UMIN-ICDS Clinical Trial
| Unique ID issued by UMIN | UMIN000062813 |
|---|---|
| Receipt number | R000071906 |
| Scientific Title | Effects of stick-figure training on the accuracy of observational gait analysis in physical therapy students: a pilot randomized controlled trial |
| Date of disclosure of the study information | 2026/09/03 |
| Last modified on | 2026/09/03 20:10:06 |
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Basic information
Public title
A study on whether stick-figure picture training improves physical therapy students' ability to estimate joint angles from gait videos
Acronym
OGA Stick-Figure Trial
Scientific Title
Effects of stick-figure training on the accuracy of observational gait analysis in physical therapy students: a pilot randomized controlled trial
Scientific Title:Acronym
OGA Stick-Figure Trial
Region
| Japan |
Condition
Condition
Final-year undergraduate students enrolled in a physical therapy program.
Classification by specialty
| Rehabilitation medicine |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
This pilot randomized controlled trial aims to evaluate the effects of stick-figure-based perceptual training on the accuracy of observational gait analysis (OGA) in physical therapy students. Specifically, the study examines three research questions: (1) whether stick-figure training improves accuracy of joint angle estimation compared with a control condition; (2) whether learning effects differ between vertical and non-vertical viewing conditions of stick-figure stimuli; and (3) whether training effects transfer to a clinically relevant task involving observation of actual patient gait videos. As a pilot trial, the study also seeks to inform the design of a subsequent confirmatory trial by estimating effect sizes and identifying methodological constraints.
Basic objectives2
Others
Basic objectives -Others
Educational effectiveness: improvement in observational gait analysis accuracy through stick-figure training
Trial characteristics_1
Exploratory
Trial characteristics_2
Explanatory
Developmental phase
Not applicable
Assessment
Primary outcomes
Accuracy of joint angle estimation in observational gait analysis, measured as the absolute error (in degrees) between participants' estimated angles and the reference angles, assessed across nine indicators comprising three lower-limb joints (hip, knee, ankle) and three task conditions (stick-figure vertical condition, stick-figure non-vertical condition, patient gait video). Outcomes were measured immediately before and after the training session. Given the pilot nature of this trial, no single primary outcome was pre-specified; all nine indicators were treated as exploratory.
Key secondary outcomes
Base
Study type
Interventional
Study design
Basic design
Parallel
Randomization
Randomized
Randomization unit
Individual
Blinding
Open -no one is blinded
Control
No treatment
Stratification
NO
Dynamic allocation
NO
Institution consideration
Institution is not considered as adjustment factor.
Blocking
NO
Concealment
No need to know
Intervention
No. of arms
2
Purpose of intervention
Educational,Counseling,Training
Type of intervention
| Behavior,custom |
Interventions/Control_1
Participants in the training group performed an error-correction stick-figure training program in a single session. The program consisted of 150 trials total: 75 trials under the vertical condition and 75 trials under the non-vertical condition, with 25 trials per joint (hip, knee, ankle) in each condition. In the vertical condition, the basic axis of the stick-figure was always aligned vertically. In the non-vertical condition, the entire stick-figure was rotated by 10-20 degrees while preserving the target joint angle, displacing the basic axis from vertical. For each trial, a stick-figure stimulus was presented on a computer screen and participants estimated the joint angle. Immediately after each response, the correct answer was presented as feedback to facilitate error correction. Stick-figure stimuli were generated at predefined angles ranging from 0 to 40 degrees in 5 degree increments. Training stimuli were designed to be non-overlapping with pre- and post-test stimuli.
Interventions/Control_2
Participants in the control group received no training intervention. They were instructed to rest quietly for the same duration as the training session of the training group. No stick-figure stimuli, joint angle estimation tasks, or feedback were provided during this period. Pre- and post-test assessments were administered using the same procedures and stimuli as the training group, with an equivalent time interval between the two assessments.
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
| Not applicable |
Gender
Male and Female
Key inclusion criteria
Key inclusion criteria were as follows: (1) Final-year undergraduate students enrolled in a physical therapy program; (2) Visual acuity (corrected if necessary) sufficient for daily activities; (3) Understanding of the purpose, procedures, and potential risks of the study, and provision of written informed consent.
Key exclusion criteria
Key exclusion criteria were as follows: (1) Failure to meet any of the inclusion criteria; (2) Inability to participate during the study period.
Target sample size
20
Research contact person
Name of lead principal investigator
| 1st name | Daiki |
| Middle name | |
| Last name | Matsuzaka |
Organization
Tohoku Bunka Gakuen University Graduate School
Division name
Health and Environment Sciences
Zip code
981-8551
Address
6-45-1 Kunimi, Aoba-ku, Sendai City, Miyagi Prefecture
TEL
09068534199
pt51511069@gmail.com
Public contact
Name of contact person
| 1st name | Daiki |
| Middle name | |
| Last name | Matsuzaka |
Organization
Tohoku Bunka Gakuen University Graduate School
Division name
Health and Environment Sciences
Zip code
981-8551
Address
6-45-1 Kunimi, Aoba-ku, Sendai City, Miyagi Prefecture
TEL
09068534199
Homepage URL
pt51511069@gmail.com
Sponsor or person
Institute
Tohoku Bunka Gakuen University
Institute
Department
Personal name
Daiki Matsuzaka
Funding Source
Organization
Japan Society for the Promotion of Science (JSPS KAKENHI Grant Number 25K17040, Grant-in-Aid for Early-Career Scientists)
Organization
Division
Category of Funding Organization
Japanese Governmental office
Nationality of Funding Organization
Japan
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
Tohoku Bunka Gakuen University Graduate School
Address
6-45-1 Kunimi, Aoba-ku, Sendai City, Miyagi Prefecture
Tel
09068534199
pt51511069@gmail.com
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 | 09 | Month | 03 | 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
20
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
Completed
Date of protocol fixation
| 2025 | Year | 03 | Month | 04 | Day |
Date of IRB
| 2025 | Year | 03 | Month | 04 | Day |
Anticipated trial start date
| 2025 | Year | 11 | Month | 12 | Day |
Last follow-up date
| 2026 | Year | 01 | Month | 22 | Day |
Date of closure to data entry
Date trial data considered complete
Date analysis concluded
Other
Other related information
Management information
Registered date
| 2026 | Year | 09 | Month | 03 | Day |
Last modified on
| 2026 | Year | 09 | Month | 03 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071906
