US 4,521,011 A · Hand engageable aquatic exercise assembly

Abstract

A hydrodynamic stroke builder has a specially configured aquatic hand section and forearm section with fins to progressively strengthen a person's arms, shoulders, chest and back. The hydrodynamic stroke builder can be interchangeably used by men, women and children alike and permits a wide range of movement with controlled amounts of fluid resistive forces, torque and torsion underwater. The stroke building consists of a hand engaging section which is either flat or convex and which has holes therein so that the user's fingers can readily grasp the hand engaging section. The forearm section conforms to the shape of the user's forearm and has V or U shaped fins extending therefrom to provide the proper resistance when the device is being used. The stroke builder can also include an upper arm section similar in design to the forearm section. The various sections are connected together by way of hinges.

Claims15

Dependent claims

A hydrodynamic stroke builder for use in water to strengthen the user's arm muscles, comprising:

a manually grippable hand section defining at least one set of finger holes, said manually grippable hand section having a palm-engaging means and a water impingement means for exerting substantially more hydrodynamic resistive forces on the user's arm when said hand section is moved through the water towards the user's foot than when said hand section is moved through the water away from the user's foot;
an elongated forearm section having a front face with a forearm-engaging portion, at least one strap for securing said forearm-engaging portion against the user's forearm, and a pair of substantially stationary rigid imperforate fins fixedly secured and extending laterally from said front face, each of said stationary rigid imperforate fins having an inner side extending rearwardly at an obtuse angle of inclination from said front face and an outer side extending forwardly at an acute angle of inclination from said inner side, said inner and outer sides cooperating with each other to define a pocket for cuppingly engaging the water and exerting substantially more hydrodynamic resistive forces on the user's forearm when said forearm section is moved through the water towards the user's foot than away from the user's foot;
and
hinge means pivotally connecting said hand section to said forearm section.

1 more element

Dependencies are inferred from the claim text.

Hand engageable aquatic exercise assembly

Life of this patent

Hand engageable aquatic exercise assembly

Life of this patent

Abstract

Claims15