Parameters of the spark frequency model
| Parameter | HTG | aHTG | Comments |
| τO (ms) | 15 | 15 | Gaburjakova and Gaburjakova, 2006 |
| trd (ms) | 15 | 15 | Brochet et al., 2005; Kubalová et al., 2005; Terentyev et al., 2006; Zahradníková et al., 2007 |
| trp (ms) | 1,300 ± 280 | 713 ± 80 | Fitted parameter |
| nRYR | 182 | 182 | Soeller et al., 2007 |
| νCRU (µm−3) | 1.01 | 1.01 | Soeller et al., 2007 |
| Parameter | HTG | aHTG | Comments |
| τO (ms) | 15 | 15 | Gaburjakova and Gaburjakova, 2006 |
| trd (ms) | 15 | 15 | Brochet et al., 2005; Kubalová et al., 2005; Terentyev et al., 2006; Zahradníková et al., 2007 |
| trp (ms) | 1,300 ± 280 | 713 ± 80 | Fitted parameter |
| nRYR | 182 | 182 | Soeller et al., 2007 |
| νCRU (µm−3) | 1.01 | 1.01 | Soeller et al., 2007 |
τO, mean RYR open time. trd, release duration, approximately equal to the time to peak of calcium spark (Smith et al., 1998). trp, refractory period for calcium release. nRYR, number of RYR channels in the release site. νCRU, the numerical density of calcium release sites.