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Striated muscle cell preparation characteristics
| n | Length (μm) | Width (μm) | Maximum force (P4.5) (kN m−2) | pCa for P/P4.5 | P/P4.5 | |
|---|---|---|---|---|---|---|
| Fast-twitch fibres | 10 | 1040 ± 238 | 124 ± 18 | 119 ± 32 | 6.0 | 0.52 ± 0.07 |
| Slow-twitch fibres | 8 | 1034 ± 154 | 91 ± 11 | 133 ± 30 | 6.05 ± 0.05 | 0.47 ± 0.11 |
| Cardiac myocytes | 19 | 115 ± 30 | 20 ± 5 | 71 ± 24 | 5.86 ± 0.08 | 0.53 ± 0.11 |
Values are means ±s.d.P/P4.5, fraction of maximum isometric force (P4.5). pCa for P/P4.5, pCa solution used for sarcomere length–tension relationships.
