Parameter | Component | Functional change | [Ca 2+ ] (mM) | Pacing rate (Hz) | Duration of GDX (weeks) | Species | Reference |
---|---|---|---|---|---|---|---|
Cell shortening | Peak contraction | ↔ | 1 | 0.5 | 16 | Rat | [91] |
a↓ | 0.5–2 | 0.5 | 2 | Rat | [99] | ||
Relaxation rate | aSlowed | 1 | 0.5 | 16 | Rat | [91] | |
0.5–2 | 0.5 | 2 | Rat | [99] | |||
Intracellular Ca2+ | Peak Ca2+ transient | ↔ | 1 | 0.2 | 9 | Rat | [76] |
 | a↓ | 0.5–2 | 0.5 | 2 | Rat | [99] | |
Ca2+ transient decay rate | aSlowed | 0.5–2 | 0.5 | 2 | Rat | [99] | |
 | 1 | 0.2 | 9 | Rat | [76] |