UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000057352
Receipt number R000065549
Scientific Title Effects of forearm bathing on prefrontal cortex function
Date of disclosure of the study information 2025/05/01
Last modified on 2025/03/21 08:40:20

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Basic information

Public title

Effects of forearm bathing on prefrontal cortex function

Acronym

Effects of forearm bathing on prefrontal cortex function

Scientific Title

Effects of forearm bathing on prefrontal cortex function

Scientific Title:Acronym

Effects of forearm bathing on prefrontal cortex function

Region

Japan


Condition

Condition

Healthy people

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to clarify the effect of the hemodynamic activity of the prefrontal cortex by forearm bathing on the function of the prefrontal cortex.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Reaction time and response performance on the Stroop task, a frontal lobe functional task

Key secondary outcomes

Prefrontal cortex activity
Autonomic nerve activity


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

No treatment

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Pseudo-randomization


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Maneuver

Interventions/Control_1

1. Rest for 5 minutes
2. Stroop task
3. Rest for 5 minutes
4. Forearm bathing
Forearm bathing means that subjects immerse in bath water up to the elbow joint.
5. Stroop task during forearm bathing

After an interval of 7 to 10 days

6. Rest for 5 minutes
7. Stroop task
8. Rest for 5 minutes
9. Non-forearm bathing
Non-forearm bathing means that subjects place up to the elbow joint in a bathtub without hot water.
10. Stroop task during non-forearm bathing

Interventions/Control_2

1. Rest for 5 minutes
2. Stroop task
3. Rest for 5 minutes
4. Non-Forearm bathing
Non-forearm bathing means that subjects place up to the elbow joint in a bathtub without hot water.
5. Stroop task during non-forearm bathing

After an interval of 7 to 10 days

6. Rest for 5 minutes
7. Stroop task
8. Rest for 5 minutes
9. Forearm bathing
Forearm bathing means that subjects immerse in bath water up to the elbow joint.
10. Stroop task during forearm bathing

Interventions/Control_3


Interventions/Control_4


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

40 years-old >

Gender

Male and Female

Key inclusion criteria

The subjects of the study must satisfy all of the following conditions.
1. Able to participate in both forearm and non-forearm baths for two days
2. Right-handed
3. Have no abnormality on physical examination
4. No skin disease on the upper limbs

Key exclusion criteria

The following persons are excluded from the research subjects.
1. Persons with color blindness
2. Those who are in menstrual period on the day of measurement

Target sample size

25


Research contact person

Name of lead principal investigator

1st name Etsuro
Middle name
Last name Hori

Organization

University of Toyama

Division name

Behavioral Science, Graduate School of Medicine, University of Toyama

Zip code

930-0194

Address

2630 Sugitani, Toyama-shi, 930-0194, Japan

TEL

076-434-7480

Email

hori@med.u-toyama.ac.jp


Public contact

Name of contact person

1st name Chika
Middle name
Last name Yamazaki

Organization

Toyama Prefectural University

Division name

Faculty of Nursing

Zip code

930-0975

Address

2-2-78 Nishinagae, Toyama-shi, 930-0975 Japan

TEL

076-464-5410

Homepage URL


Email

c-yamazaki@pu-toyama.ac.jp


Sponsor or person

Institute

University of Toyama

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Ethics Review Committee on Clinical and Epidemiological Research, University of Toyama

Address

2630 Sugitani, Toyama-shi, 930-0194, Japan

Tel

076-415-8857

Email

rinri@adm.u-toyama.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

2025 Year 05 Month 01 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2025 Year 02 Month 26 Day

Date of IRB


Anticipated trial start date

2025 Year 05 Month 01 Day

Last follow-up date

2027 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 03 Month 21 Day

Last modified on

2025 Year 03 Month 21 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000065549