Experimental Measurements of the Human Knee Flexion Angle during Squat Exercises

In this paper the knee joint biomechanics during squat exercises is studied. Using an acquisition system based on electro-goniometers, measurements of flexion-extension knee angle during squat movement on a sample group of healthy subjects are performed. For each subject the curves of knee squat angle are normalized and the mean squat cycle of each subject and the final medium cycle are determined. The phase plane portraits are used to characterize the kinematics of the biomechanical system. Using ADAMS software, the forces components and the resultant connection force during squat cycle in the human knee joint are determined.