Costs and benefits of fat-free muscle mass in men: relationship to mating success, dietary requirements, and native immunity
Costs and benefits of fat-free muscle mass in men: relationship to mating success, dietary requirements, and native immunity
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DOI：
10.1016/j.evolhumbehav.2009.04.002
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发表时间：
2009-09-01
影响因子：
5.1
通讯作者：
Gaulin, Steven J. C.
中科院分区：
文献类型：
--
作者：
Lassek, William D.;Gaulin, Steven J. C.
平均而言，男性的肌肉质量比女性多 61% (d=3)，这种性别差异在发育上与男性的睾酮水平高得多有关。更大的男性肌肉质量的潜在好处包括增加交配机会，而潜在的成本包括增加饮食要求和降低免疫功能。使用第三次全国健康和营养检查调查中 18-59 岁男性的数据并包括其他相关变量，去脂体重 (FFM) 和/或肢体肌肉体积 (LMV) 是自我报告的性伴侣总数和过去一年的数量以及首次性交年龄的重要预测因素。在成本方面，FFM 和 LMV 是每日能量摄入量的强正预测因子，也是 C 反应蛋白和白细胞计数（天然免疫指标）的强负预测因子。 (C) 2009 Elsevier Inc. 保留所有权利。
On average, men have 61% more muscle mass than women (d=3), a sex difference which is developmentally related to their much higher levels of testosterone. Potential benefits of greater male muscle mass include increased mating opportunities, while potential costs include increased dietary requirements and decreased immune function. Using data on males aged 18-59 years from the third National Health and Nutrition Examination Survey and including other relevant variables, fat-free mass (FFM) and/or limb muscle volume (LMV) are significant predictors of the numbers of total and past-year self-reported sex partners, as well as age at first intercourse. On the cost side, FFM and LMV are strong positive predictors of daily energy intake and strong negative predictors of C-reactive protein and white blood cell count, measures of native immunity. (C) 2009 Elsevier Inc. All rights reserved.