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Transcranial Direct Current Stimulation Over Dorsolateral Prefrontal Cortex Improves Postural Stability in Non-specific Chronic Low Back Pain Patients with High Fear of Pain: A Randomized Sham-controlled Trial
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Mona Masoudi   , Fatemeh Ehsani , Rozita Hedayati , Shapour Jaberzadeh |
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Abstract: (284 Views) |
Introduction: Deficits in postural stability in response to environmental challenges are seen in Chronic Low Back Pain (CLBP) patients with High Fear of Pain (HFP). Hence, it is essential to follow effective approaches to treat postural stability deficits and improve the health status of these patients. The current study aimed to compare the effects of cathodal and anodal transcranial direct current stimuation (c-tDCS and a-tDCS) over left dorsolateral prefrontal cortex (DLPFC) on postural stability in non-specific CLBP patients with HFP.
Methods and Materials: In this randomized clinical trial study, 75 patients were randomly assigned to left DLPFC a-tDCS, left DLPFC c-tDCS, and sham stimulation groups (n=25 in each group). All groups received a single-session 2 mA tDCS for 20 minutes, but the stimulation was slowly turned off after 30 seconds in the sham group. Before, immediately, 24 hours, and one week after the interventions, postural stability indices were assessed using a Biodex Balance System.
Results: A significant reduction in most indices was shown in both a-tDCS and c-tDCS groups after interventions (immediately, 24 hours, and one week follow up) during static and dynamic postural tasks compared to the sham tDCS group (P<0.01). In addition, some tests showed a significant difference between a-tDCS and c-tDCS (P<0.05).
Conclusion: The findings indicated positive effects of both a-tDCS and c-tDCS of left DLPFC, with more efficacy of a-tDCS on postural stability in LBP patients with HFP.
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| Keywords: Chronic Low Back Pain, Fear of Pain, Transcranial Direct Current Stimulation, Dorsolateral Prefrontal Cortex, Postural Stability |
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Full-Text [PDF 266 kb]
(45 Downloads)
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Type of Study: Research |
Subject:
General
Received: 2024/01/14 | Accepted: 2023/08/23 | Published: 2023/08/23
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