Table 4 Comparison of frequency parameters between pregnancy and labor contractions ( and indicate a significant difference of 5% and 1%, respectively between pregnancy and labor parameters). Min. ., Max. ., MF and stand for Minimal Frequency, Maximal Frequency, Mean Frequency and Frequency of the Maximal Energy, respectively. These parameters were computed directly in the time-frequency domain.

From: Synchronization between EMG at Different Uterine Locations Investigated Using Time-Frequency Ridge Reconstruction: Comparison of Pregnancy and Labor Contractions