deceleration

(redirected from early deceleration)
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Related to early deceleration: late deceleration, variable deceleration

deceleration

[dē‚sel·ə′rā·shən]
(mechanics)
The rate of decrease of speed of a motion.
References in periodicals archive ?
Early decelerations have slow onset that coincides with the start of the contraction and a slow return to the baseline that coincides with the end of the contraction.
TABLE 1 3-tier fetal heart-rate classification system Category Description I Fetal heart-rate (FHR) tracings include all of the following: * baseline rate is 110-160 bpm * baseline FHR variability is moderate * accelerations are present or absent * late or variable decelerations are absent * early decelerations are present or absent II Includes all FHR tracings not included in Category I or Category III III FHR tracings include: * absent baseline FHR variability plus: --recurrent late decelerations --recurrent variable decelerations --bradycardia * sinusoidal pattern Source: Adapted from Macones GA, et al.