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The effect of three run-up techniques on kinetic and kinematic variables of the stag ring leap with throw-catch of the ball in rhythmic gymnastics

Akkari-Ghazouani Hounaida, Amara Samiha, Chtara Mokhtar, Mkaouer Bessem

Acta of Bioengineering and Biomechanics

2022

Vol. 24, no. 4

109--118

The aim of this study was to compare the effect of three run-up steps on the kinetic and kinematic variables of the stag ring leap, with throw-catch of the ball, in high-level rhythmic female gymnasts. The three run-up steps used are a chassé step, glissade, and assemblé. Methods: Seven high-level rhythmic female gymnasts participated in this study. Three run-up steps (i.e., chassé step, glissade and assemblé) were used randomly to perform a stag ring leap with throwing a ball on the jump take-off. 2D kinetic and kinematic analysis was conducted. Results: The results indicated that the assemblé step used in the run-up technique generated greater values of the rate of force development, the highest values of vertical velocity, and the best vertical displacement. In addition, the assemblé step allows for the best opening angle of the split leap and the best closest angle of the ring leg. The same was noted for the front leg’s angular velocity. Conclusion: We concluded that the assemblé step used in the run-up technique appears to favor a greater stag ring leap that meets the Code of Points’ condition for admitting the jump, as well as numerous studies that focus on improving jumping abilities in rhythmic gymnastics.