Data for: The relationship between electromyography activation of the pelvic floor muscles and urogenital landmark motion seen on transperineal ultrasound imaging in healthy nulliparous women

Cross-Correlation coefficients and time lags between the onset of pelvic floor muscle EMG, recorded using a differential suction electrode, and urogenital landmark motion on transperinal ultrasound imaging in women performing a pelvic floor muscle voluntary contraction. Three separate raters determined EMG onsets and and onset of landmark motion using visual inspection .