UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060211
Receipt number R000068840
Scientific Title The effect of a physical activity program on loneliness among workers: a randomized controlled trial
Date of disclosure of the study information 2025/12/26
Last modified on 2025/12/26 11:40:21

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Basic information

Public title

The effect of a physical activity program on loneliness among workers

Acronym

The effect of a physical activity program on loneliness among workers

Scientific Title

The effect of a physical activity program on loneliness among workers: a randomized controlled trial

Scientific Title:Acronym

The effect of a physical activity program on loneliness among workers: a randomized controlled trial

Region

Japan


Condition

Condition

Loneliness

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To examine the effect of the physical activity program on improving loneliness among workers by a randomized controlled trial design.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Loneliness (UCLA Loneliness Scale)(Immediately after intervention, one month after intervention)

Key secondary outcomes

Psychological distress(K6)
Physical complaint(BJSQ)
Workplace social capital(Workplace social capital scale)
Social support (BJSQ)
Work engagement(UWES)
Work performance and Absenteeism(WHO-HPQ)
Exercise self-efficacy(Exercise self-efficacy scale)
Exercise habit
Loneliness at work (Scale for loneliness at work)
Loneliness (The three-item loneliness scale)

(Only intervention group)
Implementation outcome


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

No treatment

Stratification

YES

Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Behavior,custom

Interventions/Control_1

A physical activity program consisting of approximately eight 30-minute sessions will be offered to workers over one month.

Interventions/Control_2

Waitlist

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


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Workers

Key exclusion criteria

Those with persistent dizziness.
Those who have been advised by a physician to restrict physical activity.

Target sample size

128


Research contact person

Name of lead principal investigator

1st name Asuka
Middle name
Last name Sakuraya

Organization

Graduate School of Medicine, The University of Tokyo

Division name

Department of Digital Mental Health

Zip code

113-0033

Address

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

TEL

03-5800-9621

Email

asuka@m.u-tokyo.ac.jp


Public contact

Name of contact person

1st name Asuka
Middle name
Last name Sakuraya

Organization

Graduate School of Medicine, The University of Tokyo

Division name

Department of Digital Mental Health

Zip code

113-0033

Address

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

TEL

03-5800-9621

Homepage URL


Email

asuka@m.u-tokyo.ac.jp


Sponsor or person

Institute

Graduate School of Medicine, The University of Tokyo

Institute

Department

Personal name

Asuka Sakuraya


Funding Source

Organization

Japan Science and Technology Agency

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research ethics committee, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo

Address

7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, JAPAN

Tel

03-5841-0818

Email

ethics@m.u-tokyo.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 12 Month 26 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 11 Month 19 Day

Date of IRB

2025 Year 11 Month 19 Day

Anticipated trial start date

2026 Year 01 Month 05 Day

Last follow-up date

2026 Year 12 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 12 Month 26 Day

Last modified on

2025 Year 12 Month 26 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068840