Healthy
Conditions
Brief summary
Placebo responses are now recognized for their clinical and physiological significance. Non-pharmacological cues such as sound may enhance or induce these responses. This trial aims to assess the effect of sound on the placebo-induced hypoalgesia elicited by a deactivated TENS device in healthy individuals.
Interventions
Deactivated TENS with beeping sound (15-second interval)
Deactivated TENS without sound
Sponsors
Study design
Masking description
Participant and assessor blinded
Intervention model description
A healthy volunteer pilot study.
Eligibility
Inclusion criteria
* No history of TENS use
Exclusion criteria
* Current medication use * Orthopedic, neurological, or systemic conditions * Pregnancy (current and planned)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in pain pressure threshold (PPT) at L2 (lumbar spine) from baseline to post-intervention. | From Baseliine to 5 minutes | Change in pain pressure threshold (PPT) at L2 (2nd lumbar vertebra) from baseline to post-intervention. Measured using pressure algometer (Wagner Force Dial FDK/FDN Series). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Effect of gender on placebo response | From Baseliine to 5 minutes | Effect of gender on placebo response (ANOVA analysis on post-treatment PPT) |