UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061483
Receipt number R000070265
Scientific Title Musculoskeletal Risk Factors for Pregnancy-Related Pelvic Girdle Pain: A Prospective Cohort Study
Date of disclosure of the study information 2026/05/08
Last modified on 2026/05/07 17:51:29

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Basic information

Public title

Musculoskeletal Risk Factors for Pregnancy-Related Pelvic Girdle Pain: A Prospective Cohort Study

Acronym

Musculoskeletal Risk Factors for Pregnancy-Related Pelvic Girdle Pain: A Prospective Cohort Study

Scientific Title

Musculoskeletal Risk Factors for Pregnancy-Related Pelvic Girdle Pain: A Prospective Cohort Study

Scientific Title:Acronym

Musculoskeletal Risk Factors for Pregnancy-Related Pelvic Girdle Pain: A Prospective Cohort Study

Region

Japan


Condition

Condition

pregnancy-related pelvic girdle pain

Classification by specialty

Obstetrics and Gynecology Orthopedics Rehabilitation medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to longitudinally track changes in inner unit function, posture, and movement patterns associated with the progression of pregnancy, and to clarify their relationship with the onset of pre- and postpartum pelvic girdle pain. By doing so, we aim to identify physical risks before symptoms become manifest and to provide a basis for considering individualized physical therapy at the most effective timing.

Basic objectives2

Others

Basic objectives -Others

Risk factors

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Pain assessment using the Visual Analogue Scale (VAS)

Key secondary outcomes

Functional disability level assessed by the Japanese-Language version of the Pelvic Girdle Questionnaire (PGQ-J)
Muscle function evaluation using ultrasonography (muscle thickening fraction of the diaphragm, transversus abdominis, and multifidus; bladder base elevation and anorectal angle of the pelvic floor muscles)
Postural and movement evaluation using SPLYZA Motion (joint angles during standing and gait)


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


Not applicable

Gender

Female

Key inclusion criteria

Primiparous women aged 20 years or older, Receiving regular prenatal checkups, Having obtained permission from their obstetrician (attending physician)

Key exclusion criteria

Participants on prescribed bed rest (e.g., threatened premature labor), Abnormal pregnancy (e.g., placenta previa, ectopic pregnancy), Multiple pregnancy, Pregnancy complications (e.g., hypertensive disorders of pregnancy, gestational diabetes mellitus), History of trauma, tumor, or infection in the lumbar region, History of surgery for orthopedic conditions (spine, pelvis, or hip joint) or gynecological disorders

Target sample size

57


Research contact person

Name of lead principal investigator

1st name Yuka
Middle name
Last name Yokoi

Organization

Josai International University

Division name

Graduate School of Health Sciences

Zip code

283-0002

Address

1 Gumyo, Togane-shi, Chiba

TEL

0475-53-2444

Email

yokoi@jiu.ac.jp


Public contact

Name of contact person

1st name Ayumi
Middle name
Last name Sato

Organization

Josai International University

Division name

Graduate School of Health Sciences

Zip code

283-0002

Address

1 Gumyo, Togane-shi, Chiba

TEL

0475-55-8800

Homepage URL


Email

mh25-003@jiu.ac.jp


Sponsor or person

Institute

Other

Institute

Department

Personal name



Funding Source

Organization

None

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

Josai International University

Address

1 Gumyo, Togane-shi, Chiba

Tel

0475-55-8800

Email

yokoi@jiu.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 05 Month 08 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

2026 Year 05 Month 08 Day

Date of IRB

2026 Year 03 Month 26 Day

Anticipated trial start date

2026 Year 05 Month 08 Day

Last follow-up date

2029 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

This study is a prospective cohort study aimed at identifying physical risk factors associated with pregnancy-related pelvic girdle pain (PPGP). The study will involve 57 pregnant and postpartum women visiting Total Health Clinic. Assessments will be conducted longitudinally at five time points: 12, 20, 28, and 36 weeks of gestation, and 1 month postpartum.
The primary outcomes are pain intensity (VAS) and functional disability (PGQ-J). Secondary outcomes include the evaluation of inner unit muscle function (diaphragm, transversus abdominis, multifidus, and pelvic floor muscles) using ultrasonography, and postural and movement analysis using SPLYZA Motion.


Management information

Registered date

2026 Year 05 Month 07 Day

Last modified on

2026 Year 05 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000070265