Here, we recorded x-ray diffraction movies, at a rate of frames per second, simultaneously from the two antagonistic flight muscles of bumblebees during wing beat. Signals that occurred at the right timing for triggering each wing-beat stroke were resolved in both muscles.
The signals likely reflect stretch-induced myosin deformation, which would also enhance force in vertebrate muscles. The results suggest that insects use a refined preexisting force-enhancing mechanism for high-frequency wing beat, rather than developing a novel mechanism. We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail.
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Abstract The high-frequency wing beat of higher-order insects is driven by self-sustained oscillations of constantly activated flight muscles.
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