Shoenfeld Y, Udassin R, Shapiro Y, Birenfeld C, Magazanik A, Sohar E
Arch Phys Med Rehabil. 1978 Jun;59(6):281-4.
Twenty young men marched 6 and 12 km with a well-fitted back-pack load of 30 or 35 kg. Each subject served as his own control. No significant increase in mean heart rate, rectal temperature, or decrease in mean VO2 max and serum levels of glucose and muscle enzymes were recorded in the groups marching 6 km with 30 and 35 kg. Significant differences in the increases in mean heart rate, the decreases in VO2 max and the changes in blood glucose were noted between the two groups carrying 30 and 35 kg for 12 km. These significant differences were also supported by the subjective feelings of the volunteers. The present study shows the optimal back-pack load for healthy young men, marching at 6 km/hr on a paved level road to be 30 kg for 12 km and 35 kg for 6 km without considering the task too difficult and with no significant decrease in VO2 max. The results are relevant to hiking, rescue assignments, and military missions.
二十名年轻男性背负30或35千克装备精良的背包，分别行进6公里和12公里。每名受试者均作为自身对照。在背负30千克和35千克背包行进6公里的组别中，平均心率、直肠温度均未显著升高，平均最大摄氧量、血糖水平及肌肉酶水平也未降低。在背负30千克和35千克背包行进12公里的两组之间，平均心率增加、最大摄氧量降低及血糖变化存在显著差异。这些显著差异也得到了志愿者主观感受的支持。本研究表明，健康年轻男性在铺设好的平路上以每小时6公里的速度行进时，背负的最佳背包重量为：行进12公里时是30千克，行进6公里时是35千克，这样不会让任务过于困难，且最大摄氧量不会显著降低。这些结果与徒步旅行、救援任务及军事任务相关。
