Effect of the racket mass and the rate of strokes on kinematics and kinetics in the table tennis topspin backhand
| Autor: | Yoichi Iino, Takeji Kojima |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Male
medicine.medical_specialty Shoulder Physical Therapy Sports Therapy and Rehabilitation Kinematics Inverse dynamics Pelvis Sports Equipment Upper Extremity 03 medical and health sciences Backhand Young Adult 0302 clinical medicine Physical medicine and rehabilitation Upper trunk Racket medicine Elbow Humans 0601 history and archaeology Orthopedics and Sports Medicine Simulation Mathematics computer.programming_language 060101 anthropology Torso 030229 sport sciences 06 humanities and the arts Equipment Design Wrist Trunk Biomechanical Phenomena Kinetics medicine.anatomical_structure WRIST DORSIFLEXION Tennis Time and Motion Studies Arm computer |
| Zdroj: | Journal of sports sciences. 34(8) |
| ISSN: | 1466-447X |
| Popis: | The purpose of this study was to investigate the effect of the racket mass and the rate of strokes on the kinematics and kinetics of the trunk and the racket arm in the table tennis topspin backhand. Eight male Division I collegiate table tennis players hit topspin backhands against topspin balls projected at 75 balls · min(-1) and 35 balls · min(-1) using three rackets varying in mass of 153.5, 176 and 201.5 g. A motion capture system was used to obtain trunk and racket arm motion data. The joint torques of the racket arm were determined using inverse dynamics. The racket mass did not significantly affect all the trunk and racket arm kinematics and kinetics examined except for the wrist dorsiflexion torque, which was significantly larger for the large mass racket than for the small mass racket. The racket speed at impact was significantly lower for the high ball frequency than for the low ball frequency. This was probably because pelvis and upper trunk axial rotations tended to be more restricted for the high ball frequency. The result highlights one of the advantages of playing close to the table and making the rally speed fast. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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