活动计：慢性疼痛患者仪器适用性评估

The actometer: an evaluation of instrument applicability for chronic pain patients.

作者信息

Morrell Eric M, Keefe Francis J

机构信息

University of Michigan and Ann Arbor VA Medical Centers, Ann Arbor, MIU.S.A. Department of Psychiatry, Duke University Medical Center, Durham, NC 27710 U.S.A.

出版信息

Pain. 1988 Mar;32(3):265-270. doi: 10.1016/0304-3959(88)90036-X.

DOI:10.1016/0304-3959(88)90036-X

PMID:3362564

Abstract

Three experiments were conducted to determine the reliability and validity of an activity measurement device, the actometer, as an index of ambulation for chronic pain patients. In experiment I, correlations between yoked actometers during ambulation showed the instrument to be internally reliable. In experiment II, actometer readings covaried very strongly with distance, showing the device to be valid during single trial assessment. However, experiment III found the device to show poor reliability over time (i.e., substantial measurement variability for the identical distance on 3 separate days). The results suggest that, for the chronic pain population, the actometer may not be a useful instrument for reliably assessing changes in walking activity over time.

摘要

进行了三项实验，以确定一种活动测量装置——活动计步器，作为慢性疼痛患者步行指标的可靠性和有效性。在实验I中，步行过程中配对的活动计步器之间的相关性表明该仪器具有内部可靠性。在实验II中，活动计步器的读数与距离的协变非常强烈，表明该装置在单次试验评估中是有效的。然而，实验III发现该装置随时间推移显示出较差的可靠性（即，在3个不同日期相同距离的测量存在很大差异）。结果表明，对于慢性疼痛人群，活动计步器可能不是可靠评估随时间变化的步行活动的有用工具。