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Optimum Performance and Durable Construction

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The genesis of the Truefin swim fin came from earlier theoretical applications regarding titanium spinal implant devices for treating biological spine deformities, and also included technology to replace implanted solid long rigid metal bars with implanted articulating artificial spines in order to stabilize and strengthen the biological spine while improving comfort for the user.  For non-operative treatment of scoliosis, experimental back braces were also constructed which utilized artificial spine technology, where a back brace is biased toward centering lateral alignment to attempt to correct bending of the biological spine in the coronal plane, while allowing the biological spine to articulate and flex nearly unrestricted in the sagittal plane.  This was accomplished with artificial spines which include a linear configuration of bushings having concave and convex surfaces under compression which allow a central tensile member to flex in only one plane. 

Simultaneously, an efficient oscillating fin upper body propulsion apparatus was developed for handicapped users (adaptive divers) in order to take advantage of the therapeutic benefits of a body's increased output of serotonin which occurs at depth while scuba diving. 

Recognizing the potential to improve the efficiency of lower body propulsion, efforts began to advance the design of traditional swim fins.  Generally, the most important property of a swim fin is the angle of attack, and after several evolutions of design a variation of the original artificial spine was developed specifically for Truefin swim fins thereby offering multiple advantages of speed, efficiency, and comfort over traditional spineless fins.

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