Individuals with hand osteoarthritis (OA) have impairments in grip strength and range of motion (ROM). Obtaining quantitative joint angle measures of the hand is difficult. Without a complete understanding of the kinematics of the hand, the assessment of hand OA when performing activities of daily living (ADL) and recreational activities is not fully understood. The objectives of this study were to establish a simple measurement technique (Grip Configuration Model) describing an individual's grip ROM using the Dartfish Movement Analysis Software, and compare the joint angle measures during maximum flexion/extension and five ADL in people with/without hand OA. Forty participants (20 without hand OA, 20 with hand OA) thumb CMC and MCP, and index MCP and PIP joint angles were evaluated for each activity using the Dartfish Software and Grip Configuration Model. Significant limitations of 17.2% (P<0.001) and 12.7% (P=0.01) were seen in the group with hand OA for maximum flexion/extension, respectively. The spray bottle task demonstrated a significant difference of 14.7% (P=0.001) between the two test groups. Measurements using the Dartfish Software were compared against a manual goniometer and electromagnetic tracking system. This study demonstrated the weakened ROM in individuals with hand OA is translated to ADL and how the Grip Configuration Model simplifies the evaluation of how people grasp objects.

患有手部骨关节炎 (OA) 的个体在握力和运动范围 (ROM) 方面存在障碍。获得定量的手关节角度测量是困难的。如果没有完全了解手的运动学，在进行日常生活活动 (ADL) 和娱乐活动时对手部 OA 的评估还没有完全了解。本研究的目的是建立一种使用 Dartfish 运动分析软件描述个人握力 ROM 的简单测量技术（握力配置模型），并比较有/没有手 OA 的人在最大屈曲/伸展和五个 ADL 期间的关节角度测量值. 40 名参与者（20 名没有手 OA，20 名有手 OA）拇指 CMC 和 MCP，使用 Dartfish 软件和握把配置模型评估每个活动的指数 MCP 和 PIP 关节角度。在手部 OA 组中，最大屈曲/伸展的显着限制分别为 17.2% (P<0.001) 和 12.7% (P=0.01)。喷雾瓶任务表明两个测试组之间存在 14.7% (P=0.001) 的显着差异。使用 Dartfish 软件进行的测量与手动测角仪和电磁跟踪系统进行了比较。这项研究表明，手部 OA 个体的 ROM 减弱被转化为 ADL，以及握力配置模型如何简化对人们如何抓握物体的评估。喷雾瓶任务表明两个测试组之间存在 14.7% (P=0.001) 的显着差异。使用 Dartfish 软件进行的测量与手动测角仪和电磁跟踪系统进行了比较。这项研究表明，手部 OA 个体的 ROM 减弱被转化为 ADL，以及握力配置模型如何简化对人们如何抓握物体的评估。喷雾瓶任务表明两个测试组之间存在 14.7% (P=0.001) 的显着差异。使用 Dartfish 软件进行的测量与手动测角仪和电磁跟踪系统进行了比较。这项研究表明，手部 OA 个体的 ROM 减弱被转化为 ADL，以及握力配置模型如何简化对人们如何抓握物体的评估。