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

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.

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.