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Scaling of efficiency in insect flight muscle

ReferenceS10245
Principal Investigator / Supervisor Professor Charles Ellington
Co-Investigators /
Co-Supervisors
Professor John Altringham
Institution University of Cambridge
DepartmentZoology
Funding typeResearch
Value (£) 91,561
StatusCompleted
TypeResearch Grant
Start date 01/09/1998
End date 01/09/2000
Duration24 months

Abstract

For all types of locomotion, overall efficiency increases with increasing body size. However, it is likely that differences in crossbridge cycling rate are far more important determinants of efficiency than in body mass, and the scaling of efficiency is probably associated with the concomitant decrease of contraction frequencies with increasing size. We propose to use scaling studies of hovering flight performance and in vitro experiments on synchronous and asynchronous insect flight muscle to separate the factors contributing to overall muscle efficiency: the activation costs associated with calcium cycling, the crossbridge efficiency, elastic energy storage, and the biochemical efficiency of ATP production. Thus we should be able to identify the main cause or causes of the scaling of locomotor efficiency. (Joint with 24/S10246).

Summary

unavailable
Committee Closed Committee - Animal Sciences (AS)
Research TopicsX – not assigned to a current Research Topic
Research PriorityX – Research Priority information not available
Research Initiative X - not in an Initiative
Funding SchemeX – not Funded via a specific Funding Scheme
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