Chronic pain is one of the main factors influencing workers' retention at work. Considering that the prevalence of suffering from chronic pain increases with age, older workers are most likely to be absent from work because of their pain. Transcranial direct current stimulation (tDCS) is a treatment option to reduce chronic pain. This study aims to document the effect of tDCS on pain and work retention in older workers and to compare the traditional tDCS protocol (5 sessions) with an enhanced protocol (11 sessions).
Chronic pain affects many spheres of the lives of affected individuals and those around them. In Canada, the prevalence of chronic pain is estimated at 15% of adults aged 18 and over. Among seniors, the prevalence of this health problem can reach up to 50% and affect one in two seniors. Chronic pain is one of the leading causes of work disability. In this context, pain reduction remains one of the most effective methods to enable the worker to stay at work. Considering the aging Quebec population, labor needs and the average retirement age which is increasingly postponed, it becomes crucial to take an interest in aging workers and their continued employment. Transcranial direct current stimulation (tDCS) is a non-invasive neurostimulation method that has shown promise in reducing chronic pain. Recently, several research teams have shown that tDCS has beneficial effects on pain, physical function and social participation in seniors. Despite all these recent advances, very few studies have focused on optimizing tDCS treatment modalities and no studies have focused on the impact of tDCS on return to work or retention. The vast majority of studies using tDCS to reduce pain give one tDCS session per day for 5 consecutive days. This study aims to document the effect of tDCS on pain and work retention in older workers and to compare the traditional tDCS protocol (5 sessions) with an enhanced protocol (11 sessions).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Anodal, 2mA, tDCS session applied on M1 for 20 minutes.
Clinique régionale de la gestion de la douleur - CISSSAT
Rouyn-Noranda, Quebec, Canada
RECRUITINGCentre de Recherche sur le Vieillissement
Sherbrooke, Quebec, Canada
ACTIVE_NOT_RECRUITINGPain intensity
0-10 Numerical rating scale
Time frame: Before tDCS
Pain intensity
0-10 Numerical rating scale
Time frame: 1 week
Pain intensity
0-10 Numerical rating scale
Time frame: 4 weeks
Pain intensity
0-10 Numerical rating scale
Time frame: 4 weeks after the last tDCS session
Disability
Pain Disability Index
Time frame: Before tDCS
Disability
Pain Disability Index
Time frame: 1 week
Disability
Pain Disability Index
Time frame: 4 weeks
Disability
Pain Disability Index
Time frame: 4 weeks after the last tDCS session
Work role functioning
Work Role Functioning Questionnaire
Time frame: Before tDCS
Work role functioning
Work Role Functioning Questionnaire
Time frame: 1 week
Work role functioning
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Enrollment
24
Work Role Functioning Questionnaire
Time frame: 4 weeks
Work role functioning
Work Role Functioning Questionnaire
Time frame: 4 weeks after the last tDCS session
Physical Functioning
Brief Pain Inventory
Time frame: Before tDCS
Physical Functioning
Brief Pain Inventory
Time frame: 1 week
Physical Functioning
Brief Pain Inventory
Time frame: 4 weeks
Physical Functioning
Brief Pain Inventory
Time frame: 4 weeks after the last tDCS session
Anxiety
Beck anxiety inventory
Time frame: Before tDCS
Anxiety
Beck anxiety inventory
Time frame: 1 week
Anxiety
Beck anxiety inventory
Time frame: 4 weeks
Anxiety
Beck anxiety inventory
Time frame: 4 weeks after the last tDCS session
Depression
Beck depression inventory
Time frame: Before tDCS
Depression
Beck depression inventory
Time frame: 1 week
Depression
Beck depression inventory
Time frame: 4 weeks
Depression
Beck depression inventory
Time frame: 4 weeks after the last tDCS session
Impression of change
Patient Global impression of change
Time frame: 1 week
Impression of change
Patient Global impression of change
Time frame: 4 weeks
Impression of change
Patient Global impression of change
Time frame: 4 weeks after the last tDCS session
Central sensitization
central sensitization inventory
Time frame: Before tDCS
Central sensitization
central sensitization inventory
Time frame: 1 week
Central sensitization
central sensitization inventory
Time frame: 4 weeks
Central sensitization
central sensitization inventory
Time frame: 4 weeks after the last tDCS session
Recruitment
Feasibility of the study
Time frame: through study completion, about 2 years
Security
Feasibility of the study
Time frame: through study completion, about 2 years
Intervention
Feasibility of the study
Time frame: through study completion, about 2 years