scholarly journals Realization and Swimming Performance of the Butterfly Stroke by a Swimming Humanoid Robot

2017 ◽  
Vol 6 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Motomu Nakashima ◽  
Chang-Lung Tsai
2014 ◽  
Vol 26 (2) ◽  
pp. 265-266 ◽  
Author(s):  
Changhyun Chung ◽  
◽  
Motomu Nakashima ◽  

The objective of this study was to develop a humanoid robot for research about human swimming. In order to replace a swimmer as a subject, a humanoid robot “SWUMANOID” was developed imitating the details of a human, such as appearance and body properties. To reproduce the swimming motion based on that of an actual swimmer, a joint imitating the human’s scapular retraction was installed and the methodology to realize the swimming motion with that joint was established. To validate the performance of the robot, two experiments were conducted. The crawl stroke motion was examined in the fixed state and the swimming performance was validated by a free swimming experiment.


Author(s):  
Maciej Hołub ◽  
Arkadiusz Stanula ◽  
Jakub Baron ◽  
Wojciech Głyk ◽  
Thomas Rosemann ◽  
...  

Here we describe historic variations in Olympic breaststroke and butterfly performance and predict swimming results for the 2021 Olympic Games in Tokyo. The results of the finalists, winners, and last participants in the women’s and men’s finals were analyzed, and a mathematical predictive model was created. The predicted times for the future Olympics were presented. Swimming performance among Olympians has been steadily improving, with record times of 18.51 s for female finalists in the 100 m butterfly (a 24.63% improvement) and 31.33 s for male finalists in the 200 m butterfly (21.44%). The results in all analyzed groups showed improvement in athletic performance, and the gap between the finalists has narrowed. Women Olympians’ performances have improved faster than men’s, reducing the gap between genders. We conclude that swimming performance among Olympians is continuing to improve.


2019 ◽  
Author(s):  
Aleksandra Mikov ◽  
Dragana Vukliš ◽  
Branislav Borovac ◽  
Milan Gnjatović ◽  
Jovica Tasevski ◽  
...  
Keyword(s):  

Author(s):  
Marlete Silva ◽  
José Maurício Santos Torres da Motta
Keyword(s):  

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