Variation in maternal strategies during lactation: The role of the biosocial context
Variation in maternal strategies during lactation: The role of the biosocial context
复制标题
哺乳期母亲策略的变化：生物社会环境的作用
DOI：
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发表时间：
2009
影响因子：
2.9
通讯作者：
B. Piperata
中科院分区：
文献类型：
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作者：
B. Piperata
与其他哺乳动物相比，母乳是稀释的，这降低了哺乳的相对每日成本，使妇女在满足哺乳能量需求的策略方面具有更大的灵活性。这些策略包括增加饮食摄入量，减少能量消耗，并利用能量储存。妇女受到她们所生活的生物社会环境的影响，包括哺乳期的性别分工、饮食和活动模式的规范，以及家庭层面的因素，如经济战略和社会支持的可用性。本文结合纵向数据的饮食摄入量，能量消耗和体重的23个哺乳期亚马逊妇女生活在一个以生存为基础的经济与详细的人种学数据，并考虑如何坚持文化规范和社会支持的可用性有助于人口内的变化，在产妇精力充沛的战略。膳食摄入量的变化超过能量消耗。在产后期间的resguardo坚持饮食限制显着降低了能量摄入的人群内变化。有社会支持的妇女在储备期（t = 2.8; P = 0.01）和泌乳高峰期（t = 2.7; P = 0.02）更接近能量平衡，体重下降更少（t = 3.6; P = 0.002）。有社会支持者在哺乳期能量（t = 2.1; P = 0.05）和碳水化合物（t = 2.1，P = 0.05）摄入量较高，在哺乳高峰期（t = 2.6，P = 0.03）和哺乳后期（t = 2.4，P = 0.03）用于维持生计工作的时间显著较少。案例研究被用来把这些发现的背景。Am. J.哈姆。Biol. 2009.© 2009 Wiley利斯公司
Compared to other mammals, human milk is dilute which lowers the relative daily cost of lactation allowing women greater flexibility in the strategies they use to meet the energy demands of lactation. These strategies include increasing dietary intake, reducing energy expenditure, and drawing on energy stores. Women are affected by the biosocial context in which they live, including norms regarding the sexual division of labor and diet and activity patterns during lactation, as well as household‐level factors such as economic strategy and the availability of social support. This paper combines longitudinal data on dietary intake, energy expenditure, and body weight of 23 lactating Amazonian women living in a subsistence‐based economy with detailed ethnographic data and considers how adherence to the cultural norms and the availability of social support contributed to intra‐population variation in maternal energetic strategies. Dietary intake was found to vary more than energy expenditure. Adherence to dietary restrictions during the postpartum period of resguardo significantly reduced intra‐population variation in energy intake. Women with social support came closer to achieving energy balance during resguardo (t = 2.8; P = 0.01) and peak lactation (t = 2.7; P = 0.02) and lost less weight (t = 3.6; P = 0.002) than those without such support. Those with social support had higher energy (t = 2.1; P = 0.05) and carbohydrate (t = 2.1, P = 0.05) intakes during resguardo and spent significantly less time in subsistence work during peak (t = 2.6, P = 0.03) and late lactation(t = 2.4, P = 0.03). Case studies are used to place these finding in context. Am. J. Hum. Biol. 2009. © 2009 Wiley‐Liss, Inc.
了解贫困城市妇女的营养：人种学和生物学方法。
影响因子：
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作者：
Dufour,DL;Staten,LK;Reina,JC;Spurr,GB
通讯作者：
Spurr,GB
DOI：
10.1249/00005768-199301000-00011
发表时间：
1993-01-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
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作者：
AINSWORTH, BE;HASKELL, WL;PAFFENBARGER, RS
通讯作者：
PAFFENBARGER, RS