UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000063191
Receipt number R000072319
Scientific Title A longitudinal study of health, physical function, and quality of work in working-age adults
Date of disclosure of the study information 2026/10/30
Last modified on 2026/10/06 15:21:55

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Basic information

Public title

A cohort study on improving the quality of work and extending working life by occupational category among working-age adults

Acronym

A longitudinal study of health, physical function, and quality of work in working-age adults

Scientific Title

A longitudinal study of health, physical function, and quality of work in working-age adults

Scientific Title:Acronym

LIFE-WORK Study

Region

Japan


Condition

Condition

Healthy working-age adults

Classification by specialty

Rehabilitation medicine Nursing Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To clarify, by occupational category, the cross-sectional and longitudinal associations of health status, physical function, and lifestyle background with the quality of work (work productivity and work engagement) in working-age adults.

Basic objectives2

Others

Basic objectives -Others

Exploration of factors associated with the quality of work

Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

Work engagement (Utrecht Work Engagement Scale, 9-item version)

Key secondary outcomes

Blood pressure, body composition, grip strength, stand-up test, two-step test, 25-question Geriatric Locomotive Function Scale (GLFS-25), and lifestyle habits (smoking, drinking, exercise; based on the standard questionnaire of the Specific Health Checkups)


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


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

20 years-old <=

Age-upper limit

64 years-old >=

Gender

Male and Female

Key inclusion criteria

Individuals who meet any of the following and provide consent: (1) local government employees (Satte City, Hidaka City, Totsuka Ward of Yokohama City, and community general support centers); (2) faculty and staff of the investigators' institutions; (3) community residents aged 20-64 years; (4) employees of medical and long-term care facilities

Key exclusion criteria

Minors; individuals unable to provide consent; individuals who do not understand or agree to the study; individuals whose physicians have prohibited exercise; individuals with severe physical or mental impairments that interfere with testing

Target sample size

160


Research contact person

Name of lead principal investigator

1st name Kohei
Middle name
Last name MARUYA

Organization

Japan University of Health Sciences

Division name

Department of Physical Therapy, School of Health Sciences

Zip code

340-0145

Address

2-555, Hirasuka, Satte-shi, Saitama, JAPAN

TEL

0480-48-5806

Email

k-maruya@jhsu.ac.jp


Public contact

Name of contact person

1st name Junichiroh
Middle name
Last name KANEKO

Organization

Japan University of Health Sciences

Division name

Department of Physical Therapy, School of Health Sciences

Zip code

340-0145

Address

2-555, Hirasuka, Satte-shi, Saitama, Japan

TEL

0480-48-5806

Homepage URL


Email

j-kaneko@jhsu.ac.jp


Sponsor or person

Institute

Japan University of Health Sciences

Institute

Department

Personal name

Junichiroh KANEKO


Funding Source

Organization

Self funding

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization

JAPAN


Other related organizations

Co-sponsor

Shonan University of Medical Sciences, Faculty of Health and Medical Sciences, Department of Rehabilitation, Physical Therapy Course (Principal investigator: Professor Yoshitsugu Omori; Co-investigator: Lecturer Masayuki Tsuchida) / 16-48 Kamishinano, Totsuka-ku, Yokohama, Kanagawa 244-0806, Japan / TEL +81-45-821-0111 (main)

Shinshu University, School of Medicine, School of Health Sciences, Department of Physical Therapy (Principal investigator: Associate Professor Kazuaki Oyake) / 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan / TEL +81-263-37-2408

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Ethics Committee, Japan University of Health Sciences

Address

2-555, Hirasuka, Satte-shi, Saitama, Japan

Tel

0480-48-5806

Email

ethics-re@jhsu.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 30 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 01 Month 21 Day

Date of IRB

2026 Year 04 Month 08 Day

Anticipated trial start date

2026 Year 07 Month 28 Day

Last follow-up date

2032 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

No intervention (observational study). Participants will undergo blood pressure measurement, body composition measurement, physical function tests (grip strength, stand-up test, and two-step test), and questionnaires (demographics, Utrecht Work Engagement Scale 9-item version, 25-question Geriatric Locomotive Function Scale, and lifestyle habits).


Management information

Registered date

2026 Year 10 Month 06 Day

Last modified on

2026 Year 10 Month 06 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072319