Croak of the frog

かえるが英語の勉強。 あまりギスギスせずにネット記事読んだり日記を書きながら。

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Metabolism 1 メタボ1

The term 'metabolic rate' refers to the energy (calories) you expend over a day just keeping your body functioning - your heart beating and your lungs breathing, for example. This is often called the basal or resting metabolic rate.

Scientists have measured the exact amount of calories overweight and healthy weight people burn while sitting or lying quietly. This was done by measuring the amount of oxygen breathed in and the amount of carbon dioxide breathed out.

Results from these studies have consistently shown that overweight people use more energy to keep their bodies working. This is because they have larger bodies with bigger muscles and internal organs.

However, after taking into account differences in body size, lean and obese people have been shown to have similar metabolic rates.

Basal metabolic rate can be influenced by body composition. Muscle requires more energy to function than fat. As we get older, we tend to gain fat and lose muscle. This explains why basal metabolic rate tends to decrease with age.

Similarly, two people of the same age and weight may have different metabolic rates if one is fitter (and has more muscle) than the other.

Of course, we also use energy to move around during the day. Basal metabolic rate and the energy required for physical activity make up our total energy expenditure, or total energy needs. Your total energy needs depend very much on how active you are.
http://www.bbc.co.uk/health/healthy_living/your_weight/medical_myths.shtml (BBC NEWS)
<-- ここまで引用 -->

expend - 費やす
basal : 基礎の (base all が語源らしい)
take - into account : ~を考慮する
expenditure : 消費、支出

まあ当たり前の事ですね。
太ってる人も痩せてる人も基礎代謝"率"は変わりません。
ただ、太ってる人は大きな体を動かすために基礎代謝"量"は多くなります。
読む分には簡単な内容なんだけど、これだけの文章を書けと言われたらなかなか書けないなぁ(´・ω・`)
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