2014 (53)
2015 (70)
2016 (66)
人到中年,特别是女性,每年自身肌肉量以1%以上的速度消失。如果还能保持一定的肌肉线条,胜过一切锦衣华服。现实中达到这一目的,并不是一件轻而易举的事情。
肌肉的保持和增长有三个基本要素:
1. 足够大的负重重量和强度。肌肉有快肌慢肌之分(红白肌肉纤维)。只有大重量练习时,快肌纤维才参与工作,而肌肉量(容积)的保持,更不要说长大长粗,正是这些肌肉起了主要作用。当然,力量练习要循序渐进,从较轻负重开始。
肌肉的工作原理还有一条是,“要么就全部参与,要么就不参与”,没有足够大的肌电信号传入(大重量刺激),某些肌肉永远都得不到锻炼的机会(人体有600来块骨骼肌)。
2. 足够的生长激素/睾丸酮等激素(别笑,女人也有),中老年女性激素水平非常的低。训练是否有效,恢复是否快速完全,全靠这个激素参与了。整体的身体素质和健康水平可能会影响一个人的激素水平。
3. 足够的蛋白质摄入,人体所有的零部件都是有蛋白质中的氨基酸组成。力量练习本身是个对肌肉组织的破坏过程(微创伤Catabolism),蛋白质参与修复和重组过程(肌肉增长Anabolism)。素食者或蛋白质摄入不足者,不容易保持肌肉量。
任何体力活动和锻炼都是十分有益的,尽管锻炼效果有时肉眼看上去不很明显。要知道相当多的人体骨骼肌是用来支持身体形态的(腰部脊椎两侧等部位),这些肌肉保障了腰椎稳定及全身骨骼系统的健康(骨密值度)。
另外,肌肉量在人体日常代谢中的重要作用(保持健康体重和防止2型糖尿病)就不在这里赘述了。
有用,太有用了!激素荷尔蒙水平低,不容易长肌肉,当然也不担心长成“肌肉女”。
I'm pretty much sure that the answer is positive for your last question.
well said.
tell you one story: I have an aunt she is fashion guru and beautiful. but she has cancers( more than one) , not exercises. she looks amazing good with clothing on. one day in the shopping mall in an store , she was try new outfit, because the fitting room was full, she was trying in the hall way. I got in , I was horrified by see that she was so thin and weak. I can not forget that moment.
you are so right , woman no matter what age is , we should have muscle and tune up the muscle. even the teens , girls has sports in school are much more popular than those do not do sports.
one question , can sports( the weight work out ) booting both the 荷尔蒙level?
women with low hormone level has low mood, closer to the depression . is this true?
回坛的老朋友们我一个也没忘,一如既往地潜水关注!