A total of @ adults with FM ( mean age @ years , @ % women ) who were enrolled in a randomized clinical trial wore a hip-mounted accelerometer for @ week and completed self-report measures of physical function ( Fibromyalgia Impact Questionnaire-Physical Impairment -LSB- FIQ-PI -RSB- , Short Form @ -LSB- SF-@ -RSB- health survey physical component score -LSB- PCS -RSB- , pain intensity and interference ( Brief Pain Inventory -LSB- BPI -RSB- ) , and depressive symptoms ( Patient Health Questionnaire-@ -LSB- PHQ-@ -RSB- ) as part of their baseline and followup assessments .