Abstract
The purposes of this study were to estimate the take-off velocities necessary to gain a given distance on the triple jump by adopting three hypotheses and to investigate the external force vectors during the jump's supporting phase. The total distance corresponding to the varying combinations of horizontal and vertical velocities at take-offs were calculated based on these hypotheses. The calculated velocities of the body's center of gravity coincided well with the observed total distance, even though the velocities were slightly underestimated. There was a significant correlation between the run-up velocity and the total distance (r = 0.91, P less than 0.001). From these results, the run-up and take-off velocities and the external force vectors for an 18-m jump were estimated. It might be said that the 18-m jumper must gain great run-up velocity (10.7 m X s-1) and exert forces during each supporting phase which are 3.6-4.4 times the body weight, resulting in a force-vector angle of about 101 degrees at each take-off.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
