한국 육군 사병의 작업 대사량

Abstract

Determinations of energy metabolic rate were made on 302 Republic of Korea Army military personnels in various military activities. Indirect calorimetry was performed using the open circuit method. The mean age of healthy soldiers was 23(range 19-32) and body surface area was a mean of 1.63(range 1.42-1.85) square meter. Values of energy cost under various works were compared to the basal energy cost and this ratio was called energy metabolic rate(E.M.R.). The following data were observed. 1. Energy metabolic rate in shooting rocket was 1.68, Ml rifle shooting 2.11, and member in tank showed 1.43. These activities were performed by the upper extremities with certain special posture, and the magnitude of E.M.R. was less than 3. 2. Activities accompanied by 3 to 4 of E.M.R. value included driving a bulldozer(3.07) , driving a grader (3.29) , driving a tank(3.37) , and bombardment of artillery(3.17). In these activities both the upper and lower limbs were used. It seems that labors accompanying machinery works mobilizing only the upper and lower limbs have E.M.R. of between 3 to 4. 3. The hand muscular activities included marching of an infantry man with full arms(E.M.R. 4.16) , building a wood bridge(4.46), cleaning of a cannon (4.48) , carrying cannon bullets from pile to the shooting position(5.0D. E.M.R. ranged between 4 and 6. The mode of activies were relatively hard mUfcular work of upper and lower limbs accompanied by the movement of body trunk with or without load under moderate velocity. Muscular work with E.M.R. of less than 6 could be continued for a certain period. 4. Activities with E.M.R. of greater than 6 were digging a trench(6.33) and shovel work. This kind of muscular work could not be continued for a considerable period.