Figure 1. Respresentative tracings of force (left) and [Ca²⁺]_i transients (right) at different doses of Angeli's salt (AS).

Both force development and [Ca²⁺]_i transient increased at higher AS concentrations. Experimental temperature was 22°C. Sarcomere length was set at 2.2–2.3 μm and [Ca²⁺]_o = 1.0 mm.