Key result
X-ray diffraction of bumblebee flight muscles revealed that high-frequency wing beats are likely triggered by stretch-induced myosin deformation, a preexisting force-enhancing mechanism.
Insects likely use a refined preexisting force-enhancing mechanism (stretch-induced myosin deformation) for high-frequency wing beat rather than a novel mechanism.
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Iwamoto et al. (2013) studied High-frequency wing beat in bumblebees. X-ray diffraction of bumblebee flight muscles revealed that high-frequency wing beats are likely triggered by stretch-induced myosin deformation, a preexisting force-enhancing mechanism.
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