• Corpus ID: 55645544

A STUDY TO INVESTIGATE THE RELIABILITY AND CONSISTENCY OF THE SPORTS TUTOR TENNIS CUBETM VELOCITY, TRAJECTORY AND LANDING POINTS

@inproceedings{Norris2012AST,
  title={A STUDY TO INVESTIGATE THE RELIABILITY AND CONSISTENCY OF THE SPORTS TUTOR TENNIS CUBETM VELOCITY, TRAJECTORY AND LANDING POINTS},
  author={Michelle Norris and Sarah Breen and Ross Anderson and Ian C. Kenny},
  year={2012}
}
The purpose of this study was to investigate the reliability and consistency of the Sports Tutor Tennis CubeTM ball launcher. Five identical (mass, diameter) competition standard tennis balls were each launched twenty-five times and flight was assessed using 3D infra red motion analysis. 3D resultant velocity was found to be 18.9 ± 0.89 m/s, landing points had a coefficient of variation in the lateral direction of 8.28% and 18.4% in the vertical direction Trajectory was also projected to… 

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