The impact of racket string tension on tennis racket performance

This paper investigates the impact of tennis racket string tension, within the same material, on the effectiveness of ball striking.The images were recorded by a high-speed camera, and 8 kinds of string pounds were used in the experiment to fix the frame of the tennis racket, and a homemade ball dispenser was used to launch tennis balls with different incidence velocities and angles to the geometric center of the racket head.Within the tested range, the 40-pound string tension demonstrated the highest coefficient of restitution (COR), while the 70-pound tension showed a comparatively lower value.