ANALYSIS OF MUSCLE STRENGTH CHARACTERISTICS FOR FLEXION AND EXTENSION OF THE KNEE JOINT IN FEMALE CYCLING ATHLETES

Abstract

The purpose of this study was to analyze the characteristics of muscle strength that is involved in extension and flexion of the knee joint in female cyclists. The flexion and extension exercise of the knee joint is the main source of the muscle power used by the bicycle athlete. It is also one of the subjects which attracts a great deal of attention from scientific researchers and instructors of physical culture both inside and outside of China. For the present study, an advanced CYBEX6000 dynamic testing equipment were used to carry out a considerable amount of research on athletes in various sports events. Based on the published studies from national and international, a specific theory, analysis and exploration were made to the working condition of muscle flexion and extension of the knee joint from the bicycle athlete. The following conclusion was gotten from the comparison between experienced athletes engaged in swimming and boat racing. It was found that athletes engaged in different sports, have different working characteristics of muscle strength from the knee joint. For the experienced bicycle athletes, with the acceleration of rotating speed of the knee joint, the descending degree of the maximum extension muscle torque is much greater than that of the flexion muscle.