心率

心率係指心跳嘅頻率，通常係講心臟每分鐘跳咗幾多下。正常人平靜嗰陣每分鐘心率係60到100次，運動嗰陣心跳會加快。

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 Online Heart Beats Per Minute Calculator Tap along with your heart rate
 An application (open-source) for contactless real time heart rate measurements by means of an ordinary web cam

心