Unique ID issued by UMIN | UMIN000019409 |
---|---|
Receipt number | R000022448 |
Scientific Title | Relationship of laughter with mood/emotion and cortisol and dehydroepiandrosterone (DHEA) secretion: intervention study |
Date of disclosure of the study information | 2015/10/28 |
Last modified on | 2018/04/21 10:15:45 |
Relationship of laughter with mood/emotion and cortisol and dehydroepiandrosterone (DHEA) secretion: intervention study
Laughter, mood/emotion, and cortisol/DHEA
Relationship of laughter with mood/emotion and cortisol and dehydroepiandrosterone (DHEA) secretion: intervention study
Laughter, mood/emotion, and cortisol/DHEA
Japan |
N/A (healthy people)
Not applicable | Adult |
Others
NO
To examine whether spontaneous and simulated laughter alters mood/emotion and secretion of cortisol and DHEA
Efficacy
Mood/emotion (tension, depression, anger, vitality, fatigue, and confusion) and salivary cortisol and DHEA right before, right after, and 30 minutes after the intervention
Interventional
Parallel
Randomized
Individual
Open -no one is blinded
No treatment
3
Prevention
Behavior,custom |
Spontaneous laughter: watching a comedy movie "The Dictator" for the first 40 minutes, a single-time exposure in a day, not repetitive.
Simulated laughter: laughter yoga, a 40-minute practice, a single-time exposure in a day, not repetitive.
Reading books on food safety an English language (control group): for consective 40 minutes, a single-time exposure in a day, not repetitive.
Not applicable |
Not applicable |
Male and Female
3rd-year medical student of Fujita Health University School of Medicine
1. Pregnancy
2. Taking medicine that could affects cortisol/DHEA secretion, such as estrogen, oral contraceptive, antipsychotic, and antidepressant
120
1st name | |
Middle name | |
Last name | Atsuhiko Ota |
Fujita Health University School of Medicine
Department of Public Health
1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
0562-93-2453
ohtaa@fujita-hu.ac.jp
1st name | |
Middle name | |
Last name | Atsuhiko Ota |
Fujita Health University School of Medicine
Department of Public Healt
1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
0562-93-2453
ohtaa@fujita-hu.ac.jp
Department of Public Health, Fujita Health University School of Medicine
Fujita Health University
Other
Japan
NO
藤田保健衛生大学医学部(愛知県)
2015 | Year | 10 | Month | 28 | Day |
Published
https://doi.org/10.1016/j.ctcp.2018.04.005
Fujisawa A, Ota A, Matsunaga M, Li Y, Kakizaki M, Naito H, Yatsuya H. Effect of laughter yoga on salivary cortisol and dehydroepiandrosterone among healthy university students: A randomized controlled trial. Complementary Therapies in Clinical Practice 2018 (in press)
Objective: To examine whether laughter yoga (LY), i.e., simulated laughter, alters cortisol and dehydroepiandrosterone (DHEA) levels and cortisol/DHEA (C/D) ratios.
Methods: In a randomized controlled trial, 120 healthy university students were allocated to experiencing LY, watching a comedy movie (spontaneous laughter), or reading a book. Salivary cortisol and DHEA levels were measured immediately before, immediately after, and 30?min after the intervention.
Results: Cortisol levels and C/D ratios significantly decreased by time in the LY and comedy movie groups. Significant group*time interactions were found between these two groups for cortisol levels and C/D ratios. DHEA levels did not change by time in the LY group.
Conclusions: LY decreased cortisol levels and C/D ratios but did not affect DHEA levels. Simulated and spontaneous laughter differently affected the dynamics of cortisol levels and C/D ratios. Effect of spontaneous laughter on the cortisol dynamics lasted longer than that of simulated laughter.
Main results already published
2015 | Year | 10 | Month | 28 | Day |
2015 | Year | 10 | Month | 28 | Day |
2015 | Year | 12 | Month | 16 | Day |
2016 | Year | 02 | Month | 17 | Day |
2016 | Year | 02 | Month | 17 | Day |
2016 | Year | 12 | Month | 31 | Day |
2015 | Year | 10 | Month | 19 | Day |
2018 | Year | 04 | Month | 21 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000022448