Noun. 1. Mountain Standard Time-standard time in the 7th time zone west of Greenwich, reckoned at the 105th meridian west; used in the mountain states of the United States. Mountain Time, MST.
Best Answer: I will highlight 3 simple and commonly used type of heart rate: Max HR = 220 - age Target HR = (220 - age) % of intensity Resting HR = Measured while awake but still in bed 50 to 80, regular exercise or sportsman = 35 to 50 Average HR for adult = 60 to 90, Average HR for teenage boy or girl = 60 to 80.
The resting heart rate decreases as kids get older. Typical normal resting heart rate ranges are: babies (birth to 3 months of age): 100â150 beats per minute; kids 1â3 years old: 70â110 beats per minute; kids by age 12: 55â85 beats per minute; A doctor can determine whether a heart rate is abnormally fast or slow, depending on a person's situation.