著者

川﨑 規介 清水 健一 八木 光晴 高山 久明

出版者

公益社団法人 日本航海学会

雑誌

日本航海学会論文集 (ISSN:03887405)

巻号頁・発行日

vol.134, pp.52-57, 2016 (Released:2016-07-01)

参考文献数

12

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The Japanese boat “Wasen” uses “Ro-Scull” as a human-powered propulsion system. These traditional boats and propulsion system are almost vanished in Japan due to decrease in material Wood, and boat-builder’s aging. “Ro-Scull” is thought to be effective propulsive method compared to other human-powered boat such as canoe and cutter boat. In this study, we evaluate propulsive efficiency of “Ro-Scull” based on active metabolic rate (MR). We measured MR and metabolic equivalents (Mets) during “Ro-Scull”, Walking, and jogging exercise by using indirect calorimeter. MR and Mets during “Ro-Scull” exercise were nearly equal to walking ones. Energy conversion efficiency of “Ro-scull” was 12.3%. These suggest that propulsion efficiency of “Ro-Scull” is efficient, and its exercise can be done for a prolonged time as well as Walking. “Ro-Scull” exercise seems to be useful way to become familiar with maritime activities and seamanship.