Fig. 5
Force–distance curves for the A-band region of a single myofibril in a rigor and b relaxing solutions having various ionic strengths. The ionic strength was a 200 mM, b 140 mM, c 80 mM, and d 20 mM. The origin of the abscissa is the position of the cantilever at the surface of the cover slip. Arrows the tip of cantilever just made contact with the surface of myofibrils. Asterisk force versus distance curves for the cover slip