| Both heart rate and wingbeat frequency were significantly higher during ascent than later in the flight. |
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| During the landing phase, pauses and wingbeat frequency increased and wingbeats became shallow. |
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| At its simplest, the flight stroke can be considered the gross up-and-down motion that makes a wingbeat. |
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| Studies of birds and bats have homologized the two major phases of the wingbeat and stride cycles. |
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| Aerodynamic loads affect the wing throughout the wingbeat cycle, but their influence is most obvious during downstroke. |
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| Assuming a constant wing shape and oscillating stroke, the average lift is proportional to the square of wingbeat frequency. |
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| The opening event is a butterfly's wingbeat that sends a ripple of anguish all over the planet. |
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| In a wingbeat, you will be able to admire the beauty of the town Saint-Hubert. |
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| Rayner et al. suggested that in both bats and birds flying in air, wingbeat gaits are in fact defined by upstroke function, which varies with wing morphology. |
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| It was previously believed that because hummingbirds with shorter wings generally have higher wingbeat frequency, they will be more maneuverable in competitive interactions. |
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| Similarly, heart rate, wingbeat frequency, and respiration of birds flying in wind tunnels can now be compared to that of birds migrating in the wild. |
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| In these, wingbeat rhythm is not matched to the rate of neural stimulation, which supports oscillatory work at a myogenic rather than neurogenic rhythm. |
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| They have probably been important in the evolution of the extremely rapid wingbeat of some insects. |
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| At nearly three times the average wingbeat of a hummingbird, toadfish have the fastest known muscle of any vertebrate. |
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| The tern began its tipsy flight upstream towards me, a zig then a zag as each wingbeat rocked it a little this way, a little that, all the time holding its height about four metres from the surface. |
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