Kinematic comparison of the one-handed and two-handed tennis backhand techniques
Cardiff Metropolitan University
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The aim of this study was to examine and compare the one- and two-handed tennis backhand techniques to deduce which is the most mechanically effective and efhcient. Five male and five female collegiate-level tennis players with a mean age of 21.6 + 1.43 years took part in the study. Five participants used the one-handed technique and five used the two-handed technique. Two digital cameras filmed each participant hitting backhands into a target arca. A speed trap recorded the ball velocity of each backhand trial. An APEX/TARGET digitising system digitised the footage of each trial. Joint angular displacements and velocities were found using the CODA motion analysis system. A significantly greater amount of elbow joint angular displacement was found to occur in players using the two-handed technique. No significant difference was found between techniques for the amount of shoulder joint angular displacement. Joint angular velocities throughout the backhand movement were found to vary for the two techniques, as mean joint angular velocity results showed that the twohanded backhand moved in a proximal to distal sequence, unlike the one-handed backhand. A greater amount of variance in technique was found between participants using the two-handed stroke, compared to the one-handed stroke. No significant difference was found in the time from forward swing to impact or in postimpact ball velocity between the one- and two-handed backhands. It was concluded that both techniques have certain advantages and that neither backhand was more mechanically effective or effrcient. Further analysis of the backhand movement when performed in different situations would assist in deducing which backhand technique is the most advantageous.
BSc (Hons) Sport, PE and Recreation
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