Interactive CD-ROM focusing on the physiology of striated muscle in the leg of the frog. The program is divided into three sections: Wetlab, Preparation, and Practical course. Featured experiments include single twitch as a function of stimulation intensity, superimposition of double stimuli, tetanic contractions, resting tension curve, curve of isometric maximum values, curve of isotonic maximum values, force-shortening velocity relationships, and fatigue experiments.