Eight breathsperminute or less is considered slow.
判断标准为每分钟呼吸次数等于或少于八次就为偏慢呼吸。
2
We know that for most people their resonant frequency is between 7.5 and 4.5 breathsperminute.
我们知道对大多数人来说,他们的共振频率介于每分钟4.5次至7.5次呼吸之间。
3
Cyclists breathed more frequently and took more deep breaths than car passengers. They breathed in and out about 4.3 times more air perminute than car passengers.