9th International Biomechanics Congress, Eskişehir, Turkey, 19 - 21 September 2018
The aim of the present study was to determine subject-specific feedback control parameters for knee joint during back squats with varying loads. For this purpose, a proportional-derivative based real-time feedback control system, assisted by an inverse dynamics solution, was implemented at the knee joint in a four-segment biomechanical model of the performer. The parameters of the controller were tuned for each load. It was found that control parameters increase with the load and there is a certain relationship between them. Consequently, a subject-specific quantifier for motion control, in particular for the knee joint during back squat, was introduced from a robotics perspective.