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Effect of Essential Oils in Aromatherapy on Emotional Relaxation

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01443871
First Posted: September 30, 2011
Last Update Posted: May 27, 2015
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Surasak Saokaew, University of Phayao
  Purpose
The purpose of this study is to examine and compare electroencephalography (EEG) changes in human subjects directly after inhalation of essential oils from five Thai aromatherapies. The investigators hypothesize that essential oils from Thai aromatherapies may influence the human EEG involving emotional relaxation particularly alpha wave EEG.

Condition Intervention
Healthy Other: Aromatherapy Other: Pure water

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Official Title: Effect of Essential Oils in Aromatherapy on Emotional Relaxation

Further study details as provided by Surasak Saokaew, University of Phayao:

Primary Outcome Measures:
  • electroencephalography (EEG) changes [ Time Frame: baseline, 10 minutes ]
    The EEG was assessed for 10 minutes in each period; baseline, during and after inhaled the essential oil


Enrollment: 48
Study Start Date: September 2011
Study Completion Date: December 2014
Primary Completion Date: December 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Aromatherapy
Experimental procedures were conducted in the morning. Subjects individually entered the closed room where the temperature was kept at 25-26 oC and humidity 50-60%. The subjects were blinded using mask and were seated comfortably with eyes closed during experimental period. The EEG was recorded using silver electrodes. EEG activity was monitored 4 areas (F7, F8, T3 and T4) and ground electrodes. The experiments were divided into 3 parts. The first part, no-odor were recorded EEG activity for 10 minutes as a baseline. The second part, subject was exposure to the odor for 10 minutes as during inhalation. The last part, the odor was dispersed and assessed EEG activity for 10 minutes as after inhalation.
Other: Aromatherapy
Subject will assigned inhale aromatherapy
Placebo Comparator: Pure water
Experimental procedures were conducted in the morning. Subjects individually entered the closed room where the temperature was kept at 25-26 oC and humidity 50-60%. The subjects were blinded using mask and were seated comfortably with eyes closed during experimental period. The EEG was recorded using silver electrodes. EEG activity was monitored 4 areas (F7, F8, T3 and T4) and ground electrodes. The experiments were divided into 3 parts. The first part, no-odor were recorded EEG activity for 10 minutes as a baseline. The second part, subject was exposure to the water for 10 minutes as during inhalation. The last part, the water was dispersed and assessed EEG activity for 10 minutes as after inhalation.
Other: Pure water
Subject will assigned inhale Pure water

Detailed Description:
The subjects consisted of 22 male and 26 female subjects , ages between 20 to 30 years (mean age, 23.3 years). They were screened for excessive nasal congestion, drug and food taken, and neurological disorders prior to participation in the experiment. The experiments were approved by the Ethical Committee for Research Involving Human Research Subject, Naresuan University. All subjects read and signed an informed consent before participation.
  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • > 18 years old

Exclusion Criteria:

  • excessive nasal congestion
  • neurological disorders prior to participation in the experiment
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01443871


Locations
Thailand
Surasak Saokaew
Muang, Phayao, Thailand, 56000
University of Phayao
Muang, Phayao, Thailand, 56000
Sponsors and Collaborators
University of Phayao
Investigators
Principal Investigator: Surasak Saokaew, PhD University of Phayao
  More Information

Responsible Party: Surasak Saokaew, Co-Principal Investigator, University of Phayao
ClinicalTrials.gov Identifier: NCT01443871     History of Changes
Other Study ID Numbers: WP-5102031
First Submitted: September 28, 2011
First Posted: September 30, 2011
Last Update Posted: May 27, 2015
Last Verified: May 2015

Keywords provided by Surasak Saokaew, University of Phayao:
Volunteer