Understanding human movement mechanics, would enhance physical therapist diagnose and cognize injury mechanism, and accordingly build rehabilitation protocols. Gender-based differences during stairs negotiation was the target of my PhD dissertation. This project revealed that females utilized more lower limb excursion and muscle activation to ascend and descend stairsthan males. The project used electromyography and 3D motion analysis to measure lower limb kinematics and kinetics. In collaboration with different research teams, several projects are conducted afterword focusing mainly on studying human spine, specifically spinal deformities, and low back pain. We received grant for two projects. One was concerned with human spinal posture and its correlation with muscle strength. It is published in European spine journal 2018. Another grant was awarded for a project investigated the instrumented planter flexors muscle torque performance. In addition, we conducted clinical trials to help establishing evidence in setting rehabilitation programs that have been presented at the world physiotherapy congress 2021. In line with the scope of kinetic analysis of motor control, a recent project concerned with motor control of spinal muscles in subjects with mechanical low back pain is conducted. Currently, we are working on several projects concerned with psychometric properties of different scales. Future work targets spinal motor control of neck and low back pain conditions.