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.
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
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