Biomechanics is the study of the mechanical aspects of biological systems, including their structure, function, and motion. It is a discipline within biophysics that focuses on the mechanics of living organisms. Biomechanics is a branch of kinesiology, which is a larger field that examines the mechanics of movement. It is both a theoretical and practical science, involving the study and application of its findings. In addition to bones and muscles, biomechanics also considers the mechanics of other bodily systems such as blood circulation and renal function. Human movement is a complex process that involves the coordinated interaction of bones, muscles, ligaments, and joints within the musculoskeletal system. This interaction is influenced by gravity and other external forces, and is regulated by the neurological system. Any injury or damage to any component of the musculoskeletal system can disrupt this mechanical interaction, leading to movement problems, instability, or disability. Conversely, modifying and controlling the mechanical environment can help prevent injuries, correct abnormalities, and facilitate healing and rehabilitation. Therefore, analyzing the biomechanics and stress on each component during movement through motion analysis is valuable for understanding the causes of diseases, making treatment decisions, and evaluating treatment outcomes.