Validity and Reliability of Dr. Goniometer in Elbow Flexion

The Dr. Goniometer application is a digital tool used for measuring elbow flexion range of motion (ROM). In this study, participants' elbow flexion ROM will be assessed using both the Dr. Goniometer application and a manual goniometer. Measurements will be taken twice by two different raters to evaluate the validity and reliability of the digital application compared to the manual goniometer.