A–Z Glossary

Contraction duration

Contraction duration is the time from when uterine tightening begins until the uterus has completely relaxed.

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How contraction timing changes over labor

How contraction timing changes over labor

What contraction timing measures Contraction timing describes several related features of uterine activity. Frequency is usually measured start-to-start: the time from the beginning of one contraction to the beginning of the next. Duration is how long an individual contraction lasts. Interval or rest time is the space between the end of one contraction and the […]

Average contraction duration and how it changes over time

Average contraction duration and how it changes over time

What contraction duration means A uterine contraction is a period during which the myometrium, the muscular wall of the uterus, tightens and then relaxes. Contraction duration is the time from the moment tightening begins until the uterus has relaxed. Frequency or interval is commonly described as the time from the start of one contraction to […]