Fig. 2. (A , left ) Exploded view of individual shortening and intracellular Ca2+concentration ([Ca2+]i) transients taken from (a ) control and (b ) propofol (= 10 μm) in fig. 1A. (Right ) Overlay of the individual cell shortening and [Ca2+]itransient normalized to peak height to demonstrate changes in timing. (B ) Hysteresis loops depicting the continuous Ca2+:shortening relations.