Illingworth P J, Jung R T, Howie P W, Leslie P, Isles T E
Br Med J (Clin Res Ed). 1986 Feb 15;292(6518):437-41. doi: 10.1136/bmj.292.6518.437.
Energy expenditure at rest and in response to a meal and to an infusion of noradrenaline was measured in 12 lactating women and compared with that in seven bottle feeding women and seven non-pregnant, non-lactating controls. The energy response of the lactating women was remeasured after lactation stopped. During lactation the resting metabolic rate was unaltered but there was a reduced response to infusion of noradrenaline and to a meal, which increased to normal control values after lactation stopped. Such reductions in expenditure were not found in women who had been bottle feeding and were tested at a similar six to eight weeks post partum. These findings suggest that metabolic efficiency is enhanced in lactating women, who may not need to increase energy intake to the extent suggested by current recommended dietary allowances.
对12名哺乳期妇女在静息状态下、进食后以及输注去甲肾上腺素后的能量消耗进行了测量，并与7名人工喂养妇女和7名非孕非哺乳期对照者进行了比较。哺乳期结束后再次测量了哺乳期妇女的能量反应。哺乳期静息代谢率未改变，但输注去甲肾上腺素和进食后的反应降低，哺乳期结束后该反应增加至正常对照值。在产后六至八周进行测试的人工喂养妇女中未发现这种能量消耗的降低。这些发现表明哺乳期妇女的代谢效率提高，她们可能不需要按照目前推荐的膳食摄入量建议那样增加能量摄入。
