Population
Hyperpermeable segments of single muscle fibers from rabbit soleus muscle
Comparison
Varying calcium ion concentrations and MgATP… vs Different concentrations of calcium and MgATP
Design
Preclinical
Authors
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No immediate clinical implications for human muscle disorders; leaves open whether MgATP effects on cross-bridge kinetics translate to cardiac or human fibers.
Low substrate concentrations, but not low calcium ion concentrations, influence cross-bridge kinetics under steady-state isometric conditions in rabbit soleus muscle fibers.
Krasner et al. (1983) studied this question.
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