Testing the Reliability of Kinovea Video Analysis Software in Measuring Knee and Hip Angles During Sit-to-Stand Tasks

NCT07676149 | Not Yet Recruiting

• 1 other identifier: 01/31
• Study Type: observational
• Target: 35
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to evaluate the intra-observer and inter-observer reliability of the Kinovea video analysis software in measuring knee and hip angles during the sit-to-stand movement. Participants will perform sit-to-stand tasks while being video-recorded. The recorded movements will be analyzed using the Kinovea software to determine the consistency and reliability of joint angle measurements.

Conditions

Biomechanical Phenomena; Healthy Volunteers

Keywords

Kinovea; Reliability; Sit-to-stand; Video analysis; Joint angles; Inter-rater reliability; Intra-rater reliability; Hip joint; Knee joint

Outcome Measures

Primary Outcomes (2)

• Hip Flexion

  Participants will perform a sit-to-stand task using a standard chair while lower extremity movements are recorded with a camera. The recorded videos will be transferred to the Kinovea software for the measurement of hip joint angles. To facilitate angle calculation, anatomical landmarks including the greater trochanter, the longitudinal axis of the trunk, and the midpoint of the thigh will be marked on the participant's clothing. Hip joint angles will then be analyzed using the angle measurement tool available in the software. Measurements will be performed independently by three physiotherapists at one-week intervals.

  At baseline (single video recording session)

• Knee Flexion

  Participants will perform a sit-to-stand task using a standard chair while lower extremity movements are recorded with a camera. The recorded videos will be transferred to the Kinovea software for knee joint angle analysis. To calculate knee joint angles, anatomical landmarks including the greater trochanter, lateral femoral condyle, and lateral malleolus will be marked on the participant's clothing. Knee joint angles will then be analyzed using the angle measurement tool within the software. Measurements will be performed independently by three physiotherapists at one-week intervals.

  At baseline (single video recording session)

Study Arms (1)

Healthy Adults

The study consists of a single group. This group will comprise healthy individuals who meet the predefined inclusion and exclusion criteria.

Eligibility Criteria

• Age: 18 Years - 45 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

The study population consists of volunteer students recruited from the Ankara Yildirim Beyazit University, Department of Physiotherapy and Rehabilitation at the Faculty of Health Sciences.

You may qualify if:

• Be between the ages of 18 and 45
• Have a body mass index (BMI) between 18 and 25 kg/m²
• Be able to sit down and stand up independently
• Be a volunteer

You may not qualify if:

• Having previously undergone lower extremity and spinal surgery
• Having a neurological, orthopedic, or vestibular condition that may affect balance and muscle strength
• Having sustained a lower extremity and/or spinal injury within the last 6 months
• Having spinal problems such as scoliosis or lumbar disc herniation
• Having congenital orthopedic problems such as hemimelia, dysmelia, or leg length discrepancy
• Being pregnant

Sponsors & Collaborators

• Ankara Yildirim Beyazıt University: lead

Study Sites (1)

Ankara Yıldırım Beyazıt University

Ankara, Turkey (Türkiye)

Location

Central Study Contacts

Sevilay Seda BAŞ, PhD

CONTACT

+90 (312) 906 1683; ssbas@aybu.edu.tr

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Asst. Prof.

Study Record Dates

• First Submitted: June 24, 2026
• First Posted: June 30, 2026
• Study Start: June 29, 2026
• Primary Completion: July 20, 2026
• Study Completion: July 20, 2026
• Last Updated: June 30, 2026

Record last verified: 2026-06

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)