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Force generated (or supported) by each cross-bridge state. □ Rabbit psoas fibers (replotted from Kawai and Zhao 1993). ■ Rabbit soleus slow twitch fibers (plotted from data published by Wang and Kawai 1997). The data are normalized to the force generated in response to standard activation (TC), which is a mixture of all states. The Det state includes both weakly attached states (AM.ATP, AM.ADP.Pi) and truly detached states (M.ATP, M.ADP.Pi). Error bars represent SEM
