增肌不只是练出来的,更是算出来、吃出来的。身体只有在能量有剩余的时候,才会考虑去投资肌肉的合成。
This lesson is part of the learning plan: '科学增肌营养全攻略:从基础到实战'. Lesson topic: 热量盈余:肌肉生长的先决条件 Overview: 学习如何计算基础代谢率(BMR)与每日总消耗(TDEE),并设定科学的增肌热量目标。 Key insights to cover in order: 1. 热量盈余原则:每日摄入需比消耗多300-500大卡 2. 使用Mifflin-St Jeor公式精确计算个人TDEE 3. 监测体重变化:每周增重0.25-0.5kg为理想状态


根据运动营养学的研究,超过80%的健身者无法达到预期效果是因为饮食问题。增肌的本质是能量溢出的过程,身体只有在摄入热量大于消耗热量(热量盈余)的情况下,才会将多余的能量用于合成肌肉。如果你练得非常辛苦但吃得不够,身体不仅不会长肌肉,反而可能因为能量不足而变得更加疲惫甚至消瘦。
科学的增肌建议是实现“渐进式盈余”,即每日摄入的热量比你的每日总消耗热量(TDEE)多出300到500大卡,或者增加10%到15%的摄入量。这个范围能最大限度地促进肌肉生长,同时避免因热量过剩过多而导致脂肪大量堆积。
首先,你需要通过Mifflin-St Jeor公式计算基础代谢率(BMR),即维持生命所需的基本热量。男性公式为:10×体重(kg) + 6.25×身高(cm) - 5×年龄 + 5;女性则为:10×体重(kg) + 6.25×身高(cm) - 5×年龄 - 161。算出BMR后,根据你的运动强度乘以活动系数(如轻微运动为1.375,高强度运动为1.725)得到TDEE,最后在TDEE基础上增加300-500大卡即为你的增肌目标热量。
增肌饮食应围绕“热量盈余加蛋白质充足”展开。建议每公斤体重摄入1.6到2.2克蛋白质以支持肌肉合成;碳水化合物应占总热量的40%到50%,作为训练的能量来源;脂肪则占20%到30%,用于维持激素水平(如睾酮合成)。在实操中,可以采用少量多餐的方法,并在训练前后重点补充易消化的碳水和蛋白质。
最直观的监控指标是体重的动态变化。在理想状态下,每周增重应控制在0.25到0.5公斤之间。如果每周增重超过0.5公斤,说明热量摄入过多,长的可能大多是脂肪;如果连续两周体重没有变化,则说明未达到热量盈余,需要适当增加进食量。建议每天早晨空腹称重以获得最准确的数据趋势。
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