新的研究证实，该基因加新的9种基因可以调节心脏收缩期，以QT间期来衡量。
The new study identifies that gene plus nine new ones that modify the timing of heart contractions, a measure known as the QT interval.
根据瓣膜原理，第一心音(S1)是在心脏收缩期由二尖瓣和三尖瓣关闭时引起的振动产生的，含有多个频率分量。
According to the valvular theory, the vibrations affected by the mitral and tricuspid valves closure in early systole produce the first heart sound (S1). S1 usually includes many frequency components.
不一会儿，你就能通过单项测量或者三项测量的平均，看到自己的心率和心脏收缩、扩张期。
Moments later, you'll see your heart rate, Systole and Diastole — based on either a single measurement or the average of three measurements in a row.
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