UMIN-ICDS Clinical Trial
| Unique ID issued by UMIN | UMIN000063176 |
|---|---|
| Receipt number | R000072302 |
| Scientific Title | Effects of bilateral parietal transcranial alternating current stimulation on postural control under different sensory conditions |
| Date of disclosure of the study information | 2026/10/05 |
| Last modified on | 2026/10/05 13:08:26 |
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Basic information
Public title
Effects of transcranial alternating current stimulation over the postural control on postural control
Acronym
Parietal tACS and postural control
Scientific Title
Effects of bilateral parietal transcranial alternating current stimulation on postural control under different sensory conditions
Scientific Title:Acronym
Bilateral parietal tACS and postural control
Region
| Japan |
Condition
Condition
healthy young adults
Classification by specialty
| Not applicable | Adult |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
To investigate the contribution of frequency-specific neural oscillations in the parietal cortex to postural control.
Basic objectives2
Others
Basic objectives -Others
Neurophysiological investigation of the contribution of parietal neural oscillations to postural control
Trial characteristics_1
Trial characteristics_2
Developmental phase
Assessment
Primary outcomes
Changes in postural control assessed by posturography before and after tACS.
Key secondary outcomes
Base
Study type
Interventional
Study design
Basic design
Cross-over
Randomization
Randomized
Randomization unit
Individual
Blinding
Double blind -all involved are blinded
Control
Placebo
Stratification
NO
Dynamic allocation
NO
Institution consideration
Institution is not considered as adjustment factor.
Blocking
NO
Concealment
No need to know
Intervention
No. of arms
4
Purpose of intervention
Treatment
Type of intervention
| Device,equipment |
Interventions/Control_1
Bilateral parietal tACS sham, 1 mA peak-to-peak (0.5 mA amplitude), ramped down 30 s after onset.
Interventions/Control_2
Bilateral parietal 10-Hz tACS, 1 mA peak-to-peak (0.5 mA amplitude), 20 min.
Interventions/Control_3
Bilateral parietal 20-Hz tACS, 1 mA peak-to-peak (0.5 mA amplitude), 20 min.
Interventions/Control_4
Bilateral parietal 40-Hz tACS, 1 mA peak-to-peak (0.5 mA amplitude), 20 min.
Interventions/Control_5
Interventions/Control_6
Interventions/Control_7
Interventions/Control_8
Interventions/Control_9
Interventions/Control_10
Eligibility
Age-lower limit
| 18 | years-old | <= |
Age-upper limit
| 39 | years-old | >= |
Gender
Male and Female
Key inclusion criteria
Healthy right-handed young adults.
Key exclusion criteria
Individuals with a history of neurological or orthopedic disorders, or other medical conditions that may affect participation in the study.
Target sample size
20
Research contact person
Name of lead principal investigator
| 1st name | Shinichiro |
| Middle name | |
| Last name | Oka |
Organization
Reiwa Health Sciences University
Division name
School of Physical Therapy, Faclty of Rehabilitation
Zip code
811-0213
Address
2-1-12, Wajirogaoka, Fukuoka-shi, Higasi-ku, Fukuoka, Japan
TEL
0926076701
s.oka@kyoju.ac.jp
Public contact
Name of contact person
| 1st name | Shinichiro |
| Middle name | |
| Last name | Oka |
Organization
Reiwa Health Sciences University
Division name
School of Physical Therapy, Faclty of Rehabilitation
Zip code
811-0213
Address
2-1-12, Wajirogaoka, Fukuoka-shi, Higasi-ku, Fukuoka, Japan
TEL
0926076701
Homepage URL
s.oka@kyoju.ac.jp
Sponsor or person
Institute
International University of Health and Welfare
Institute
Department
Personal name
Funding Source
Organization
Japan Society for the Promotion of Science
Organization
Division
Category of Funding Organization
Japanese Governmental office
Nationality of Funding Organization
Japan
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
International University of Health and Welfare at Okawa
Address
137-1, enokizu, okawa, Fukuoka, Japan
Tel
0944-89-2031
q-rinri@iuhw.ac.jp
Secondary IDs
Secondary IDs
NO
Study ID_1
Org. issuing International ID_1
Study ID_2
Org. issuing International ID_2
IND to MHLW
Institutions
Institutions
Other administrative information
Date of disclosure of the study information
| 2026 | Year | 10 | Month | 05 | Day |
Related information
URL releasing protocol
Not publicly available
Publication of results
Unpublished
Result
URL related to results and publications
Not publicly available
Number of participants that the trial has enrolled
10
Results
The effects of bilateral parietal tACS on postural control differed depending on stimulation frequency and sensory condition. Twenty-Hz tACS significantly reduced anteroposterior postural sway during the eyes-closed foam condition and postural sway during the eyes-closed head-shaking-on-foam condition, whereas 40-Hz tACS significantly increased anteroposterior postural sway during the eyes-closed foam condition.
Results date posted
| 2026 | Year | 10 | Month | 05 | Day |
Results Delayed
Results Delay Reason
Date of the first journal publication of results
Baseline Characteristics
Ten right-handed healthy young adults
Participant flow
Ten participants were enrolled. All participants completed the four stimulation conditions (sham, 10 Hz, 20 Hz, and 40 Hz) in a randomized order and were included in the analysis.
Adverse events
None
Outcome measures
Total sway path length (SPL), anteroposterior sway path length (AP-SPL), and mediolateral sway path length (ML-SPL).
Plan to share IPD
Individual participant data will not be shared.
IPD sharing Plan description
Not applicable.
Progress
Recruitment status
No longer recruiting
Date of protocol fixation
| 2017 | Year | 04 | Month | 14 | Day |
Date of IRB
| 2017 | Year | 04 | Month | 25 | Day |
Anticipated trial start date
| 2019 | Year | 12 | Month | 07 | Day |
Last follow-up date
| 2020 | Year | 01 | Month | 31 | Day |
Date of closure to data entry
| 2020 | Year | 03 | Month | 04 | Day |
Date trial data considered complete
| 2020 | Year | 11 | Month | 13 | Day |
Date analysis concluded
| 2026 | Year | 09 | Month | 28 | Day |
Other
Other related information
Management information
Registered date
| 2026 | Year | 10 | Month | 05 | Day |
Last modified on
| 2026 | Year | 10 | Month | 05 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072302
