Archives of physical medicine and rehabilitation
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Arch Phys Med Rehabil · Feb 1985
Chronic pain: electromechanical recording device for measuring patients' activity patterns.
Many authors have recommended the development and use of automated recording devices as alternatives to self-report measures of activity patterns in chronic pain patients. An electromechanical device is described that can be used to measure downtime or uptime in chronic pain patients. ⋯ The device has high reliability (agreement coefficients of 1.0) and concurrent validity (r = 0.99) for both downtime and uptime assessments. Research applications and clinical use of this device are discussed as well as directions for the further development of automated recording devices.