ArticleJournal of athletic training2025
Association Between Neural Plasticity and Pain-Related Fear in Chronic Ankle Instability: A Structural Neuroimaging Study.
Article in Journal of athletic training, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Characteristics of ankle kinematics in patients with ankle instability with or without an osteochondral lesion of the talus.Frontiers in sports and active living · 2025Article
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9 authors.
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Abstract
contextPain-related movement fear is a contributing factor to residual pain and functional deficits in chronic ankle instability (CAI), but its underlying neural mechanisms remain unclear.
objectiveWe aimed to (1) delineate whether participants with CAI exhibit discernible differences in specific emotion- and pain-related brain regions compared with a healthy control (HC) cohort and (2) explore potential neural mechanisms underlying pain and fear in participants with CAI, with an emphasis on investigating possible associations with pain-related neural plasticity.
designCross-sectional study.
settingUniversity research laboratory. PATIENTS OR OTHER
participantsTwenty-eight participants with CAI (17 men and 11 women; age = 31.28 ± 6.31 years) and 28 HCs (16 men and 12 women; age = 30.18 ± 7.59 years). MAIN OUTCOME MEASURE(S): We analyzed T1 structural imaging data from participants and assessed their fear of movement and pain intensity using the Tampa Scale of Kinesiophobia (TSK) and the visual analog scale (VAS) for pain, respectively. We compared the mean gray matter (GM) density of pain-related area between the 2 groups and their correlations with the TSK and VAS scores.
resultsIn comparison with the HC group, participants with CAI showed a significant decrease in the mean GM density in the prefrontal cortex (PFC) (Cohen d = -0.808) and periaqueductal gray (PAG) (Cohen d = -0.934). In participants with CAI, the mean GM density of the PFC was negatively correlated with TSK scores (r = -0.531). During intense exercise, the mean GM density of the PAG was negatively correlated with VAS scores (r = -0.484). Additionally, TSK scores were positively correlated with VAS scores (r = 0.455).
conclusionsOur exploratory findings suggest that, in participants with CAI, the atrophy of the PFC and PAG may be associated with pain-related fear. In future clinical diagnosis and treatment for CAI, practitioners should consider the impact of psychological barriers on functional recovery.
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