Fig. 4
a The diameter and b the radial stiffness of the A-band region of Dextran-treated single myofibrils as a function of Dextran concentration. Rigor (filled circle), contracting (opened triangle) and relaxed (opened circle) myofibrils. Dashed traces in (a) are the thickness of the rigid core. Each data point was normalized by that for myofibrils in the rigor state without Dextran treatment. See text for details