堀安, 高綾

村松, 成司

佐野, 裕司

片岡, 幸雄

HORIYASU, Takaaya

MURAMATSU, Shigeji

SANO, Yuji

KATAOKA, Yukio

[ABSTRACT] This time we joined a short-term (four days and three nights) navigation for the experiment on board our training-ship, Shioji-Maru to analyze the working condition of eight sailors in connection with the substance of duties, the amount of energy consumption and intake, and the heart rate. The results obtained are as follows:(1) The amount of energy consumption per day increased in the order of the chief steward, engineer, navigation officers, the chief engineer and the captain. (2) Two groups were formed with regard to the amount of energy intake per day. The group with larger intake (more than 2400kcal) showed the tendency to take excessive intake as compared with the amount of energy consumption. While one group with smaller intake (2000kcal) showed the tendency to take insufficient intake. (3) The average %HRmax with each operation on board the ship was 45~55% for navigation officers at the time of entering and departing from ports, during the watch by engineers and during the meal-preparation time of the chief steward. But it was around 40% during the watch by the captain, the chief engineer and navigation officers as well as in the sedentary whole of the captain. (4) There was significant correlation between the amount of energy consumption per minute per weight and the average %HRmax during operation on board the ship(r=0.898,p<O.O1). (5)There was significant correlation between the rate of energy consumption and intake on board the ship and the average %HRmax during operation on board the ship(r=-0.824,p<0.01).