trial registration Trial Registration: Research Ethics Committee of the Trairi School of Health Sciences—Number 2.625.609, approved on April 13, 2018; Brazilian Registry of Clinical Trials—RBR-4995cr approved on July 4, 2019 retrospectively registered (http://www.ensaiosclinicos.gov.br/rg/RBR-4995cr/)

中文翻译：

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用于评估卒中后患者伸手和抓地力的低成本设备：一项试点研究

伸手运动是中风后通常受影响的运动成分，直接关系到这些人的独立性。这些活动的评估可以使用临床仪器进行，并通过详细而昂贵的运动学分析进行评估。这项研究的目的是使用一种简单，便宜且易于管理的仪器，对中风后患者的伸手抓握运动进行分析。进行了Mann-Whitney检验来比较肢体运动能力和非肢体运动能力。在任务1的总时间（p = 0.02）和达到目标3的速度（p = 0.04）之间发现了统计学上的显着差异，而在任务2中，仅在达到目标2的速度方面发现了显着差异（ p = 0.04）。然后使用Spearman等级相关系数进行临床测试与任务变量之间的相关性。在任务1中，与REACH工具相比，接近目标子项目；总时间（p = 0.028），目标速度3（p = 0.028）和目标加速度3（p = 0.028）的参数之间存在高度正相关。Box and Block Test是另一种与目标时间3（p = 0.01）和目标加速度3（p = 0.028）变量呈高度正相关的仪器。当相关时，任务2变量和临床工具之间的数据没有统计学上的显着性数据。我们的工具-时间数据采集工具-TDAI-达到了预期目标，可以用作评估中风后上肢伸直和抓握动作的一种选择，使用简单快速的应用程序，无需校准。试用注册试用注册：Trairi健康科学学院研究伦理委员会，编号2.625.609，于2018年4月13日批准；巴西临床试验注册中心-RBR-4995cr于2019年7月4日获得批准并追溯注册（http://www.ensaiosclinicos.gov.br/rg/RBR-4995cr/）