UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062355
Receipt number R000071366
Scientific Title Validity of SPLYZA Motion for Lower Limb Biomechanical Assessment During the Forward Lunge: A Comparison with Three-Dimensional Motion Capture
Date of disclosure of the study information 2026/07/27
Last modified on 2026/07/27 21:08:35

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Basic information

Public title

study examining whether a motion-analysis app can accurately measure leg movement during the forward lunge

Acronym

SPLYZA-Lunge Validity Study

Scientific Title

Validity of SPLYZA Motion for Lower Limb Biomechanical Assessment During the Forward Lunge: A Comparison with Three-Dimensional Motion Capture

Scientific Title:Acronym

SPLYZA-Lunge Validity Study

Region

Japan


Condition

Condition

Healthy volunteers (no target disease)

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study aims to examine the validity of joint angle measurements obtained by the video-based motion analysis application SPLYZA Motion during forward lunge movement in healthy adults, by comparing hip, knee, and ankle joint angles against a laboratory-based three-dimensional motion capture system (VICON) as the reference standard.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

The agreement between SPLYZA Motion and a three-dimensional motion capture system (VICON) for hip, knee, and ankle joint angles during forward lunge movement. The primary outcome measure is the intraclass correlation coefficient, ICC(2,1).

Key secondary outcomes

Mean absolute error (MAE), root mean square error (RMSE), systematic error assessed by Bland-Altman analysis (bias, 95% limits of agreement, and proportional bias), and between-trial reproducibility (ICC(3,1)).


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

18 years-old <=

Age-upper limit

24 years-old >=

Gender

Male and Female

Key inclusion criteria

Healthy adults who can safely perform the forward lunge task and who provide informed consent

Key exclusion criteria

Individuals with a history of lower limb injury within the past six months; orthopedic disorders of the trunk or lower limbs, or a history of fracture or surgery of the hip, knee, or ankle joints; neurological or muscular diseases, peripheral neuropathy, or sensory impairment affecting daily living or sports activities; or those unable to perform the task movement.

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Nakanishi
Middle name
Last name Taku

Organization

Kio University Graduate School

Division name

Graduate School of Health Sciences

Zip code

635-0832

Address

4-2-2 Umaminaka, Koryo-cho, Kitakatsuragi-gun, Nara

TEL

0745-54-1601

Email

f6938080@kio.ac.jp


Public contact

Name of contact person

1st name Nakanishi
Middle name
Last name Taku

Organization

Kio University Graduate School

Division name

Graduate School of Health Sciences, Masters Program, Kio University

Zip code

635-0832,

Address

4-2-2 Umaminaka, Koryo-cho, Kitakatsuragi-gun, Nara

TEL

0745-54-1601

Homepage URL


Email

f6938080@kio.ac.jp


Sponsor or person

Institute

Kio univercity

Institute

Department

Personal name

NakanishiTaku


Funding Source

Organization

Kio univercity

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

Graduate School, Kio University

Address

4-2-2 Umaminaka, Koryo-cho, Kitakatsuragi-gun, Nara

Tel

0745-54-1601

Email

f6938080@kio.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

畿央大学校内


Other administrative information

Date of disclosure of the study information

2026 Year 07 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

Preinitiation

Date of protocol fixation

2026 Year 07 Month 27 Day

Date of IRB


Anticipated trial start date

2026 Year 08 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

Other related information

This is a cross-sectional observational study to validate the video-based motion analysis application SPLYZA Motion against a three-dimensional motion capture system for measuring lower limb joint angles during forward lunge movement. Healthy adults are assessed, and the agreement of hip, knee, and ankle joint angles measured simultaneously by both systems is evaluated using intraclass correlation coefficients and Bland-Altman analysis.


Management information

Registered date

2026 Year 07 Month 27 Day

Last modified on

2026 Year 07 Month 27 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071366