• Mélanie Racine, Mark P Jensen, Douglas Cane, Dwight E Moulin, VlaeyenJohan W SJWSResearch Group Health Psychology, Faculty of Psychology and Educational Sciences, KU Leuven, Leuven.Experimental Health Psychology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, the Netherlands., and Warren R Nielson.
• Department of Clinical Neurological Sciences, Schulich School of Medicine & Dentistry, Western University.
• Clin J Pain. 2024 Apr 1; 40 (4): 200211200-211.

ObjectivesActivity management is an important treatment component in chronic pain programs. However, there are shortcomings in measures of this construct, leading to inconsistencies in research findings. Here, we describe the development of the Activity Management Inventory for Pain (AMI-P).Materials And MethodsThe AMI-P was developed by a group of international researchers with extensive expertise in both chronic pain and activity management. The initial evaluation of the AMI-P items included 2 studies that were both conducted in Canadian tertiary pain care centers.ResultsThe resulting 20-item measure has 3 behavior scales (Rest, Alternating Activity, and Planned Activity), and 4 goal scales (Feel Less Pain, Get More Done, Complete the Task, and Save Energy). The behavior scales evidenced marginal to good internal consistency and test-retest reliability, and a moderate positive association with an existing pacing measure. The Rest and Alternating Activity scales were associated with greater pain interference, the Alternating Activity and Planned Activity scales were associated with less satisfaction with social roles, and the Planned Activity scale was associated with fewer depressive symptoms. The Alternating Activity scale increased significantly from pretreatment to posttreatment. All goal scales were positively associated with all behavior scales. The Feel Less Pain goal scale was positively associated with measures of avoidance and pain interference, while the Get More Done goal scale was negatively associated with measures of depressive symptoms and overdoing.DiscussionThe findings support the reliability and validity of the AMI-P scales, while also highlighting the complexity and multidimensional aspects of activity management.Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.

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