Video-based Sit-to-stand Evaluation for Stroke Patients

NCT07359001 | Completed

• 1 other identifier: SYU 2022-10-012-007
• Study Type: observational
• Target: 10
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to develop and validate a novel video-based postural evaluation tool designed to objectively measure the quality and dynamics of the Sit-to-Stand (STS) motion in stroke patients, specifically allowing physical therapists to monitor patient progress remotely via tele-evaluation. Since stroke survivors often face difficulties attending regular in-clinic assessments, this tool addresses a critical unmet need. The core question this study aims to answer is whether this new video-based measurement can accurately and consistently assess standing ability when compared against established standards. To confirm the tool's trustworthiness, we will first test its reliability by assessing if different experts achieve the same results (Inter-rater reliability) and if the same expert achieves the same results across multiple trials (Intra-rater reliability). We will then confirm the tool's accuracy (validity) by examining if its derived scores correlate strongly with established clinical measures (e.g., Trunk Impairment Scale, TIS) and patient-reported outcome measures. Finally, we will verify its scientific precision by comparing the tool's detailed kinematic measurements (including total STS time and joint angles) against the gold-standard data derived from the Kinovea motion analysis software.

Conditions

Stroke; Stroke Rehabilitation

Keywords

Stroke; Telerehabilitation; Scale; Reproducibility of Results; Correlation of Data; Biomechanical Phenomena; Range of Motion, Articular; Video Recording; Posture

Outcome Measures

Primary Outcomes (2)

• Inter-rater Reliability of the Video-Based Sit-to-Stand (STS) Assessment Tool as Assessed by the Intraclass Correlation Coefficient (ICC 2,1)

  The inter-rater reliability assesses the degree of agreement among 28 different physical therapists evaluating the same patient videos. The video-based STS assessment tool consists of 29 items across 5 phases (Phase 0: Preparation, Phase 1: Flexion Momentum, Phase 2: Momentum Transfer, Phase 3: Extension, Phase 4: Stabilization). Each item is scored on a 5-point Likert scale ranging from 1 (poor performance/unable) to 5 (perfect performance). The total score is the sum of all items. Reliability is reported using the Intraclass Correlation Coefficient (ICC) model 2,1. An ICC value ≥ 0.90 indicates excellent reliability, 0.75-0.90 good, 0.50-0.75 moderate, and \< 0.50 poor reliability.

  At baseline, during a single assessment session following enrollment

• Intra-rater Reliability of the Video-Based Sit-to-Stand (STS) Assessment Tool as Assessed by the Intraclass Correlation Coefficient (ICC 3,1)

  The intra-rater reliability assesses the consistency of the same rater's scoring over time. Ten physical therapists evaluated the same patient video recordings at baseline and again after a specific interval. The assessment tool comprises 29 items scored on a 1 to 5 scale, where higher scores indicate better performance. The consistency between the two time points is calculated using the Intraclass Correlation Coefficient (ICC) model 3,1.

  At baseline, during a single assessment session following enrollment

Secondary Outcomes (3)

• Criterion Validity: Correlation Between the Video-Based STS Assessment Tool Score and the Trunk Impairment Scale (TIS) Score

  At baseline, during a single assessment session following enrollment

• Criterion Validity: Correlation Between the Video-Based STS Assessment Tool Score and Total Sit-to-Stand Duration

  At baseline, during a single assessment session following enrollment

• Construct Validity: Correlation Between Video-Based STS Assessment Tool Scores and Kinematic Parameters (Joint Angles and Angular Velocities) Measured by Kinovea Software

  At baseline, during a single assessment session following enrollment

Study Arms (1)

Stroke patients

No interventions are provided. They will be video recorded during their sit-to-stand trials of three

Other: Observation

Interventions

Observation OTHER

Stroke patients are video recorded during three sit-to-stand trials with 5 minutes rest between the trials.

Stroke patients

Eligibility Criteria

• Age: 20 Years - 80 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

The study population consists of stroke patients currently admitted to H Hospital located in Namyangju-si, Gyeonggi-do, South Korea.

You may qualify if:

• Patients diagnosed with stroke resulting in motor impairment.
• Patients in the chronic phase, defined as being more than one year post-diagnosis.
• Patients capable of performing the Sit-to-Stand (STS) movement independently without the use of walking aids or physical assistance.
• Patients who fully understand the study purpose and procedures and have voluntarily provided written informed consent.

Sponsors & Collaborators

• Sahmyook University: lead

Study Sites (1)

Sahmyook University, Science Hall 3

Seoul, Seoul, 01795, South Korea

Location

MeSH Terms

Conditions

Stroke

Interventions

Observation

Condition Hierarchy (Ancestors)

Cerebrovascular Disorders; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Vascular Diseases; Cardiovascular Diseases

Intervention Hierarchy (Ancestors)

Methods; Investigative Techniques

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: PhD Student

Study Record Dates

• First Submitted: November 27, 2025
• First Posted: January 22, 2026
• Study Start: April 1, 2023
• Primary Completion: May 31, 2023
• Study Completion: May 31, 2023
• Last Updated: January 22, 2026

Record last verified: 2025-11

Locations

KR (1)