Low-angle X-ray diffraction provides average structural information about molluscan smooth muscle during contraction.
Current methods yield only averaged structural data in contracting muscle; leaves open single-fiber resolution of contraction dynamics.
Experiments with intact muscles by methods of low-angle X-ray diffraction provide unique information in that structural features can be studied both in the resting and activated states at or near the molecular level. But as regards the timing and the nature of the structural changes in actively contracting muscles, the techniques available at present only indicate what happens in average terms.
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Lowy et al. (1973) studied this question.
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