| 摘要 |
Designs and methods are disclosed for permitting scooped shape swim fin blades ( 184 ) to flex around a transverse axis to a significantly reduced angle of attack while reducing or preventing the scooped blade portion ( 254 ) from collapsing or buckling under the longitudinal compression forces ( 22 ) exerted on the scooped portion during a large scale blade deflection ( 212 ) by strategically alleviating or controlling such compression forces ( 222 ). Methods are also disclosed for increasing flow capacity, effective scoop length, scoop depth over a greater length of the blade, reducing blade resistance to large scale deflections, reducing bending resistance within scooped blade portions ( 254 ) that are experiencing high levels of blade deflection. Methods are also provided for reducing lost motion and increasing propulsion during the inversion phase of a reciprocating kicking stroke cycle while also increasing the formation of a scooped blade region ( 254 ) during the inversion phase of the stroke cycle.
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