Search

[Purpose] There have been no reports in which the activity of the upper extremity has been assessed quantitatively in the sitting position. This study aimed to examine the daily activity of the upper extremity in the sitting position using two different accelerometers. [Methods] In the first experiment, young healthy students wore accelerometers. The activities in the sitting position were videotaped and analyzed, then the level of activities was determined. In the second experiment, the activities of the upper extremity in everyday life were monitored by an accelerometer and total sitting time, the activity time and the percentage of the upper extremity activity in each activity were analyzed. [Results] In the first experiment, there was strong significant correlation between the times measured by the accelerometers and the videotape. There were no additional or proportional errors in the level of times measured by the two methods. In the second experiment, even for the young healthy students, activity was at a low level for the majority of the total sitting time. [Conclusions] The activities of the upper extremity were divided into three categories according to their strength using two different accelerometers. Furthermore, the daily activity of the upper extremity in actual life could be evaluated according to its level of strength. [ABSTRACT FROM AUTHOR]