Kinematics analysis of freestyle swimming athletes at the 2019 Indonesia Open Aquatic Championship (IOAC)

This study aims to determine the kinematics of the men's 50 meter and 100 meter freestyle swimming athletes. This research method uses quantitative descriptive with 50 meter swimmers and 100 meter freestyle men at the 2019 IOAC championship. The instrument used was a Sony Rx-10 Mark IV camera placed in the highest stands at a distance of 25 m in a 50-meter pool. The video results were
analyzed using the Kinovea 0.8.27 software by calculating the SF, SV, SR, and SL. The results showed that the average number of a 50-meter had and SF of 13.06, SV of 1.89 m.s-1, SR of 59.08 cycles.min-1, and SL of 1.92 m.cycle -1. For the 100 meter number, the average SF value is 11.8 at a distance of 50-meter an 12.08 at 100 meter. In comparison, the SV average is 1.73 m.s-1 at a distance of 50 and 1.72 m.s-1 at a distance of 100-meter. For SR, the average is 46.35 cycles.min-1 distance of 50 meter and 50, 2 100 m distance. For SL, the average is 2.25 m.cycle-1 distance of 50-meter and 2.08 distance of 100-meter. In conclusion, there are differences in the kinematics of swimming between the men's50 meter and 100 meter freestyle in SV and SR, while those in SF and SL tend tobe the same. For further research, it is expected to examine other kinematic parameters such as start, underwater, height, arm length, and others to know more about things that can support swimming performance.