Exercise methods and apparatus simulating stand-up paddle boarding

An exercise apparatus for simulating paddleboarding, comprising:

• (a) an elongate support structure;
• (b) a platform connected to the support structure for supporting a person standing thereon;
• (c) a paddle component configured to be handled by the person standing on the platform, the paddle component comprising an elongate shaft;
• (d) a tensioning line, the tensioning line including a first connector in proximity to a first end of the tensioning line, the paddle component including a second connector in proximity to a first end of the elongate shaft, the first and second connectors configured to,
• (i) connect together for connecting the paddle component to the tensioning line during the handling of the paddle component by the person standing on the platform, and
• (ii) disconnect from one another for disconnecting the paddle component from the tensioning line;
• (e) a housing connected to the support structure and spaced from the platform by a longitudinal distance sufficient to permit handling of the paddle component by the person standing on the platform, the tensioning line having a second end secured within the housing, the tensioning line extending from the housing when the first and second connectors are connected and the paddle component is handled by the person standing on the platform, wherein the housing contains,
• (i) a spring-biased spooling assembly configured, when the first and second connectors are connected, to wind the tensioning line thereon during the handling of the paddle component by the person standing on the platform, such that tension is maintained in the tensioning line and the tensioning line is retracted into the housing when the first end of the paddle component moves toward the housing during such handling, the spring-biased spooling assembly comprising a constant-force spring such that the constant-force spring exerts a generally constant force in opposition to unwinding of the tensioning line during extension of the tensioning line from the housing,
• (ii) a transmission system comprising a one-way clutch assembly, and
• (iii) an impeller-driven fluid circulation system, the transmission system interconnecting the spring-biased spooling assembly and an impeller of the impeller-driven fluid circulation system such that extension of the tensioning line outside of the housing during such handling results in driving of the impeller and circulation of fluid within the fluid circulation system,
• (iv) whereby retraction of the tensioning line into the housing does not result in driving of the impeller;
• and
• (f) an auxiliary resistance system for providing additional resistance to extension of the tensioning line outside of the housing and the consequent driving of the impeller, the auxiliary resistance system comprising a magnetic disc that is rotated through a magnetic field, wherein the transmission system drives rotation of the magnetic disc, and wherein extent of the magnetic field through which the magnetic disc is rotated is adjustable such that the resistance provided by the auxiliary resistance system is adjustable.