UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000063437
Receipt number R000072605
Scientific Title Evaluation of the Effects of a Polyvagal Theory-Based Surf Therapy Program for Trauma Recovery
Date of disclosure of the study information 2026/10/27
Last modified on 2026/10/27 23:20:13

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Basic information

Public title

Changes in psychological health among adults participating in a trauma-informed surf therapy program

Acronym

Trauma-Informed Surf Therapy Study

Scientific Title

Evaluation of the Effects of a Polyvagal Theory-Based Surf Therapy Program for Trauma Recovery

Scientific Title:Acronym

PBST Study

Region

Japan


Condition

Condition

Psychological distress and trauma-related symptoms

Classification by specialty

Psychiatry Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To examine changes in psychological outcomes before, immediately after, and one month after participation in a polyvagal theory-based surf therapy program among adults, and to explore its potential as an approach to supporting trauma recovery.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Change in the Japanese version of the Adult Resilience Measure (ARM-R) score from before to after the surf therapy program

Key secondary outcomes

Change in the ARM-R score from before the program to one month after the program; and changes in psychological distress assessed with the K6 and trauma-related symptoms assessed with the IES-R before, after, and one month after the program


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Behavior,custom

Interventions/Control_1

A polyvagal theory-based surf therapy program provided by the nonprofit organization The SCC Surf Therapy Japan. The program consists of five approximately 90-minute sessions, held once a week. Each session includes orientation and warm-up, preparation before entering the sea, awareness of bodily sensations in shallow water, floating on a surfboard, surfing, and cool-down and reflection. Activities are adjusted or cancelled according to participants' condition and preferences and sea conditions.

Interventions/Control_2


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

99 years-old >=

Gender

Male and Female

Key inclusion criteria

Adults aged 18 years or older who participate in the surf therapy program provided by The SCC Surf Therapy Japan, are able to travel independently to the program site during the five weekly sessions, and provide written informed consent after receiving an explanation of the study. A history of trauma or a diagnosis of PTSD is not required. Participants receiving outpatient treatment for a medical condition must have permission from their treating physician to participate.

Key exclusion criteria

Individuals with a physician's instruction to restrict exercise; those currently hospitalized; those with severe cardiac or respiratory disease; those who are pregnant; and those unable to travel or communicate independently as required for safe participation. Individuals receiving outpatient treatment who cannot obtain permission to participate from their treating physician are also excluded.

Target sample size

40


Research contact person

Name of lead principal investigator

1st name Satoko
Middle name
Last name Tsuda

Organization

Chubu University

Division name

College of Life and Health Sciences, Department of Occupational Therapy

Zip code

487-8501

Address

1200 Matsumoto-cho, Kasugai-shi, Aichi, Japan

TEL

0568-51-1111

Email

s-tsuda@fsc.chubu.ac.jp


Public contact

Name of contact person

1st name Kazumi
Middle name
Last name Kubota

Organization

The University of Tokyo Hospital

Division name

Department of Healthcare Information Management

Zip code

113-8655

Address

7-3-1 Hongo, Bunkyo-ku, Tokyo

TEL

0358008685

Homepage URL


Email

kkubota@m.u-tokyo.ac.jp


Sponsor or person

Institute

Chubu University

Institute

Department

Personal name



Funding Source

Organization

other

Organization

Division

Category of Funding Organization

Non profit foundation

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Chubu University Ethics Review Committee

Address

1200 Matsumoto-cho, Kasugai-shi, Aichi

Tel

0568-51-1111

Email

info-jinsoku@fsc.chubu.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 27 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

Open public recruiting

Date of protocol fixation

2026 Year 05 Month 11 Day

Date of IRB

2026 Year 05 Month 11 Day

Anticipated trial start date

2026 Year 10 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

2026 Year 10 Month 27 Day

Last modified on

2026 Year 10 Month 27 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072605