Table 1.

Summary of cell-SPOC parameters used for the discussion on the experimental findings of OM

Parameter	Physiological meaning	+OM
		Parameter change	Amplitude	Frequency
α	Crossbridge attachment rate	↑	↑	↓
η	Molecular frictional constant for crossbridge formation	↑	↓	↓

Our mathematical model (Sato et al., 2011) predicts that OM decreases frequency via an increase in α and an increase in η, but the compound hardly changes amplitude because the effect of an increase in α is offset by that of an increase in η (see Results and discussion). Amplitude, cell-SPOC amplitude; frequency, cell-SPOC frequency. Arrows, directions of change.