This research is aimed to apply a contraction motion of a cultured muscle to the engineering field. The muscle cell can be contracted by the electrical stimulation. To stimulate the muscle cell, voltage was applied to the culture medium with cells. The membrane potential change by the electrical stimulation was measured using the microelectrode and analyzed employing equivalent model of the cell. Then, current was applied to the intraceller using the microelectrode. The membrane potential change by the electrical stimulation was measured using the microelectrode and the quantity of contraction was measured by a digital image analysis. These results considered an association between the membrane potential change and the quantity of contraction.
