Assessing the Psychometric Properties of an Activity Pacing Questionnaire for Chronic Pain and Fatigue.
Antcliff, Deborah, Campbell, Malcolm, Woby, Steve et al. · Physical therapy · 2015 · DOI
Quick Summary
This study tested a questionnaire designed to measure how well people with chronic fatigue and pain pace their activities—meaning how they balance rest and activity throughout the day. Researchers simplified the original 38-question survey down to 26 questions and identified five different ways people try to pace themselves: adjusting activities, keeping activities consistent, gradually increasing activities, planning activities, and accepting limitations. The questionnaire was found to be reliable and useful for measuring pacing strategies.
Why It Matters
For ME/CFS patients, reliable measurement of pacing strategies is critical since activity pacing is frequently recommended but poorly understood. This validated questionnaire provides researchers and clinicians with a standardized tool to assess different pacing approaches and potentially identify which strategies are most beneficial—essential information for personalizing treatment recommendations in ME/CFS management.
Observed Findings
Five distinct pacing themes were identified: activity adjustment, activity consistency, activity progression, activity planning, and activity acceptance.
Activity consistency correlated with improved symptoms, while activity adjustment, progression, and acceptance correlated with worsened symptoms.
The APQ-26 demonstrated test-retest reliability (ICC=0.50–0.78) and internal consistency (Cronbach α=0.72–0.92).
Activity planning showed complex relationships, correlating with both improved and worsened symptoms.
Inferred Conclusions
The APQ-26 is a reliable, valid, and multifaceted tool suitable for measuring activity pacing across heterogeneous groups with chronic pain or fatigue.
Different pacing approaches have distinct correlations with symptom outcomes, suggesting pacing is not a unitary construct.
Therapists may benefit from tailoring pacing advice to specific themes rather than recommending pacing globally.
Future research should investigate causal mechanisms and identify which pacing themes produce genuine symptom benefit.
Remaining Questions
Do the observed correlations between pacing themes and symptoms represent causal relationships, or do they reflect confounding factors?
What This Study Does Not Prove
This study does not prove that any pacing strategy actually causes symptom improvement or worsening; it only identifies statistical correlations. It also does not determine whether different pacing themes are effective treatments—further intervention studies are needed to establish causation. The findings are based solely on patient self-report and may not reflect actual pacing behaviors or objective outcomes.
Tags
Symptom:PainFatigue
Method Flag:Weak Case DefinitionExploratory OnlyMixed Cohort