Motility speed (% control) is compared in the intermediate expanded model between (a) 0.5 Hz, 5 Hz, and 50 Hz sine wave stimulation and (b) 14 Hz and 0.5 Hz pulse stimulation at 1 mA. In the advanced model, motility speed (% control) is compared between (c) 0.5 Hz, 5 Hz, and 50 Hz sine wave stimulation and (d) 14 Hz and 0.5 Hz pulse stimulation at 1 mA. N = 9 for all groups; error bars show standard error.