An abridged synopsis of the case report: A Male patient, Banfar, aged 22, visited the Department of Movement Science in conjunction with an Orthopaedic physical therapist due to lower back pain. We proceeded to gather the patient's history and demographic information, including presenting symptoms of difficulty in sit-to-stand movement. The diagnosis made by using Kinovea software was mechanical low back pain or lumbosacral dysfunction. We discovered that he had a sacral sitting posture instead of an ischial tuberosity sitting posture, and he also had an improper coping style when transitioning from sitting to standing. He was a medical student. We recommended treatment for him to correct his posture and improve his sit-to-stand movement phases and patterns. The study utilized kinematics analysis of sit-to-stand and postural correction as outcome measures.