Table 4.

Effects of external [Ca2+] on macroscopic activation and deactivation kinetics

[Ca2+] Ipk RT τw 
mM pA ms ms 
0 170 ± 50 4.4 ± 0.8 39 ± 5 
1.8 130 ± 40 5.7 ± 1.1a 59 ± 5a 
a

P < 0.05 relative to 0 mM Ca2+ (paired t test).

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