Brun T A, Geissler C A, Mirbagheri I, Hormozdiary H, Bastani J, Hedayat H
Am J Clin Nutr. 1979 Oct;32(10):2154-61. doi: 10.1093/ajcn/32.10.2154.
The energy cost of agricultural and standard activities and the daily energy expenditure of male agricultural workers were measured during different seasons in Iranian villages to assess the validity of past and present Food and Agricultural Organization recommended energy allowances for that population. Studies included low income farmers in a village representative of those around the central desert where harvesting takes place under conditions of extreme summer heat. Measurements were also made during the Moslem fasting period when no food may be eaten between dawn and dusk. Energy cost of typical activities was measured by indirect calorimetry using the Max-Planck respirometer and daily energy expenditure was assessed using these figures combined with a diary of activities throughout the 24-hr period. Results of individual activity values are compared with other published figures. Comparison of daily energy expenditure of fasting subjects and nonfasting after Ramazan showed no significant difference. No significant difference was found between values of standardized activities at high summer temperatures and moderate temperatures. Mean values of daily energy expenditure during winter when activity is low are around 2600 kcal/day and for the other seasons of high activity 3400 kcal/day. These figures suggest that past and present Food and Agricultural Organization standards are low for this population.
在伊朗村庄的不同季节，测量了农业活动和标准活动的能量消耗以及男性农业工人的每日能量支出，以评估过去和现在粮食及农业组织为该人群推荐的能量摄入量标准的有效性。研究对象包括一个村庄的低收入农民，该村庄代表了中部沙漠周边地区，那里在酷热的夏季进行收割作业。测量还在穆斯林斋戒期间进行，此时从黎明到黄昏期间禁食。典型活动的能量消耗通过使用马克斯·普朗克呼吸计的间接测热法进行测量，每日能量支出则通过结合24小时活动日记的这些数据来评估。将个体活动值的结果与其他已发表的数据进行比较。斋月后禁食受试者和非禁食受试者的每日能量支出比较显示无显著差异。在夏季高温和中等温度下标准化活动的值之间未发现显著差异。冬季活动较少时，每日能量支出的平均值约为2600千卡/天，而其他活动较多的季节为3400千卡/天。这些数据表明，过去和现在粮食及农业组织的标准对于该人群来说偏低。
