- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03002337
Efficacy of the Yoga and Aromatherapy on Salivary Hormone and Immune Function in Pregnant Women.
Yoga and Aromatherapy on Salivary Hormone and Immune Function in Pregnant Women.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This longitudinal, prospective, randomized controlled trial recruited 75 healthy pregnant women from a prenatal clinic in Taipei using convenience sampling. The participants were randomly assigned to the aromatherapy group (n=25), yoga group (n=25) or control (n=25) group using Clinstat block randomization.
The aromatherapy group received 70 minutes of aromatherapy massage once biweekly for 20 weeks; the yoga group participated in two weekly 70-minute yoga sessions led by a midwife certified as a yoga instructor for 20 weeks; the control group received only routine prenatal care. All participants' salivary cortisol and immunoglobulin A levels were collected before and after yoga or aromatherapy every 4 weeks from 16 to 36 weeks' gestation.
To collect a sufficient quantity of saliva, we used Salivette® cotton swabs (Salimetrics, State College, PA, USA), which were stored in double-layer plastic tubes with a lid. When participants chew a swab for about 2 to 3 minutes, saliva flow is stimulated to a sufficient amount (1 mL) for collection. After the tube was centrifuged at 1000 x g for 2 minutes, saliva was stored at -80°C until assay for salivary cortisol and IgA concentrations.
Cortisol was measured using a competitive enzyme-linked immunoassay (ELISA) kit (Cayman Chemical Company, USA), and salivary IgA was measured using double-antibody sandwich ELISA method per the manufacturer's instruction (ICL, Inc., USA).
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Normal pregnancy
- Age 20-45 years
- Agreed to follow-up collections of saliva samples
- Could read and write Chinese
Exclusion Criteria:
- Oral steroid use
- History of severe illness (e.g., heart disease, systemic lupus erythaematosus, metabolic disorders) or depression.
- Drug use (prescribed or illicit).
- High-risk pregnancy (i.e., first-trimester vaginal bleeding, artificially insemination, multiple gestations, foetal growth restriction or other abnormalities).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Allocation: Randomized
- Interventional Model: Factorial Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Aromatherapy massage
Ten aromatherapy group received 70 minutes of aromatherapy massage once biweekly by certified aromatherapy therapist for 20 weeks.
|
All of the participants in the aromatherapy group underwent aromatherapy massage for 70 minutes every two weeks between 16 to 36 weeks GA (ten sessions total).
The aromatic massage oils were composed of 2 c.c. lavender (Lavandula angustifolia) blended with 98 c.c. almond oil.
This concentration of the mixed essential oil was kept at room temperature for massage use.
|
Experimental: Yoga exercise
The yoga group participated in two weekly 70-minute yoga sessions led by a midwife certified as a yoga instructor for 20 weeks
|
Prenatal yoga was offered in six 70-minute yoga sessions per week for 20 weeks, with 10-12 women in each session.
Each participant should attend two sessions of yoga every two days, held in a quiet room near the prenatal clinic.
Yoga specifically designed for women during the second and third trimesters, was guided by a midwife who was certified as a yoga instructor.
Yoga included physical postures/ stretch, deep breathing, guided imagery, and deep relaxation.
Before each posture/stretch, the instructor guided participants to relax each body part and calm their mind.
|
No Intervention: Control
the control group received only routine prenatal care.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Physiological parameter (salivary cortisol)
Time Frame: 20 weeks
|
This study used salivary cortisol as the indicator of stress.
To assess stress in this study, the concentrations of cortisol (μg/dL) in saliva samples were analysed and was measured using a competitive enzyme-linked immunoassay (ELISA) kit (Cayman Chemical, Ann Arbor, USA).
The participants' salivary cortisol levels were collected before and after the intervention group received aromatherapy massage (every month from 16 to 36 weeks gestation).
|
20 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Physiological parameter (salivary IgA)
Time Frame: 20 weeks
|
This study used salivary IgA as the indicator of immune function.
To assess immune function in this study, the concentrations of IgA (μg/mL) in saliva samples were analysed and was measured using the double-antibody sandwich ELISA method according to the manufacturer's instructions (ICL, Inc., USA).
The participants' salivary immunoglobulin A levels were collected before and after the intervention group received aromatherapy massage (every month from 16 to 36 weeks gestation).
|
20 weeks
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2-102-05-148
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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