UMIN-ICDS Clinical Trial

Public title

Comparison of the Accuracy of AI-Based Markerless Motion Analysis and Optical Motion Capture

Acronym

AI Motion Analysis vs Motion Capture Accuracy Study

Scientific Title

Accuracy Comparison Between AI-Based Markerless Motion Analysis and Optical Motion Capture

Scientific Title:Acronym

AIM-MoCap Study

Region

Japan

Condition

Healthy adults

Classification by specialty

Rehabilitation medicine

Classification by malignancy

Others

Genomic information

NO

Narrative objectives1

The purpose of this study is to evaluate the measurement accuracy of AI-based markerless motion analysis. In healthy adults, kinematic parameters obtained from AI-based markerless motion analysis will be compared with those obtained from optical motion capture under the same experimental conditions to examine the validity, advantages, and limitations of AI-based markerless motion analysis.

Basic objectives2

Efficacy

Basic objectives -Others

Trial characteristics_1

Exploratory

Trial characteristics_2

Explanatory

Developmental phase

Not applicable

Primary outcomes

Agreement in maximum joint range of motion (ROM) between AI-based markerless motion analysis and optical motion capture across the measured tasks

Key secondary outcomes

Agreement of joint angle time-series data between AI-based markerless motion analysis and optical motion capture

Study type

Observational

Basic design

Randomization

Randomization unit

Blinding

Control

Stratification

Dynamic allocation

Institution consideration

Blocking

Concealment

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

Age-lower limit

18

years-old

<=

Age-upper limit

Not applicable

Gender

Male and Female

Key inclusion criteria

1. Healthy adults aged 18 years or older

2. Individuals with no history of neurological or musculoskeletal disorders affecting movement

3. Individuals who provide written informed consent to participate in the study

4. Individuals capable of safely performing the required joint movements and functional tasks

Key exclusion criteria

1. Individuals with neurological or musculoskeletal disorders that may affect movement

2. Individuals with pain or limited range of motion in the upper limbs, neck, trunk, or lower limbs that interferes with performing the study tasks

3. Individuals with acute injuries or medical conditions restricting physical movement during the study period

4. Individuals judged by the investigators to be unsuitable for participation in the study

Target sample size

30

Name of lead principal investigator

1st name	Yuji
Middle name
Last name	Inagaki

Organization

Faculty of Health Sciences, Hokkaido University, Japan

Division name

Division of Rehabilitation Science

Zip code

0600812

Address

Kita 12-jo Nishi 5-chome, Kita-ku, Sapporo, Hokkaido, Japan

TEL

0117063335

Email

y.inagaki@pop.med.hokudai.ac.jp

Name of contact person

1st name	Yuji
Middle name
Last name	Inagaki

Organization

Faculty of Health Sciences, Hokkaido University, Japan

Division name

Division of Rehabilitation Science

Zip code

0600812

Address

Kita 12-jo Nishi 5-chome, Kita-ku, Sapporo, Hokkaido, Japan

TEL

0117063335

Homepage URL

Email

y.inagaki@pop.med.hokudai.ac.jp

Institute

Hokkaido University

Institute

Department

Personal name

Yuji Inagaki

Organization

Japan Science and Technology Agency

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization

Japan

Co-sponsor

Name of secondary funder(s)

Organization

Faculty of Health Sciences, Graduate School of Health Sciences, Hokkaido University

Address

Kita 12-jo Nishi 5-chome , Kita-ku, Sapporo, Hokkaido, Japan

Tel

0117063335

Email

y.inagaki@pop.med.hokudai.ac.jp

Secondary IDs

NO

Study ID_1

Org. issuing International ID_1

Study ID_2

Org. issuing International ID_2

IND to MHLW

北海道

Institutions

Date of disclosure of the study information

2026

Year

03

Month

12

Day

URL releasing protocol

Publication of results

Unpublished

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

Recruitment status

Preinitiation

Date of protocol fixation

2026

Year

03

Month

12

Day

Date of IRB

Anticipated trial start date

2026

Year

04

Month

01

Day

Last follow-up date

2028

Year

03

Month

31

Day

Date of closure to data entry

Date trial data considered complete

Date analysis concluded

Other related information

This study is an observational study involving healthy adults. Participants will perform basic joint movements (shoulder flexion, abduction, internal and external rotation; elbow flexion; forearm pronation and supination; wrist flexion and extension; and cervical flexion, extension, and rotation) as well as functional tasks related to activities of daily living (reaching, hair-combing, hand-behind-back, sit-to-stand, and step-over tasks). Motion data will be recorded simultaneously using an AI-based markerless motion analysis system and an optical motion capture system. Three-dimensional coordinates and joint angle data obtained from both systems will be analyzed to examine the agreement and measurement error between the two methods. The results will be used to evaluate the accuracy and validity of AI-based markerless motion analysis.

Registered date

2026

Year

03

Month

12

Day

Last modified on

2026

Year

03

Month

12

Day

Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000069715