 The study otherwise followed the protocol used in our initial study of electrical foot stimulation. Subjects were seated for 4 hours in chairs placed at a fixed distance apart. They were constantly monitored throughout the study to ensure that they remained seated. Subjects were allowed to use a bathroom located several feet away only twice during the 4 hour period. During the 4 hour study period subjects were offered a maximum of 16 ounces of fluid and a normal lunch. 