stomach workout
胃的锻炼
以上为机器翻译结果，长、整句建议使用 人工翻译 。
There are caveats, of course. Exercising on an empty stomach is unlikely to improve your performance during that workout.
当然，需要注意的是，运动过程中空腹锻炼不可能提高运动效果。
youdao
The magazine said one book gave "potentially dangerous advice on doing a vigorous workout on an empty stomach and with low carbohydrate intake, which could lead to dizziness and fainting".
BBC: Health risk of 'faddy diets'
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