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Effect of inhalation aromatherapy with Japanese essential oil during bedtime on worker's subjective sleep quality, daytime sleepiness, and fatigue

Effect of inhalation aromatherapy with Japanese essential oil during bedtime on worker's subjective sleep quality, daytime sleepiness, and fatigue

Status
Recruiting
Phases
Early Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1050230170
Enrollment
20
Registered
2024-01-26
Start date
2024-01-26
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Improvement of sleep quality the quality of sleep

Interventions

We set control and intervention conditions and conduct a crossover trial. The control condition: Participants sleep wearing an inhalation patch with distilled water (0.05-0.1mL) on their chest every n
D019341
aromatherapy

Sponsors

Shinohara Yasushi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Healthy individuals aged 30 to 65 who work full-time during the daytime on weekdays.

Exclusion criteria

Exclusion criteria: Individuals who have subjective symptoms or treatments such as Narcolepsy, idiopathic hypersomnia, Kleine Levin Syndrome, circadian rhythm sleep disorder, sleep apnea syndrome, restless legs syndrome, periodic limb movement disorder, somnambulism, sleep terrors, REM sleep behavior disorder, mental illness, other sleep-disturbing symptoms, olfactory disorders and plant allergies. Those who take sleeping pills and/or prescription drugs that cannot be used with aromatherapy. Those who are pregnant or breastfeeding. Those who may be pregnant. Those who have been aware of mental and/or physical abnormalities due to aromatherapy. Those who dislike the scent of kuromoji (Lindera umbellata) essential oil.

Design outcomes

Primary

MeasureTime frame
The measurements are subjective feeling of sleep, daytime sleepiness, and fatigue. Questionnaires such as OSA sleep inventory MA version, Japanese version of the Epworth Sleepiness Scale, and Jikaku-sho shirabe that is a questionnaire to assess fatigue are used.

Secondary

MeasureTime frame
The following questions are asked to understand the attributes of the research subjects and gather information on their aromatic bath habits and impressions on the scent of kuromoji (Lindera umbellata) essential oil. Before intervention Age, sex, past medical history, the presence of taking sleep medicine, the type of medicine, the presence of pregnancy and/or breastfeeding, the presence of experience and/or habits of aromatherapy, the presence of experience of mental and/or physical abnormalities due to aromatherapy, sleep duration on weekdays, subjective sleep quality, and any additional comments or concerns. After intervention Participant's impressions of the scent of kuromoji (Lindera umbellata) essential oil and any additional comments or concerns.

Contacts

Public ContactYasushi Shinohara

BIwako-Kusatsu Campus, Ritsumeikan University

ysr15159@fc.ritsumei.ac.jp+81-77-599-4130

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026