An interventional study of Non-invasive Steam-warm Acupoint Stimulation and Non-invasive Pressure Acupoint Stimulation in Qi Stagnation Constitution and Acupoints, sponsored by ChinaNorm. Not yet recruiting at 1 site in China. Open to female participants aged 20 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-02.
Sponsored by ChinaNorm · Not applicable, Interventional, and Prevention
This is a randomized, placebo-controlled trial with a cross-over component. It investigates the effect of non-invasive acupoint stimulation on stress in young and middle-aged women. A total of 90 participants will be enrolled: 60 with a Liver-Qi Stagnation constitution and high perceived stress, and 30 without this constitution as a non-intervention baseline control. The 60 participants with the target constitution will be randomized into two groups. One group (n=30) will undergo a cross-over intervention, sequentially receiving steam-warm acupressure and simple acupressure (at five acupoints) in a randomized order, separated by a washout period. The other group (n=30) will receive placebo stimulation. The primary outcome is the change in the Perceived Stress Scale (PSS-14) score. Secondary outcomes include physiological stress responses.
For the experimental group (Qi Yu constitution group):
Diagnosis by a qualified TCM physician according to standard procedures, confirming characteristics of Qi Yu constitution, including (physical symptoms partially required):
For the control group (non-Qi Yu constitution group):
Exclusion Criteria:
Non-invasive acupoint stimulation
Other: Non-invasive Steam-warm Acupoint Stimulation · Other: Non-invasive Pressure Acupoint Stimulation
Other: Placebo Acupoint Stimulation
Participants will use a self-use device to apply steam-warm acupoint stimulation at five acupoints (GV20/Baihui, PC6/Neiguan, LI4/Hegu, SP6/Sanyinjiao, LR3/Taichong). The device consists of a main body (Part A) containing a heating element and high-hardness non-woven protrusions, secured by a adjustable strap (Part B). Stimulation is applied for 20 minutes per session, 3 times per week.
Participants will use a self-use device to apply pressure-only acupoint stimulation at the same five acupoints as above. The device is visually similar to the steam-warm device but Part A contains a non-heating, shaped hard sheet and high-hardness non-woven protrusions. It is secured by the same adjustable strap (Part B). Stimulation is applied for 20 minutes per session, 3 times per week.
Participants will use a self-use device designed to mimic the active intervention devices in appearance. The device's Part A contains a non-heating, shaped hard sheet and low-hardness non-woven protrusions that deliver minimal pressure, secured by the same adjustable strap (Part B). It is applied to the same five acupoints for 20 minutes per session, 3 times per week.
Change in Perceived Stress Scale (PSS-14) Score
Time frame: From Baseline (Visit 1) to the end of each 4-week intervention phase (Visit 2 and, for the crossover group, Visit 4).
Change in Heart Rate Variability (HRV) Parameters during Acute Stress
Time frame: During each standardized acute stress task (MIST) conducted at Baseline (Week 0), after the first 4-week intervention (Week 4), and after the second 4-week intervention (Week 11, for the crossover group).
Change in Psychophysiological Response to the Montreal Imaging Stress Task (MIST)
Time frame: During each standardized acute stress task (MIST) conducted at Baseline (Week 0), after the first 4-week intervention (Week 4), and after the second 4-week intervention (Week 11, for the crossover group).
Change in Salivary Cortisol and 3-Methoxy-4-hydroxyphenylglycol (MHPG) Levels during Acute Stress
Time frame: Saliva samples are collected at multiple timepoints (T0, T15, T20, T25, T30 minutes) during each standardized acute stress task (MIST) conducted at Baseline (Week 0), after the first 4-week intervention (Week 4), and after the second 4-week intervention.
Change in Medial Prefrontal Cortex (mPFC) Activation during Acute Stress measured by fNIRS
Time frame: During each standardized acute stress task (MIST) conducted at Baseline (Week 0), after the first 4-week intervention (Week 4), and after the second 4-week intervention (Week 11, for the crossover group).
Change in Subjective Pressure Level measured by Visual Analogue Scale (VAS)
Time frame: Assessed at multiple time points during each standardized acute stress task (MIST) conducted at Baseline (Week 0), after the first 4-week intervention (Week 4), and after the second 4-week intervention (Week 11, for the crossover group).
Change in Sleep Quality measured by Pittsburgh Sleep Quality Index (PSQI)
Time frame: At Baseline (Week 0), after the first 4-week intervention (Week 4), after the 3-week washout (Week 7), and after the second 4-week intervention (Week 11, for the crossover group).
Change in Depression Symptoms measured by Self-Rating Depression Scale (SDS)
Time frame: At Baseline (Week 0), after the first 4-week intervention (Week 4), after the 3-week washout (Week 7), and after the second 4-week intervention (Week 11, for the crossover group).
Change in Self-Rating Anxiety Scale (SAS) Score
Time frame: From Baseline (Week 0) to the end of the first 4-week intervention (Week 4), and for the crossover group also to the end of the second 4-week intervention (Week 11). Also assessed after the 3-week washout (Week 7).
Change in Sub-Health Measurement Scale Version 1.0 (SHMS V1.0) Score
Time frame: From Baseline (Week 0) to the end of the first 4-week intervention (Week 4), and for the crossover group also to the end of the second 4-week intervention (Week 11). Also assessed after the 3-week washout (Week 7).
Change in Health Status Questionnaire (Qi Yu Constitution) Score
Time frame: From Baseline (Week 0) to the end of the first 4-week intervention (Week 4), and for the crossover group also to the end of the second 4-week intervention (Week 11). Also assessed after the 3-week washout (Week 7).
Change in University of California, Los Angeles Loneliness Scale (UCLA) Score
Time frame: From Baseline (Week 0) to the end of the first 4-week intervention (Week 4), and for the crossover group also to the end of the second 4-week intervention (Week 11). Also assessed after the 3-week washout (Week 7).
Plan to share: No
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