define duration of a contraction
This not only includes the duration of one contraction, but also the rest period between the two. So if you have a contraction at. and it lasts for 60 seconds, and then you have another contraction at. , the contractions have a duration of 60 seconds and a frequency of 15 minutes.The intensity of the contractions also changes as labor progresses.Early labor contractions are often described as mild menstrual cramps. the contractions have a duration of 60 seconds and a frequency of 15 minutes. The intensity of the contractions also changes as labor progresses. Early labor contractions are often described as mild menstrual cramps.