期刊
SENSORS
卷 19, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/s19081782
关键词
inertial measurement unit; upper extremity; motion; action research arm test; activities of daily living
资金
- Brain Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning [2016M3C7A1904984]
In practical rehabilitation robot development, it is imperative to pre-specify the critical workspace to prevent redundant structure. This study aimed to characterize the upper extremity motion during essential activities in daily living. An IMU-based wearable motion capture system was used to access arm movements. Ten healthy subjects performed the Action Research Arm Test (ARAT) and six pre-selected essential daily activities. The Euler angles of the major joints, and acceleration from wrist and hand sensors were acquired and analyzed. The size of the workspace for the ARAT was 0.53 (left-right) x 0.92 (front-back) x 0.89 (up-down) m for the dominant hand. For the daily activities, the workspace size was 0.71 x 0.70 x 0.86 m for the dominant hand, significantly larger than the non-dominant hand (p 0.011). The average range of motion (RoM) during ARAT was 109.15 +/- 18.82 degrees for elbow flexion/extension, 105.23 +/- 5.38 degrees for forearm supination/pronation, 91.99 +/- 0.98 degrees for shoulder internal/external rotation, and 82.90 +/- 22.52 degrees for wrist dorsiflexion/volarflexion, whereas the corresponding range for daily activities were 120.61 +/- 23.64 degrees, 128.09 +/- 22.04 degrees, 111.56 +/- 31.88 degrees, and 113.70 +/- 18.26 degrees. The shoulder joint was more abducted and extended during pinching compared to grasping posture (p < 0.001). Reaching from a grasping posture required approximately 70 degrees elbow extension and 36 degrees forearm supination from the initial position. The study results provide an important database for the workspace and RoM for essential arm movements.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据