Researchers conduct biomechanical analysis of human linear gait or sprint motion. They collect detailed movement data using motion-capture systems. At the same time, they record ground reaction forces with force plates.
First, they place reflective markers on key body points of the participants. Next, high-speed cameras track these markers during walking or sprinting trials. As a result, the system generates precise three-dimensional position and velocity data for each segment.
Meanwhile, force plates measure the forces that the feet apply to the ground. Therefore, researchers can calculate joint moments, power, and energy flow. Moreover, they focus specifically on the acceleration phases of the movement. In these phases, the body rapidly increases forward speed.
In addition, the analysis examines how mechanical energy transfers between body segments. Finally, the combined motion-capture and force-plate data reveal efficient patterns of force application and energy use. This approach helps scientists understand performance differences and improve training methods.