Actigraphic Physical Activity, Pain Intensity, and Polysomnographic Sleep in Fibromyalgia.
Behav Sleep Med
; 21(4): 383-396, 2023.
Article
in En
| MEDLINE
| ID: mdl-35856908
ABSTRACT
INTRODUCTION:
Fibromyalgia involves chronic pain and disrupted physical activity and sleep. Research examining the relationship between pre-bedtime physical activity, pain, and objective sleep is limited. This study examined whether objectively measured physical activity levels (via actigraphy), pain intensity, or their interaction are associated with polysomnographic sleep outcomes.METHODS:
Adults with fibromyalgia and insomnia complaints (n = 134, mean age = 52 yrs, SD = 12 yrs, 94% female) completed 14 days of biaxial, wrist worn actigraphy, pain ratings, and a single night of polysomnography (PSG). Average activity for intervals 900-1200, 1200-1500, 1500-1800, 1800-2100 was computed. Multiple regressions examined whether average activity, average evening pain, or their interaction were associated with PSGoutcomes:
sleep onset latency (SOL), wake after sleep onset (WASO), sleep efficiency, %stage1, %stage2, %stage3, and %rapid eye movement. Analyses controlled for age, body mass index, average bedtime, time in bed, and sleep/pain medication use.RESULTS:
Greater morning actigraphic physical activity from 900 to 1200 was independently associated with greater %stage 1 sleep (B = 0.01, SE = 0.00, p < .01). Greater afternoon activity from 1200 to 1500 independently predicted a higher WASO (p < .001). Associations between afternoon physical activity from 1200 to 1500 and greater %stage 1 (p < .001) were significant for at higher (~71/100), average (~52/100), but not lowest (~32/100) pain.CONCLUSION:
Greater morning and afternoon activity is associated with greater PSG sleep fragmentation and greater %stage 1 sleep in individuals with fibromyalgia and insomnia complaints, and the relationship between higher physical activity and greater %stage 1 is stronger for individuals with higher pain. Further studies examining causal pathways between physical activity, activity pacing, and sleep are warranted in fibromyalgia.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Fibromyalgia
/
Chronic Pain
/
Sleep Initiation and Maintenance Disorders
Type of study:
Prognostic_studies
Limits:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Behav Sleep Med
Journal subject:
CIENCIAS DO COMPORTAMENTO
/
NEUROLOGIA
/
PSICOFISIOLOGIA
Year:
2023
Document type:
Article
Affiliation country:
Estados Unidos